./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test2-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e277983cfe4b30513b023d34f2b840358d8a25fd7a5c39241cadd105379bfb92 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:59:39,299 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:59:39,390 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-08 17:59:39,400 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:59:39,401 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:59:39,436 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:59:39,438 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:59:39,439 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:59:39,439 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:59:39,441 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:59:39,443 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:59:39,443 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:59:39,444 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:59:39,444 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:59:39,444 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:59:39,445 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:59:39,448 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:59:39,449 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:59:39,449 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:59:39,449 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:59:39,450 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-08 17:59:39,450 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-08 17:59:39,451 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-08 17:59:39,451 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:59:39,454 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 17:59:39,455 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:59:39,455 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 17:59:39,455 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:59:39,456 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:59:39,456 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:59:39,456 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:59:39,456 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:59:39,457 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:59:39,457 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:59:39,457 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:59:39,457 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:59:39,458 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:59:39,458 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:59:39,458 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:59:39,458 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:59:39,458 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:59:39,459 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:59:39,460 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e277983cfe4b30513b023d34f2b840358d8a25fd7a5c39241cadd105379bfb92 [2024-11-08 17:59:39,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:59:39,742 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:59:39,744 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:59:39,746 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:59:39,746 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:59:39,747 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test2-1.i Unable to find full path for "g++" [2024-11-08 17:59:41,838 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:59:42,229 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:59:42,229 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test2-1.i [2024-11-08 17:59:42,256 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/data/cb1554c68/f3466d1fc3054ac282f9cef345cab565/FLAG143e0f4f2 [2024-11-08 17:59:42,407 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/data/cb1554c68/f3466d1fc3054ac282f9cef345cab565 [2024-11-08 17:59:42,412 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:59:42,414 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:59:42,418 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:59:42,418 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:59:42,425 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:59:42,427 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:59:42" (1/1) ... [2024-11-08 17:59:42,429 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2788e70f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:42, skipping insertion in model container [2024-11-08 17:59:42,429 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:59:42" (1/1) ... [2024-11-08 17:59:42,484 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:59:43,128 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:59:43,161 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:59:43,165 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:59:43,173 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:59:43,185 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:59:43,237 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:59:43,238 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:59:43,241 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:59:43,242 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 17:59:43,254 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:59:43,274 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:59:43,407 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:59:43,471 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:59:43,473 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:43 WrapperNode [2024-11-08 17:59:43,473 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:59:43,474 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:59:43,475 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:59:43,475 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:59:43,482 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:43" (1/1) ... [2024-11-08 17:59:43,511 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:43" (1/1) ... [2024-11-08 17:59:43,598 INFO L138 Inliner]: procedures = 207, calls = 222, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1259 [2024-11-08 17:59:43,599 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:59:43,600 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:59:43,600 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:59:43,600 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:59:43,612 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:43" (1/1) ... [2024-11-08 17:59:43,632 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:43" (1/1) ... [2024-11-08 17:59:43,642 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:43" (1/1) ... [2024-11-08 17:59:43,731 INFO L175 MemorySlicer]: Split 206 memory accesses to 3 slices as follows [2, 170, 34]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 46 writes are split as follows [0, 42, 4]. [2024-11-08 17:59:43,731 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:43" (1/1) ... [2024-11-08 17:59:43,732 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:43" (1/1) ... [2024-11-08 17:59:43,804 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:43" (1/1) ... [2024-11-08 17:59:43,822 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:43" (1/1) ... [2024-11-08 17:59:43,828 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:43" (1/1) ... [2024-11-08 17:59:43,833 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:43" (1/1) ... [2024-11-08 17:59:43,844 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:59:43,848 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:59:43,848 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:59:43,848 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:59:43,849 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:43" (1/1) ... [2024-11-08 17:59:43,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:59:43,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:59:43,889 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:59:43,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:59:43,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-08 17:59:43,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-08 17:59:43,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-08 17:59:43,915 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-08 17:59:43,915 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-08 17:59:43,916 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-08 17:59:43,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 17:59:43,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-08 17:59:43,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-08 17:59:43,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-08 17:59:43,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 17:59:43,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 17:59:43,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 17:59:43,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 17:59:43,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 17:59:43,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 17:59:43,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 17:59:43,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 17:59:43,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:59:43,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-08 17:59:43,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-08 17:59:43,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-08 17:59:43,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:59:43,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 17:59:43,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 17:59:43,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:59:43,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:59:44,157 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:59:44,159 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:59:44,162 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-08 17:59:44,206 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-08 17:59:44,224 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-08 17:59:46,602 INFO L? ?]: Removed 1030 outVars from TransFormulas that were not future-live. [2024-11-08 17:59:46,602 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:59:46,639 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:59:46,639 INFO L316 CfgBuilder]: Removed 50 assume(true) statements. [2024-11-08 17:59:46,639 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:59:46 BoogieIcfgContainer [2024-11-08 17:59:46,640 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:59:46,642 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:59:46,642 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:59:46,645 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:59:46,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:59:42" (1/3) ... [2024-11-08 17:59:46,646 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f45a8ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:59:46, skipping insertion in model container [2024-11-08 17:59:46,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:43" (2/3) ... [2024-11-08 17:59:46,647 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f45a8ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:59:46, skipping insertion in model container [2024-11-08 17:59:46,647 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:59:46" (3/3) ... [2024-11-08 17:59:46,648 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_nondet_test2-1.i [2024-11-08 17:59:46,666 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:59:46,666 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 420 error locations. [2024-11-08 17:59:46,731 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:59:46,738 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@617c4093, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:59:46,738 INFO L334 AbstractCegarLoop]: Starting to check reachability of 420 error locations. [2024-11-08 17:59:46,746 INFO L276 IsEmpty]: Start isEmpty. Operand has 1057 states, 635 states have (on average 2.0078740157480315) internal successors, (1275), 1052 states have internal predecessors, (1275), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 17:59:46,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-08 17:59:46,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:59:46,753 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-08 17:59:46,753 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr419ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 17:59:46,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:46,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1758814, now seen corresponding path program 1 times [2024-11-08 17:59:46,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:46,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921353856] [2024-11-08 17:59:46,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:46,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:46,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:47,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:59:47,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:47,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921353856] [2024-11-08 17:59:47,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921353856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:59:47,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:59:47,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:59:47,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729470158] [2024-11-08 17:59:47,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:59:47,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:59:47,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:47,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:59:47,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:59:47,114 INFO L87 Difference]: Start difference. First operand has 1057 states, 635 states have (on average 2.0078740157480315) internal successors, (1275), 1052 states have internal predecessors, (1275), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:48,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:59:48,339 INFO L93 Difference]: Finished difference Result 1355 states and 1614 transitions. [2024-11-08 17:59:48,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:59:48,342 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-08 17:59:48,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:59:48,370 INFO L225 Difference]: With dead ends: 1355 [2024-11-08 17:59:48,371 INFO L226 Difference]: Without dead ends: 1351 [2024-11-08 17:59:48,373 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:59:48,379 INFO L432 NwaCegarLoop]: 1106 mSDtfsCounter, 386 mSDsluCounter, 1566 mSDsCounter, 0 mSdLazyCounter, 969 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 2672 SdHoareTripleChecker+Invalid, 970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:59:48,380 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 2672 Invalid, 970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 969 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 17:59:48,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1351 states. [2024-11-08 17:59:48,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1351 to 1266. [2024-11-08 17:59:48,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1266 states, 850 states have (on average 1.8823529411764706) internal successors, (1600), 1261 states have internal predecessors, (1600), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 17:59:48,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 1606 transitions. [2024-11-08 17:59:48,496 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 1606 transitions. Word has length 4 [2024-11-08 17:59:48,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:59:48,496 INFO L471 AbstractCegarLoop]: Abstraction has 1266 states and 1606 transitions. [2024-11-08 17:59:48,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:48,497 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 1606 transitions. [2024-11-08 17:59:48,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-08 17:59:48,497 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:59:48,497 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-08 17:59:48,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:59:48,498 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 17:59:48,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:48,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1756837, now seen corresponding path program 1 times [2024-11-08 17:59:48,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:48,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773834876] [2024-11-08 17:59:48,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:48,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:48,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:48,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:59:48,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:48,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773834876] [2024-11-08 17:59:48,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773834876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:59:48,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:59:48,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:59:48,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472522893] [2024-11-08 17:59:48,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:59:48,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:59:48,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:48,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:59:48,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:59:48,571 INFO L87 Difference]: Start difference. First operand 1266 states and 1606 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:49,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:59:49,181 INFO L93 Difference]: Finished difference Result 1263 states and 1598 transitions. [2024-11-08 17:59:49,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:59:49,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-08 17:59:49,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:59:49,187 INFO L225 Difference]: With dead ends: 1263 [2024-11-08 17:59:49,187 INFO L226 Difference]: Without dead ends: 1263 [2024-11-08 17:59:49,188 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:59:49,189 INFO L432 NwaCegarLoop]: 825 mSDtfsCounter, 1094 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1097 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 17:59:49,189 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1097 Valid, 869 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 17:59:49,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1263 states. [2024-11-08 17:59:49,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1263 to 1263. [2024-11-08 17:59:49,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1263 states, 858 states have (on average 1.8554778554778555) internal successors, (1592), 1258 states have internal predecessors, (1592), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 17:59:49,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1263 states to 1263 states and 1598 transitions. [2024-11-08 17:59:49,218 INFO L78 Accepts]: Start accepts. Automaton has 1263 states and 1598 transitions. Word has length 4 [2024-11-08 17:59:49,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:59:49,218 INFO L471 AbstractCegarLoop]: Abstraction has 1263 states and 1598 transitions. [2024-11-08 17:59:49,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:49,219 INFO L276 IsEmpty]: Start isEmpty. Operand 1263 states and 1598 transitions. [2024-11-08 17:59:49,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-08 17:59:49,219 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:59:49,219 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-08 17:59:49,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:59:49,220 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 17:59:49,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:49,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1756838, now seen corresponding path program 1 times [2024-11-08 17:59:49,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:49,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10062105] [2024-11-08 17:59:49,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:49,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:49,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:49,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:59:49,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:49,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10062105] [2024-11-08 17:59:49,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10062105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:59:49,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:59:49,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:59:49,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164594588] [2024-11-08 17:59:49,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:59:49,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:59:49,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:49,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:59:49,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:59:49,313 INFO L87 Difference]: Start difference. First operand 1263 states and 1598 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:50,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:59:50,133 INFO L93 Difference]: Finished difference Result 1347 states and 1593 transitions. [2024-11-08 17:59:50,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:59:50,137 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-08 17:59:50,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:59:50,146 INFO L225 Difference]: With dead ends: 1347 [2024-11-08 17:59:50,146 INFO L226 Difference]: Without dead ends: 1347 [2024-11-08 17:59:50,147 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:59:50,149 INFO L432 NwaCegarLoop]: 1108 mSDtfsCounter, 384 mSDsluCounter, 782 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 1890 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 17:59:50,154 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 1890 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 17:59:50,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1347 states. [2024-11-08 17:59:50,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1347 to 1262. [2024-11-08 17:59:50,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 858 states have (on average 1.8473193473193472) internal successors, (1585), 1257 states have internal predecessors, (1585), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 17:59:50,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 1591 transitions. [2024-11-08 17:59:50,194 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 1591 transitions. Word has length 4 [2024-11-08 17:59:50,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:59:50,195 INFO L471 AbstractCegarLoop]: Abstraction has 1262 states and 1591 transitions. [2024-11-08 17:59:50,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:50,195 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 1591 transitions. [2024-11-08 17:59:50,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 17:59:50,196 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:59:50,196 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:59:50,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:59:50,197 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 17:59:50,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:50,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1021429073, now seen corresponding path program 1 times [2024-11-08 17:59:50,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:50,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896013481] [2024-11-08 17:59:50,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:50,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:50,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:50,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:59:50,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:50,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896013481] [2024-11-08 17:59:50,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896013481] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:59:50,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:59:50,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:59:50,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950558155] [2024-11-08 17:59:50,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:59:50,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:59:50,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:50,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:59:50,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:59:50,419 INFO L87 Difference]: Start difference. First operand 1262 states and 1591 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:51,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:59:51,794 INFO L93 Difference]: Finished difference Result 1336 states and 1581 transitions. [2024-11-08 17:59:51,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:59:51,795 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-08 17:59:51,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:59:51,802 INFO L225 Difference]: With dead ends: 1336 [2024-11-08 17:59:51,802 INFO L226 Difference]: Without dead ends: 1336 [2024-11-08 17:59:51,802 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:59:51,803 INFO L432 NwaCegarLoop]: 849 mSDtfsCounter, 3345 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 1022 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3345 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 17:59:51,812 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3345 Valid, 1126 Invalid, 1054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1022 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 17:59:51,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1336 states. [2024-11-08 17:59:51,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1336 to 1251. [2024-11-08 17:59:51,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1251 states, 858 states have (on average 1.8333333333333333) internal successors, (1573), 1246 states have internal predecessors, (1573), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 17:59:51,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1251 states to 1251 states and 1579 transitions. [2024-11-08 17:59:51,843 INFO L78 Accepts]: Start accepts. Automaton has 1251 states and 1579 transitions. Word has length 8 [2024-11-08 17:59:51,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:59:51,844 INFO L471 AbstractCegarLoop]: Abstraction has 1251 states and 1579 transitions. [2024-11-08 17:59:51,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:51,844 INFO L276 IsEmpty]: Start isEmpty. Operand 1251 states and 1579 transitions. [2024-11-08 17:59:51,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 17:59:51,845 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:59:51,845 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:59:51,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 17:59:51,845 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 17:59:51,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:51,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1599530194, now seen corresponding path program 1 times [2024-11-08 17:59:51,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:51,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125462953] [2024-11-08 17:59:51,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:51,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:51,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:51,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:59:51,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:51,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125462953] [2024-11-08 17:59:51,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125462953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:59:51,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:59:51,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:59:51,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99268496] [2024-11-08 17:59:51,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:59:51,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:59:51,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:51,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:59:51,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:59:51,929 INFO L87 Difference]: Start difference. First operand 1251 states and 1579 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:52,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:59:52,730 INFO L93 Difference]: Finished difference Result 1289 states and 1534 transitions. [2024-11-08 17:59:52,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:59:52,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-08 17:59:52,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:59:52,736 INFO L225 Difference]: With dead ends: 1289 [2024-11-08 17:59:52,736 INFO L226 Difference]: Without dead ends: 1289 [2024-11-08 17:59:52,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:59:52,737 INFO L432 NwaCegarLoop]: 1123 mSDtfsCounter, 1068 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 1423 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 17:59:52,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1071 Valid, 1423 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 17:59:52,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2024-11-08 17:59:52,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 1204. [2024-11-08 17:59:52,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1204 states, 858 states have (on average 1.7785547785547786) internal successors, (1526), 1199 states have internal predecessors, (1526), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 17:59:52,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1204 states to 1204 states and 1532 transitions. [2024-11-08 17:59:52,763 INFO L78 Accepts]: Start accepts. Automaton has 1204 states and 1532 transitions. Word has length 9 [2024-11-08 17:59:52,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:59:52,764 INFO L471 AbstractCegarLoop]: Abstraction has 1204 states and 1532 transitions. [2024-11-08 17:59:52,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:52,764 INFO L276 IsEmpty]: Start isEmpty. Operand 1204 states and 1532 transitions. [2024-11-08 17:59:52,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 17:59:52,765 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:59:52,765 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:59:52,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 17:59:52,765 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 17:59:52,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:52,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1599530193, now seen corresponding path program 1 times [2024-11-08 17:59:52,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:52,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180565731] [2024-11-08 17:59:52,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:52,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:52,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:52,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:59:52,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:52,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180565731] [2024-11-08 17:59:52,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180565731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:59:52,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:59:52,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:59:52,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962058163] [2024-11-08 17:59:52,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:59:52,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:59:52,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:52,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:59:52,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:59:52,906 INFO L87 Difference]: Start difference. First operand 1204 states and 1532 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:53,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:59:53,647 INFO L93 Difference]: Finished difference Result 1491 states and 1897 transitions. [2024-11-08 17:59:53,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:59:53,647 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-08 17:59:53,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:59:53,653 INFO L225 Difference]: With dead ends: 1491 [2024-11-08 17:59:53,653 INFO L226 Difference]: Without dead ends: 1491 [2024-11-08 17:59:53,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:59:53,654 INFO L432 NwaCegarLoop]: 1256 mSDtfsCounter, 858 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 860 SdHoareTripleChecker+Valid, 1676 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 17:59:53,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [860 Valid, 1676 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 17:59:53,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1491 states. [2024-11-08 17:59:53,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1491 to 1179. [2024-11-08 17:59:53,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1179 states, 858 states have (on average 1.7494172494172495) internal successors, (1501), 1174 states have internal predecessors, (1501), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 17:59:53,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1179 states to 1179 states and 1507 transitions. [2024-11-08 17:59:53,680 INFO L78 Accepts]: Start accepts. Automaton has 1179 states and 1507 transitions. Word has length 9 [2024-11-08 17:59:53,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:59:53,680 INFO L471 AbstractCegarLoop]: Abstraction has 1179 states and 1507 transitions. [2024-11-08 17:59:53,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:53,681 INFO L276 IsEmpty]: Start isEmpty. Operand 1179 states and 1507 transitions. [2024-11-08 17:59:53,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-08 17:59:53,681 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:59:53,681 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:59:53,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 17:59:53,682 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr330REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 17:59:53,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:53,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1409972164, now seen corresponding path program 1 times [2024-11-08 17:59:53,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:53,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673689942] [2024-11-08 17:59:53,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:53,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:53,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:53,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:59:53,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:53,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673689942] [2024-11-08 17:59:53,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673689942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:59:53,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:59:53,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:59:53,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671544307] [2024-11-08 17:59:53,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:59:53,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:59:53,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:53,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:59:53,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:59:53,756 INFO L87 Difference]: Start difference. First operand 1179 states and 1507 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:54,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:59:54,524 INFO L93 Difference]: Finished difference Result 1254 states and 1613 transitions. [2024-11-08 17:59:54,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:59:54,526 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-08 17:59:54,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:59:54,531 INFO L225 Difference]: With dead ends: 1254 [2024-11-08 17:59:54,531 INFO L226 Difference]: Without dead ends: 1254 [2024-11-08 17:59:54,532 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:59:54,535 INFO L432 NwaCegarLoop]: 768 mSDtfsCounter, 1295 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1298 SdHoareTripleChecker+Valid, 1412 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 17:59:54,535 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1298 Valid, 1412 Invalid, 742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 17:59:54,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1254 states. [2024-11-08 17:59:54,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1254 to 1156. [2024-11-08 17:59:54,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1156 states, 858 states have (on average 1.6958041958041958) internal successors, (1455), 1151 states have internal predecessors, (1455), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 17:59:54,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1461 transitions. [2024-11-08 17:59:54,558 INFO L78 Accepts]: Start accepts. Automaton has 1156 states and 1461 transitions. Word has length 15 [2024-11-08 17:59:54,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:59:54,558 INFO L471 AbstractCegarLoop]: Abstraction has 1156 states and 1461 transitions. [2024-11-08 17:59:54,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:54,559 INFO L276 IsEmpty]: Start isEmpty. Operand 1156 states and 1461 transitions. [2024-11-08 17:59:54,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-08 17:59:54,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:59:54,559 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:59:54,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 17:59:54,560 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr331REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 17:59:54,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:54,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1409972163, now seen corresponding path program 1 times [2024-11-08 17:59:54,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:54,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132693142] [2024-11-08 17:59:54,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:54,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:54,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:54,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:59:54,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:54,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132693142] [2024-11-08 17:59:54,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132693142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:59:54,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:59:54,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:59:54,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114426766] [2024-11-08 17:59:54,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:59:54,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:59:54,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:54,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:59:54,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:59:54,618 INFO L87 Difference]: Start difference. First operand 1156 states and 1461 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:54,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:59:54,651 INFO L93 Difference]: Finished difference Result 1016 states and 1251 transitions. [2024-11-08 17:59:54,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:59:54,652 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-08 17:59:54,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:59:54,655 INFO L225 Difference]: With dead ends: 1016 [2024-11-08 17:59:54,655 INFO L226 Difference]: Without dead ends: 1016 [2024-11-08 17:59:54,655 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:59:54,656 INFO L432 NwaCegarLoop]: 977 mSDtfsCounter, 61 mSDsluCounter, 924 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 1901 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:59:54,656 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 1901 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:59:54,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2024-11-08 17:59:54,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 1016. [2024-11-08 17:59:54,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1016 states, 730 states have (on average 1.7054794520547945) internal successors, (1245), 1011 states have internal predecessors, (1245), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 17:59:54,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016 states to 1016 states and 1251 transitions. [2024-11-08 17:59:54,676 INFO L78 Accepts]: Start accepts. Automaton has 1016 states and 1251 transitions. Word has length 15 [2024-11-08 17:59:54,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:59:54,677 INFO L471 AbstractCegarLoop]: Abstraction has 1016 states and 1251 transitions. [2024-11-08 17:59:54,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:54,677 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states and 1251 transitions. [2024-11-08 17:59:54,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-08 17:59:54,677 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:59:54,678 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:59:54,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 17:59:54,678 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr355REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 17:59:54,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:54,679 INFO L85 PathProgramCache]: Analyzing trace with hash -752693253, now seen corresponding path program 1 times [2024-11-08 17:59:54,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:54,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037984463] [2024-11-08 17:59:54,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:54,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:54,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:54,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:59:54,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:54,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037984463] [2024-11-08 17:59:54,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037984463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:59:54,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:59:54,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:59:54,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840587810] [2024-11-08 17:59:54,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:59:54,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:59:54,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:54,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:59:54,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:59:54,733 INFO L87 Difference]: Start difference. First operand 1016 states and 1251 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:54,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:59:54,801 INFO L93 Difference]: Finished difference Result 987 states and 1201 transitions. [2024-11-08 17:59:54,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:59:54,801 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-08 17:59:54,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:59:54,804 INFO L225 Difference]: With dead ends: 987 [2024-11-08 17:59:54,805 INFO L226 Difference]: Without dead ends: 987 [2024-11-08 17:59:54,805 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:59:54,806 INFO L432 NwaCegarLoop]: 942 mSDtfsCounter, 41 mSDsluCounter, 1856 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 2798 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:59:54,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 2798 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:59:54,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 987 states. [2024-11-08 17:59:54,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 987 to 981. [2024-11-08 17:59:54,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 702 states have (on average 1.6937321937321936) internal successors, (1189), 976 states have internal predecessors, (1189), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 17:59:54,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1195 transitions. [2024-11-08 17:59:54,825 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1195 transitions. Word has length 16 [2024-11-08 17:59:54,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:59:54,825 INFO L471 AbstractCegarLoop]: Abstraction has 981 states and 1195 transitions. [2024-11-08 17:59:54,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:54,826 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1195 transitions. [2024-11-08 17:59:54,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-08 17:59:54,826 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:59:54,826 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:59:54,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 17:59:54,827 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 17:59:54,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:54,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1271928384, now seen corresponding path program 1 times [2024-11-08 17:59:54,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:54,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812969330] [2024-11-08 17:59:54,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:54,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:54,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:54,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:59:54,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:54,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812969330] [2024-11-08 17:59:54,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812969330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:59:54,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:59:54,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:59:54,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680344312] [2024-11-08 17:59:54,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:59:54,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:59:54,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:54,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:59:54,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:59:54,891 INFO L87 Difference]: Start difference. First operand 981 states and 1195 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:55,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:59:55,691 INFO L93 Difference]: Finished difference Result 1050 states and 1250 transitions. [2024-11-08 17:59:55,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:59:55,692 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-08 17:59:55,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:59:55,695 INFO L225 Difference]: With dead ends: 1050 [2024-11-08 17:59:55,695 INFO L226 Difference]: Without dead ends: 1050 [2024-11-08 17:59:55,695 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:59:55,696 INFO L432 NwaCegarLoop]: 829 mSDtfsCounter, 1178 mSDsluCounter, 830 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1181 SdHoareTripleChecker+Valid, 1659 SdHoareTripleChecker+Invalid, 819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 17:59:55,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1181 Valid, 1659 Invalid, 819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 17:59:55,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1050 states. [2024-11-08 17:59:55,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1050 to 958. [2024-11-08 17:59:55,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 958 states, 702 states have (on average 1.660968660968661) internal successors, (1166), 953 states have internal predecessors, (1166), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 17:59:55,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 1172 transitions. [2024-11-08 17:59:55,713 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 1172 transitions. Word has length 20 [2024-11-08 17:59:55,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:59:55,714 INFO L471 AbstractCegarLoop]: Abstraction has 958 states and 1172 transitions. [2024-11-08 17:59:55,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:55,714 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 1172 transitions. [2024-11-08 17:59:55,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-08 17:59:55,715 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:59:55,715 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:59:55,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 17:59:55,715 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 17:59:55,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:55,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1271928383, now seen corresponding path program 1 times [2024-11-08 17:59:55,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:55,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695889131] [2024-11-08 17:59:55,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:55,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:55,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:55,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:59:55,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:55,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695889131] [2024-11-08 17:59:55,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695889131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:59:55,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:59:55,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:59:55,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066936318] [2024-11-08 17:59:55,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:59:55,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:59:55,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:55,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:59:55,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:59:55,789 INFO L87 Difference]: Start difference. First operand 958 states and 1172 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:55,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:59:55,825 INFO L93 Difference]: Finished difference Result 882 states and 1067 transitions. [2024-11-08 17:59:55,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:59:55,826 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-08 17:59:55,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:59:55,828 INFO L225 Difference]: With dead ends: 882 [2024-11-08 17:59:55,828 INFO L226 Difference]: Without dead ends: 882 [2024-11-08 17:59:55,829 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:59:55,830 INFO L432 NwaCegarLoop]: 821 mSDtfsCounter, 61 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 1589 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:59:55,830 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 1589 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:59:55,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2024-11-08 17:59:55,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 882. [2024-11-08 17:59:55,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 638 states have (on average 1.6630094043887147) internal successors, (1061), 877 states have internal predecessors, (1061), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 17:59:55,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1067 transitions. [2024-11-08 17:59:55,848 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1067 transitions. Word has length 20 [2024-11-08 17:59:55,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:59:55,849 INFO L471 AbstractCegarLoop]: Abstraction has 882 states and 1067 transitions. [2024-11-08 17:59:55,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:55,850 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1067 transitions. [2024-11-08 17:59:55,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-08 17:59:55,852 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:59:55,852 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:59:55,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 17:59:55,852 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr39REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 17:59:55,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:55,853 INFO L85 PathProgramCache]: Analyzing trace with hash -768304611, now seen corresponding path program 1 times [2024-11-08 17:59:55,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:55,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295841731] [2024-11-08 17:59:55,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:55,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:55,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:55,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:59:55,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:55,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295841731] [2024-11-08 17:59:55,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295841731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:59:55,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:59:55,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:59:55,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258292069] [2024-11-08 17:59:55,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:59:55,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:59:55,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:55,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:59:55,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:59:55,928 INFO L87 Difference]: Start difference. First operand 882 states and 1067 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:55,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:59:55,988 INFO L93 Difference]: Finished difference Result 864 states and 1042 transitions. [2024-11-08 17:59:55,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:59:55,988 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-11-08 17:59:55,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:59:55,992 INFO L225 Difference]: With dead ends: 864 [2024-11-08 17:59:55,992 INFO L226 Difference]: Without dead ends: 864 [2024-11-08 17:59:55,993 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:59:55,994 INFO L432 NwaCegarLoop]: 786 mSDtfsCounter, 41 mSDsluCounter, 1544 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 2330 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:59:55,994 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 2330 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:59:55,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2024-11-08 17:59:56,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 861. [2024-11-08 17:59:56,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 624 states have (on average 1.6554487179487178) internal successors, (1033), 856 states have internal predecessors, (1033), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 17:59:56,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1039 transitions. [2024-11-08 17:59:56,016 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1039 transitions. Word has length 21 [2024-11-08 17:59:56,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:59:56,016 INFO L471 AbstractCegarLoop]: Abstraction has 861 states and 1039 transitions. [2024-11-08 17:59:56,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:56,017 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1039 transitions. [2024-11-08 17:59:56,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-08 17:59:56,017 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:59:56,017 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:59:56,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 17:59:56,018 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr369REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 17:59:56,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:56,018 INFO L85 PathProgramCache]: Analyzing trace with hash -607542615, now seen corresponding path program 1 times [2024-11-08 17:59:56,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:56,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668670432] [2024-11-08 17:59:56,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:56,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:56,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:56,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:59:56,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:56,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668670432] [2024-11-08 17:59:56,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668670432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:59:56,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:59:56,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:59:56,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413479275] [2024-11-08 17:59:56,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:59:56,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:59:56,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:56,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:59:56,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:59:56,200 INFO L87 Difference]: Start difference. First operand 861 states and 1039 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:56,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:59:56,918 INFO L93 Difference]: Finished difference Result 949 states and 1113 transitions. [2024-11-08 17:59:56,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:59:56,919 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2024-11-08 17:59:56,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:59:56,922 INFO L225 Difference]: With dead ends: 949 [2024-11-08 17:59:56,922 INFO L226 Difference]: Without dead ends: 949 [2024-11-08 17:59:56,922 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:59:56,923 INFO L432 NwaCegarLoop]: 755 mSDtfsCounter, 383 mSDsluCounter, 1000 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 1755 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 17:59:56,923 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 1755 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 17:59:56,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2024-11-08 17:59:56,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 861. [2024-11-08 17:59:56,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 624 states have (on average 1.6490384615384615) internal successors, (1029), 856 states have internal predecessors, (1029), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 17:59:56,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1035 transitions. [2024-11-08 17:59:56,955 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1035 transitions. Word has length 30 [2024-11-08 17:59:56,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:59:56,956 INFO L471 AbstractCegarLoop]: Abstraction has 861 states and 1035 transitions. [2024-11-08 17:59:56,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:56,956 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1035 transitions. [2024-11-08 17:59:56,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-08 17:59:56,960 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:59:56,961 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:59:56,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 17:59:56,961 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 17:59:56,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:56,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1697897099, now seen corresponding path program 1 times [2024-11-08 17:59:56,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:56,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385572691] [2024-11-08 17:59:56,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:56,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:56,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:57,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:59:57,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:57,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385572691] [2024-11-08 17:59:57,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385572691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:59:57,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:59:57,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:59:57,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328039102] [2024-11-08 17:59:57,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:59:57,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:59:57,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:57,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:59:57,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:59:57,123 INFO L87 Difference]: Start difference. First operand 861 states and 1035 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:57,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:59:57,866 INFO L93 Difference]: Finished difference Result 1184 states and 1432 transitions. [2024-11-08 17:59:57,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:59:57,867 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2024-11-08 17:59:57,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:59:57,870 INFO L225 Difference]: With dead ends: 1184 [2024-11-08 17:59:57,871 INFO L226 Difference]: Without dead ends: 1184 [2024-11-08 17:59:57,871 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:59:57,872 INFO L432 NwaCegarLoop]: 891 mSDtfsCounter, 649 mSDsluCounter, 1018 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 1909 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 17:59:57,872 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [649 Valid, 1909 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 738 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 17:59:57,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1184 states. [2024-11-08 17:59:57,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1184 to 857. [2024-11-08 17:59:57,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 857 states, 624 states have (on average 1.642628205128205) internal successors, (1025), 852 states have internal predecessors, (1025), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 17:59:57,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1031 transitions. [2024-11-08 17:59:57,889 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1031 transitions. Word has length 35 [2024-11-08 17:59:57,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:59:57,889 INFO L471 AbstractCegarLoop]: Abstraction has 857 states and 1031 transitions. [2024-11-08 17:59:57,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:57,890 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1031 transitions. [2024-11-08 17:59:57,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-08 17:59:57,891 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:59:57,891 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:59:57,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 17:59:57,891 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr376REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 17:59:57,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:57,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1487707269, now seen corresponding path program 1 times [2024-11-08 17:59:57,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:57,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743047526] [2024-11-08 17:59:57,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:57,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:57,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:57,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:59:57,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:57,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743047526] [2024-11-08 17:59:57,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743047526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:59:57,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:59:57,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:59:57,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450827955] [2024-11-08 17:59:57,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:59:57,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:59:57,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:57,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:59:57,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:59:57,970 INFO L87 Difference]: Start difference. First operand 857 states and 1031 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:58,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:59:58,025 INFO L93 Difference]: Finished difference Result 857 states and 1023 transitions. [2024-11-08 17:59:58,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:59:58,026 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2024-11-08 17:59:58,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:59:58,029 INFO L225 Difference]: With dead ends: 857 [2024-11-08 17:59:58,029 INFO L226 Difference]: Without dead ends: 857 [2024-11-08 17:59:58,029 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:59:58,030 INFO L432 NwaCegarLoop]: 781 mSDtfsCounter, 27 mSDsluCounter, 1525 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 2306 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:59:58,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 2306 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:59:58,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2024-11-08 17:59:58,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 857. [2024-11-08 17:59:58,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 857 states, 624 states have (on average 1.6298076923076923) internal successors, (1017), 852 states have internal predecessors, (1017), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 17:59:58,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1023 transitions. [2024-11-08 17:59:58,045 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1023 transitions. Word has length 62 [2024-11-08 17:59:58,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:59:58,046 INFO L471 AbstractCegarLoop]: Abstraction has 857 states and 1023 transitions. [2024-11-08 17:59:58,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:58,046 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1023 transitions. [2024-11-08 17:59:58,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-08 17:59:58,047 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:59:58,047 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:59:58,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 17:59:58,048 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr117REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 17:59:58,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:58,048 INFO L85 PathProgramCache]: Analyzing trace with hash -267693667, now seen corresponding path program 1 times [2024-11-08 17:59:58,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:58,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526578818] [2024-11-08 17:59:58,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:58,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:58,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:58,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:59:58,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:58,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526578818] [2024-11-08 17:59:58,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526578818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:59:58,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:59:58,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:59:58,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520020650] [2024-11-08 17:59:58,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:59:58,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:59:58,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:58,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:59:58,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:59:58,186 INFO L87 Difference]: Start difference. First operand 857 states and 1023 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:58,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:59:58,240 INFO L93 Difference]: Finished difference Result 857 states and 1019 transitions. [2024-11-08 17:59:58,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:59:58,240 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-08 17:59:58,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:59:58,243 INFO L225 Difference]: With dead ends: 857 [2024-11-08 17:59:58,243 INFO L226 Difference]: Without dead ends: 857 [2024-11-08 17:59:58,244 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:59:58,244 INFO L432 NwaCegarLoop]: 777 mSDtfsCounter, 21 mSDsluCounter, 1523 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 2300 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:59:58,245 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 2300 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:59:58,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2024-11-08 17:59:58,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 857. [2024-11-08 17:59:58,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 857 states, 624 states have (on average 1.623397435897436) internal successors, (1013), 852 states have internal predecessors, (1013), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 17:59:58,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1019 transitions. [2024-11-08 17:59:58,259 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1019 transitions. Word has length 69 [2024-11-08 17:59:58,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:59:58,260 INFO L471 AbstractCegarLoop]: Abstraction has 857 states and 1019 transitions. [2024-11-08 17:59:58,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:58,260 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1019 transitions. [2024-11-08 17:59:58,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-08 17:59:58,261 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:59:58,261 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:59:58,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 17:59:58,262 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr376REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 17:59:58,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:58,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1846394823, now seen corresponding path program 1 times [2024-11-08 17:59:58,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:58,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700284824] [2024-11-08 17:59:58,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:58,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:58,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:58,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:59:58,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:58,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700284824] [2024-11-08 17:59:58,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700284824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:59:58,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:59:58,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:59:58,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303788972] [2024-11-08 17:59:58,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:59:58,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:59:58,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:58,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:59:58,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:59:58,359 INFO L87 Difference]: Start difference. First operand 857 states and 1019 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:58,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:59:58,424 INFO L93 Difference]: Finished difference Result 1020 states and 1190 transitions. [2024-11-08 17:59:58,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:59:58,424 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-08 17:59:58,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:59:58,427 INFO L225 Difference]: With dead ends: 1020 [2024-11-08 17:59:58,428 INFO L226 Difference]: Without dead ends: 1020 [2024-11-08 17:59:58,428 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:59:58,429 INFO L432 NwaCegarLoop]: 798 mSDtfsCounter, 198 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 1544 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:59:58,429 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 1544 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:59:58,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2024-11-08 17:59:58,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 1010. [2024-11-08 17:59:58,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1010 states, 777 states have (on average 1.5186615186615187) internal successors, (1180), 1005 states have internal predecessors, (1180), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 17:59:58,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1010 states to 1010 states and 1186 transitions. [2024-11-08 17:59:58,447 INFO L78 Accepts]: Start accepts. Automaton has 1010 states and 1186 transitions. Word has length 70 [2024-11-08 17:59:58,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:59:58,448 INFO L471 AbstractCegarLoop]: Abstraction has 1010 states and 1186 transitions. [2024-11-08 17:59:58,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:58,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1010 states and 1186 transitions. [2024-11-08 17:59:58,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-08 17:59:58,449 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:59:58,449 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:59:58,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 17:59:58,449 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr414ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 17:59:58,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:58,450 INFO L85 PathProgramCache]: Analyzing trace with hash 438438093, now seen corresponding path program 1 times [2024-11-08 17:59:58,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:58,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166142112] [2024-11-08 17:59:58,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:58,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:58,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:58,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:59:58,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:58,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166142112] [2024-11-08 17:59:58,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166142112] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:59:58,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:59:58,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:59:58,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064669967] [2024-11-08 17:59:58,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:59:58,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:59:58,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:58,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:59:58,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:59:58,905 INFO L87 Difference]: Start difference. First operand 1010 states and 1186 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:59,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:59:59,098 INFO L93 Difference]: Finished difference Result 1484 states and 1692 transitions. [2024-11-08 17:59:59,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:59:59,098 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-11-08 17:59:59,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:59:59,103 INFO L225 Difference]: With dead ends: 1484 [2024-11-08 17:59:59,103 INFO L226 Difference]: Without dead ends: 1481 [2024-11-08 17:59:59,104 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:59:59,104 INFO L432 NwaCegarLoop]: 772 mSDtfsCounter, 733 mSDsluCounter, 3077 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 3849 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:59:59,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 3849 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:59:59,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1481 states. [2024-11-08 17:59:59,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1481 to 911. [2024-11-08 17:59:59,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 911 states, 678 states have (on average 1.551622418879056) internal successors, (1052), 906 states have internal predecessors, (1052), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 17:59:59,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 911 states and 1058 transitions. [2024-11-08 17:59:59,129 INFO L78 Accepts]: Start accepts. Automaton has 911 states and 1058 transitions. Word has length 76 [2024-11-08 17:59:59,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:59:59,130 INFO L471 AbstractCegarLoop]: Abstraction has 911 states and 1058 transitions. [2024-11-08 17:59:59,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:59,130 INFO L276 IsEmpty]: Start isEmpty. Operand 911 states and 1058 transitions. [2024-11-08 17:59:59,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-08 17:59:59,131 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:59:59,131 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:59:59,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 17:59:59,131 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 17:59:59,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:59,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1698343876, now seen corresponding path program 1 times [2024-11-08 17:59:59,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:59,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876368739] [2024-11-08 17:59:59,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:59,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:59,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:59,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:59:59,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:59,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876368739] [2024-11-08 17:59:59,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876368739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:59:59,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:59:59,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:59:59,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767092210] [2024-11-08 17:59:59,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:59:59,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:59:59,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:59,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:59:59,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:59:59,453 INFO L87 Difference]: Start difference. First operand 911 states and 1058 transitions. Second operand has 5 states, 4 states have (on average 21.25) internal successors, (85), 5 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:00:00,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:00:00,222 INFO L93 Difference]: Finished difference Result 910 states and 1057 transitions. [2024-11-08 18:00:00,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:00:00,223 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.25) internal successors, (85), 5 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-11-08 18:00:00,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:00:00,226 INFO L225 Difference]: With dead ends: 910 [2024-11-08 18:00:00,226 INFO L226 Difference]: Without dead ends: 910 [2024-11-08 18:00:00,227 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:00:00,227 INFO L432 NwaCegarLoop]: 788 mSDtfsCounter, 2 mSDsluCounter, 1511 mSDsCounter, 0 mSdLazyCounter, 860 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2299 SdHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:00:00,227 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2299 Invalid, 861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 860 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 18:00:00,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2024-11-08 18:00:00,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 910. [2024-11-08 18:00:00,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 678 states have (on average 1.5501474926253687) internal successors, (1051), 905 states have internal predecessors, (1051), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:00:00,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1057 transitions. [2024-11-08 18:00:00,242 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1057 transitions. Word has length 85 [2024-11-08 18:00:00,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:00:00,243 INFO L471 AbstractCegarLoop]: Abstraction has 910 states and 1057 transitions. [2024-11-08 18:00:00,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.25) internal successors, (85), 5 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:00:00,243 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1057 transitions. [2024-11-08 18:00:00,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-08 18:00:00,245 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:00:00,245 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:00:00,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 18:00:00,248 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:00:00,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:00:00,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1698343875, now seen corresponding path program 1 times [2024-11-08 18:00:00,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:00:00,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352238771] [2024-11-08 18:00:00,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:00,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:00:00,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:00,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:00:00,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:00:00,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352238771] [2024-11-08 18:00:00,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352238771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:00:00,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:00:00,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:00:00,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715043879] [2024-11-08 18:00:00,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:00:00,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:00:00,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:00:00,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:00:00,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:00:00,861 INFO L87 Difference]: Start difference. First operand 910 states and 1057 transitions. Second operand has 5 states, 4 states have (on average 21.25) internal successors, (85), 5 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:00:01,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:00:01,753 INFO L93 Difference]: Finished difference Result 909 states and 1056 transitions. [2024-11-08 18:00:01,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:00:01,754 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.25) internal successors, (85), 5 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-11-08 18:00:01,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:00:01,757 INFO L225 Difference]: With dead ends: 909 [2024-11-08 18:00:01,759 INFO L226 Difference]: Without dead ends: 909 [2024-11-08 18:00:01,759 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:00:01,760 INFO L432 NwaCegarLoop]: 788 mSDtfsCounter, 1 mSDsluCounter, 1470 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2258 SdHoareTripleChecker+Invalid, 899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 18:00:01,760 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2258 Invalid, 899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 898 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 18:00:01,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2024-11-08 18:00:01,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 909. [2024-11-08 18:00:01,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 677 states have (on average 1.5509601181683899) internal successors, (1050), 904 states have internal predecessors, (1050), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:00:01,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1056 transitions. [2024-11-08 18:00:01,782 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1056 transitions. Word has length 85 [2024-11-08 18:00:01,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:00:01,782 INFO L471 AbstractCegarLoop]: Abstraction has 909 states and 1056 transitions. [2024-11-08 18:00:01,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.25) internal successors, (85), 5 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:00:01,783 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1056 transitions. [2024-11-08 18:00:01,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-08 18:00:01,784 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:00:01,784 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:00:01,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 18:00:01,784 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:00:01,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:00:01,785 INFO L85 PathProgramCache]: Analyzing trace with hash -355007197, now seen corresponding path program 1 times [2024-11-08 18:00:01,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:00:01,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691155767] [2024-11-08 18:00:01,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:01,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:00:01,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:02,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 18:00:02,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:02,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:00:02,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:00:02,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691155767] [2024-11-08 18:00:02,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691155767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:00:02,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:00:02,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:00:02,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717533163] [2024-11-08 18:00:02,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:00:02,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:00:02,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:00:02,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:00:02,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:00:02,092 INFO L87 Difference]: Start difference. First operand 909 states and 1056 transitions. Second operand has 7 states, 5 states have (on average 18.2) internal successors, (91), 6 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:00:03,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:00:03,067 INFO L93 Difference]: Finished difference Result 921 states and 1071 transitions. [2024-11-08 18:00:03,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:00:03,067 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 18.2) internal successors, (91), 6 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 93 [2024-11-08 18:00:03,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:00:03,074 INFO L225 Difference]: With dead ends: 921 [2024-11-08 18:00:03,075 INFO L226 Difference]: Without dead ends: 921 [2024-11-08 18:00:03,075 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:00:03,076 INFO L432 NwaCegarLoop]: 780 mSDtfsCounter, 10 mSDsluCounter, 2776 mSDsCounter, 0 mSdLazyCounter, 1182 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 3556 SdHoareTripleChecker+Invalid, 1186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 18:00:03,076 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 3556 Invalid, 1186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1182 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 18:00:03,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2024-11-08 18:00:03,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 915. [2024-11-08 18:00:03,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 915 states, 682 states have (on average 1.5498533724340176) internal successors, (1057), 909 states have internal predecessors, (1057), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-08 18:00:03,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1066 transitions. [2024-11-08 18:00:03,097 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1066 transitions. Word has length 93 [2024-11-08 18:00:03,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:00:03,097 INFO L471 AbstractCegarLoop]: Abstraction has 915 states and 1066 transitions. [2024-11-08 18:00:03,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 18.2) internal successors, (91), 6 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:00:03,098 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1066 transitions. [2024-11-08 18:00:03,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-08 18:00:03,098 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:00:03,099 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:00:03,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 18:00:03,099 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:00:03,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:00:03,099 INFO L85 PathProgramCache]: Analyzing trace with hash -355007196, now seen corresponding path program 1 times [2024-11-08 18:00:03,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:00:03,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980600221] [2024-11-08 18:00:03,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:03,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:00:03,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:03,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 18:00:03,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:03,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:00:03,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:00:03,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980600221] [2024-11-08 18:00:03,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980600221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:00:03,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:00:03,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:00:03,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996834042] [2024-11-08 18:00:03,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:00:03,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:00:03,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:00:03,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:00:03,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:00:03,892 INFO L87 Difference]: Start difference. First operand 915 states and 1066 transitions. Second operand has 7 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:00:04,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:00:04,840 INFO L93 Difference]: Finished difference Result 915 states and 1065 transitions. [2024-11-08 18:00:04,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:00:04,841 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 93 [2024-11-08 18:00:04,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:00:04,844 INFO L225 Difference]: With dead ends: 915 [2024-11-08 18:00:04,844 INFO L226 Difference]: Without dead ends: 915 [2024-11-08 18:00:04,844 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:00:04,845 INFO L432 NwaCegarLoop]: 784 mSDtfsCounter, 5 mSDsluCounter, 2138 mSDsCounter, 0 mSdLazyCounter, 1022 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2922 SdHoareTripleChecker+Invalid, 1026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 18:00:04,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2922 Invalid, 1026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1022 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 18:00:04,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2024-11-08 18:00:04,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 915. [2024-11-08 18:00:04,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 915 states, 682 states have (on average 1.5483870967741935) internal successors, (1056), 909 states have internal predecessors, (1056), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-08 18:00:04,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1065 transitions. [2024-11-08 18:00:04,862 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1065 transitions. Word has length 93 [2024-11-08 18:00:04,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:00:04,862 INFO L471 AbstractCegarLoop]: Abstraction has 915 states and 1065 transitions. [2024-11-08 18:00:04,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:00:04,863 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1065 transitions. [2024-11-08 18:00:04,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 18:00:04,863 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:00:04,863 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:00:04,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 18:00:04,864 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:00:04,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:00:04,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1794296714, now seen corresponding path program 1 times [2024-11-08 18:00:04,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:00:04,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972649568] [2024-11-08 18:00:04,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:04,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:00:04,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:05,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 18:00:05,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:05,583 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:00:05,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:00:05,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972649568] [2024-11-08 18:00:05,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972649568] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:00:05,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373634368] [2024-11-08 18:00:05,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:05,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:00:05,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:00:05,587 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:00:05,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:00:05,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:05,853 INFO L255 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 18:00:05,862 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:00:05,903 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-08 18:00:06,084 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-08 18:00:06,084 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-08 18:00:06,126 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 18:00:06,237 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-08 18:00:06,446 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:00:06,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-08 18:00:06,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-08 18:00:06,544 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:00:06,544 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:00:06,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1373634368] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:00:06,620 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:00:06,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 18 [2024-11-08 18:00:06,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559829822] [2024-11-08 18:00:06,621 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:00:06,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-08 18:00:06,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:00:06,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-08 18:00:06,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=321, Unknown=5, NotChecked=0, Total=380 [2024-11-08 18:00:06,628 INFO L87 Difference]: Start difference. First operand 915 states and 1065 transitions. Second operand has 19 states, 16 states have (on average 9.25) internal successors, (148), 18 states have internal predecessors, (148), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:00:09,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:00:09,372 INFO L93 Difference]: Finished difference Result 922 states and 1072 transitions. [2024-11-08 18:00:09,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 18:00:09,372 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 9.25) internal successors, (148), 18 states have internal predecessors, (148), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 94 [2024-11-08 18:00:09,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:00:09,375 INFO L225 Difference]: With dead ends: 922 [2024-11-08 18:00:09,376 INFO L226 Difference]: Without dead ends: 922 [2024-11-08 18:00:09,376 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 90 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=87, Invalid=508, Unknown=5, NotChecked=0, Total=600 [2024-11-08 18:00:09,377 INFO L432 NwaCegarLoop]: 493 mSDtfsCounter, 702 mSDsluCounter, 5259 mSDsCounter, 0 mSdLazyCounter, 3638 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 5752 SdHoareTripleChecker+Invalid, 3652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 3638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:00:09,377 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 5752 Invalid, 3652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 3638 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-08 18:00:09,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2024-11-08 18:00:09,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 919. [2024-11-08 18:00:09,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 919 states, 686 states have (on average 1.5451895043731778) internal successors, (1060), 912 states have internal predecessors, (1060), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 18:00:09,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1067 transitions. [2024-11-08 18:00:09,395 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1067 transitions. Word has length 94 [2024-11-08 18:00:09,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:00:09,395 INFO L471 AbstractCegarLoop]: Abstraction has 919 states and 1067 transitions. [2024-11-08 18:00:09,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 9.25) internal successors, (148), 18 states have internal predecessors, (148), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:00:09,395 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1067 transitions. [2024-11-08 18:00:09,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 18:00:09,396 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:00:09,397 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:00:09,419 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 18:00:09,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:00:09,601 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:00:09,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:00:09,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1794296713, now seen corresponding path program 1 times [2024-11-08 18:00:09,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:00:09,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715645768] [2024-11-08 18:00:09,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:09,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:00:09,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:10,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 18:00:10,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:10,695 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:00:10,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:00:10,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715645768] [2024-11-08 18:00:10,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715645768] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:00:10,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953629508] [2024-11-08 18:00:10,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:10,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:00:10,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:00:10,699 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:00:10,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 18:00:10,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:10,976 INFO L255 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-08 18:00:10,984 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:00:10,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-08 18:00:11,144 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-08 18:00:11,145 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-08 18:00:11,153 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 18:00:11,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 18:00:11,193 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-08 18:00:11,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-08 18:00:11,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-08 18:00:11,445 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:00:11,445 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-08 18:00:11,451 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-08 18:00:11,503 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-08 18:00:11,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-08 18:00:11,533 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:00:11,534 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:00:11,654 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_799 (Array Int Int)) (v_ArrVal_798 (Array Int Int))) (<= (+ 20 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_798) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_799) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_798 (Array Int Int))) (<= 0 (+ 16 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_798) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-08 18:00:11,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953629508] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:00:11,657 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:00:11,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 18 [2024-11-08 18:00:11,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066430070] [2024-11-08 18:00:11,657 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:00:11,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-08 18:00:11,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:00:11,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-08 18:00:11,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=360, Unknown=1, NotChecked=38, Total=462 [2024-11-08 18:00:11,659 INFO L87 Difference]: Start difference. First operand 919 states and 1067 transitions. Second operand has 19 states, 16 states have (on average 9.25) internal successors, (148), 18 states have internal predecessors, (148), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:00:14,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:00:14,605 INFO L93 Difference]: Finished difference Result 921 states and 1071 transitions. [2024-11-08 18:00:14,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 18:00:14,606 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 9.25) internal successors, (148), 18 states have internal predecessors, (148), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 94 [2024-11-08 18:00:14,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:00:14,609 INFO L225 Difference]: With dead ends: 921 [2024-11-08 18:00:14,610 INFO L226 Difference]: Without dead ends: 921 [2024-11-08 18:00:14,610 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 88 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=103, Invalid=550, Unknown=1, NotChecked=48, Total=702 [2024-11-08 18:00:14,611 INFO L432 NwaCegarLoop]: 496 mSDtfsCounter, 702 mSDsluCounter, 4186 mSDsCounter, 0 mSdLazyCounter, 3984 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 4682 SdHoareTripleChecker+Invalid, 4001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 3984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:00:14,611 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 4682 Invalid, 4001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 3984 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-08 18:00:14,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2024-11-08 18:00:14,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 912. [2024-11-08 18:00:14,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 912 states, 681 states have (on average 1.5462555066079295) internal successors, (1053), 906 states have internal predecessors, (1053), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:00:14,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1059 transitions. [2024-11-08 18:00:14,631 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1059 transitions. Word has length 94 [2024-11-08 18:00:14,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:00:14,631 INFO L471 AbstractCegarLoop]: Abstraction has 912 states and 1059 transitions. [2024-11-08 18:00:14,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 9.25) internal successors, (148), 18 states have internal predecessors, (148), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:00:14,632 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1059 transitions. [2024-11-08 18:00:14,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-08 18:00:14,633 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:00:14,633 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:00:14,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 18:00:14,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-08 18:00:14,837 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr84REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:00:14,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:00:14,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1809290499, now seen corresponding path program 1 times [2024-11-08 18:00:14,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:00:14,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258230221] [2024-11-08 18:00:14,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:14,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:00:14,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:15,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 18:00:15,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:15,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:00:15,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:00:15,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258230221] [2024-11-08 18:00:15,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258230221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:00:15,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:00:15,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-08 18:00:15,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413047941] [2024-11-08 18:00:15,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:00:15,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 18:00:15,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:00:15,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 18:00:15,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-08 18:00:15,532 INFO L87 Difference]: Start difference. First operand 912 states and 1059 transitions. Second operand has 14 states, 12 states have (on average 7.833333333333333) internal successors, (94), 13 states have internal predecessors, (94), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:00:17,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:00:17,453 INFO L93 Difference]: Finished difference Result 925 states and 1075 transitions. [2024-11-08 18:00:17,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 18:00:17,454 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.833333333333333) internal successors, (94), 13 states have internal predecessors, (94), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2024-11-08 18:00:17,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:00:17,458 INFO L225 Difference]: With dead ends: 925 [2024-11-08 18:00:17,458 INFO L226 Difference]: Without dead ends: 925 [2024-11-08 18:00:17,458 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2024-11-08 18:00:17,459 INFO L432 NwaCegarLoop]: 493 mSDtfsCounter, 732 mSDsluCounter, 4303 mSDsCounter, 0 mSdLazyCounter, 3046 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 4796 SdHoareTripleChecker+Invalid, 3058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 3046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:00:17,459 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 4796 Invalid, 3058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 3046 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-08 18:00:17,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2024-11-08 18:00:17,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 921. [2024-11-08 18:00:17,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 689 states have (on average 1.5428156748911466) internal successors, (1063), 914 states have internal predecessors, (1063), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 18:00:17,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1070 transitions. [2024-11-08 18:00:17,478 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1070 transitions. Word has length 96 [2024-11-08 18:00:17,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:00:17,478 INFO L471 AbstractCegarLoop]: Abstraction has 921 states and 1070 transitions. [2024-11-08 18:00:17,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 7.833333333333333) internal successors, (94), 13 states have internal predecessors, (94), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:00:17,479 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1070 transitions. [2024-11-08 18:00:17,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-08 18:00:17,480 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:00:17,480 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:00:17,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-08 18:00:17,480 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr85REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:00:17,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:00:17,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1809290498, now seen corresponding path program 1 times [2024-11-08 18:00:17,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:00:17,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143180923] [2024-11-08 18:00:17,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:17,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:00:17,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:18,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 18:00:18,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:18,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:00:18,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:00:18,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143180923] [2024-11-08 18:00:18,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143180923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:00:18,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:00:18,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-08 18:00:18,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420708207] [2024-11-08 18:00:18,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:00:18,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 18:00:18,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:00:18,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 18:00:18,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:00:18,379 INFO L87 Difference]: Start difference. First operand 921 states and 1070 transitions. Second operand has 12 states, 11 states have (on average 8.545454545454545) internal successors, (94), 11 states have internal predecessors, (94), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:00:20,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:00:20,308 INFO L93 Difference]: Finished difference Result 924 states and 1074 transitions. [2024-11-08 18:00:20,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:00:20,309 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.545454545454545) internal successors, (94), 11 states have internal predecessors, (94), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2024-11-08 18:00:20,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:00:20,311 INFO L225 Difference]: With dead ends: 924 [2024-11-08 18:00:20,311 INFO L226 Difference]: Without dead ends: 924 [2024-11-08 18:00:20,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-11-08 18:00:20,312 INFO L432 NwaCegarLoop]: 497 mSDtfsCounter, 728 mSDsluCounter, 2862 mSDsCounter, 0 mSdLazyCounter, 2963 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 3359 SdHoareTripleChecker+Invalid, 2976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:00:20,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [732 Valid, 3359 Invalid, 2976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2963 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 18:00:20,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2024-11-08 18:00:20,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 921. [2024-11-08 18:00:20,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 689 states have (on average 1.5413642960812772) internal successors, (1062), 914 states have internal predecessors, (1062), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 18:00:20,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1069 transitions. [2024-11-08 18:00:20,328 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1069 transitions. Word has length 96 [2024-11-08 18:00:20,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:00:20,328 INFO L471 AbstractCegarLoop]: Abstraction has 921 states and 1069 transitions. [2024-11-08 18:00:20,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.545454545454545) internal successors, (94), 11 states have internal predecessors, (94), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:00:20,329 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1069 transitions. [2024-11-08 18:00:20,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-08 18:00:20,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:00:20,330 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:00:20,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-08 18:00:20,330 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr84REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:00:20,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:00:20,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1270191818, now seen corresponding path program 1 times [2024-11-08 18:00:20,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:00:20,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039642213] [2024-11-08 18:00:20,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:20,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:00:20,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:21,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 18:00:21,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:21,122 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:00:21,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:00:21,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039642213] [2024-11-08 18:00:21,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039642213] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:00:21,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [431004489] [2024-11-08 18:00:21,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:21,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:00:21,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:00:21,125 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:00:21,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 18:00:21,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:21,389 INFO L255 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-08 18:00:21,393 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:00:21,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-08 18:00:21,542 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-08 18:00:21,542 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-08 18:00:21,580 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 18:00:21,679 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-08 18:00:21,855 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:00:21,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-08 18:00:21,975 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:00:21,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-08 18:00:21,997 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-08 18:00:22,038 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:00:22,038 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:00:22,171 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1089 (Array Int Int)) (v_ArrVal_1086 (Array Int Int))) (= (select |c_#valid| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_1089))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1086)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) 1)) is different from false [2024-11-08 18:00:22,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [431004489] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:00:22,173 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:00:22,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9] total 21 [2024-11-08 18:00:22,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132833529] [2024-11-08 18:00:22,173 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:00:22,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-08 18:00:22,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:00:22,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-08 18:00:22,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=461, Unknown=15, NotChecked=44, Total=600 [2024-11-08 18:00:22,175 INFO L87 Difference]: Start difference. First operand 921 states and 1069 transitions. Second operand has 22 states, 19 states have (on average 8.105263157894736) internal successors, (154), 21 states have internal predecessors, (154), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:00:25,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:00:25,332 INFO L93 Difference]: Finished difference Result 923 states and 1073 transitions. [2024-11-08 18:00:25,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 18:00:25,332 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 8.105263157894736) internal successors, (154), 21 states have internal predecessors, (154), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 97 [2024-11-08 18:00:25,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:00:25,334 INFO L225 Difference]: With dead ends: 923 [2024-11-08 18:00:25,334 INFO L226 Difference]: Without dead ends: 923 [2024-11-08 18:00:25,335 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 93 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=108, Invalid=637, Unknown=15, NotChecked=52, Total=812 [2024-11-08 18:00:25,335 INFO L432 NwaCegarLoop]: 492 mSDtfsCounter, 697 mSDsluCounter, 6234 mSDsCounter, 0 mSdLazyCounter, 4271 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 701 SdHoareTripleChecker+Valid, 6726 SdHoareTripleChecker+Invalid, 4285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 4271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:00:25,336 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [701 Valid, 6726 Invalid, 4285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 4271 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-08 18:00:25,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2024-11-08 18:00:25,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 920. [2024-11-08 18:00:25,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 689 states have (on average 1.5399129172714079) internal successors, (1061), 913 states have internal predecessors, (1061), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 18:00:25,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1068 transitions. [2024-11-08 18:00:25,365 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1068 transitions. Word has length 97 [2024-11-08 18:00:25,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:00:25,366 INFO L471 AbstractCegarLoop]: Abstraction has 920 states and 1068 transitions. [2024-11-08 18:00:25,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 8.105263157894736) internal successors, (154), 21 states have internal predecessors, (154), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:00:25,366 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1068 transitions. [2024-11-08 18:00:25,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-08 18:00:25,367 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:00:25,367 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:00:25,388 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 18:00:25,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:00:25,572 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr85REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:00:25,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:00:25,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1270191819, now seen corresponding path program 1 times [2024-11-08 18:00:25,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:00:25,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034431206] [2024-11-08 18:00:25,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:25,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:00:25,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:26,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 18:00:26,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:26,645 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:00:26,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:00:26,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034431206] [2024-11-08 18:00:26,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034431206] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:00:26,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513727834] [2024-11-08 18:00:26,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:26,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:00:26,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:00:26,648 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:00:26,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 18:00:26,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:26,915 INFO L255 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-08 18:00:26,920 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:00:26,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-08 18:00:27,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 18:00:27,061 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-08 18:00:27,062 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-08 18:00:27,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 18:00:27,099 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-08 18:00:27,202 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-08 18:00:27,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-08 18:00:27,327 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:00:27,328 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-08 18:00:27,333 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-08 18:00:27,440 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:00:27,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-08 18:00:27,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-08 18:00:27,470 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-08 18:00:27,475 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-08 18:00:27,500 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:00:27,500 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:00:27,807 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1248 (Array Int Int)) (v_ArrVal_1247 (Array Int Int)) (v_ArrVal_1254 (Array Int Int)) (v_ArrVal_1253 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_1254))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (<= (+ (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_1253) .cse0 v_ArrVal_1247) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 8) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_1248) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_1247 (Array Int Int)) (v_ArrVal_1254 (Array Int Int)) (v_ArrVal_1253 (Array Int Int))) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_1253) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_1254) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1247) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 4))))) is different from false [2024-11-08 18:00:27,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513727834] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:00:27,809 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:00:27,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9] total 20 [2024-11-08 18:00:27,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51147936] [2024-11-08 18:00:27,810 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:00:27,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-08 18:00:27,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:00:27,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-08 18:00:27,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=495, Unknown=24, NotChecked=46, Total=650 [2024-11-08 18:00:27,811 INFO L87 Difference]: Start difference. First operand 920 states and 1068 transitions. Second operand has 21 states, 18 states have (on average 8.555555555555555) internal successors, (154), 20 states have internal predecessors, (154), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:00:29,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:00:29,906 INFO L93 Difference]: Finished difference Result 922 states and 1072 transitions. [2024-11-08 18:00:29,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 18:00:29,907 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 8.555555555555555) internal successors, (154), 20 states have internal predecessors, (154), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 97 [2024-11-08 18:00:29,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:00:29,909 INFO L225 Difference]: With dead ends: 922 [2024-11-08 18:00:29,910 INFO L226 Difference]: Without dead ends: 922 [2024-11-08 18:00:29,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 92 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=140, Invalid=768, Unknown=26, NotChecked=58, Total=992 [2024-11-08 18:00:29,911 INFO L432 NwaCegarLoop]: 495 mSDtfsCounter, 699 mSDsluCounter, 3349 mSDsCounter, 0 mSdLazyCounter, 3258 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 3844 SdHoareTripleChecker+Invalid, 3275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 3258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-08 18:00:29,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 3844 Invalid, 3275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 3258 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-08 18:00:29,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2024-11-08 18:00:29,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 910. [2024-11-08 18:00:29,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 681 states have (on average 1.5433186490455213) internal successors, (1051), 904 states have internal predecessors, (1051), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:00:29,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1057 transitions. [2024-11-08 18:00:29,926 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1057 transitions. Word has length 97 [2024-11-08 18:00:29,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:00:29,926 INFO L471 AbstractCegarLoop]: Abstraction has 910 states and 1057 transitions. [2024-11-08 18:00:29,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 8.555555555555555) internal successors, (154), 20 states have internal predecessors, (154), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:00:29,927 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1057 transitions. [2024-11-08 18:00:29,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-08 18:00:29,928 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:00:29,928 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:00:29,950 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 18:00:30,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:00:30,128 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr88REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:00:30,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:00:30,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1266948618, now seen corresponding path program 1 times [2024-11-08 18:00:30,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:00:30,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143418840] [2024-11-08 18:00:30,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:30,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:00:30,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:30,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 18:00:30,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:30,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:00:30,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:00:30,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143418840] [2024-11-08 18:00:30,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143418840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:00:30,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:00:30,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-08 18:00:30,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870185894] [2024-11-08 18:00:30,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:00:30,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 18:00:30,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:00:30,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 18:00:30,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:00:30,848 INFO L87 Difference]: Start difference. First operand 910 states and 1057 transitions. Second operand has 15 states, 13 states have (on average 7.461538461538462) internal successors, (97), 14 states have internal predecessors, (97), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:00:32,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:00:32,478 INFO L93 Difference]: Finished difference Result 926 states and 1076 transitions. [2024-11-08 18:00:32,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 18:00:32,478 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 7.461538461538462) internal successors, (97), 14 states have internal predecessors, (97), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 99 [2024-11-08 18:00:32,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:00:32,480 INFO L225 Difference]: With dead ends: 926 [2024-11-08 18:00:32,480 INFO L226 Difference]: Without dead ends: 926 [2024-11-08 18:00:32,480 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=454, Unknown=0, NotChecked=0, Total=552 [2024-11-08 18:00:32,481 INFO L432 NwaCegarLoop]: 492 mSDtfsCounter, 735 mSDsluCounter, 3818 mSDsCounter, 0 mSdLazyCounter, 2754 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 739 SdHoareTripleChecker+Valid, 4310 SdHoareTripleChecker+Invalid, 2767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:00:32,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [739 Valid, 4310 Invalid, 2767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2754 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 18:00:32,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2024-11-08 18:00:32,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 922. [2024-11-08 18:00:32,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 692 states have (on average 1.5375722543352601) internal successors, (1064), 915 states have internal predecessors, (1064), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 18:00:32,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1071 transitions. [2024-11-08 18:00:32,495 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1071 transitions. Word has length 99 [2024-11-08 18:00:32,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:00:32,495 INFO L471 AbstractCegarLoop]: Abstraction has 922 states and 1071 transitions. [2024-11-08 18:00:32,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 7.461538461538462) internal successors, (97), 14 states have internal predecessors, (97), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:00:32,495 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1071 transitions. [2024-11-08 18:00:32,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-08 18:00:32,496 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:00:32,497 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:00:32,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-08 18:00:32,497 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr89REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:00:32,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:00:32,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1266948619, now seen corresponding path program 1 times [2024-11-08 18:00:32,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:00:32,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956616108] [2024-11-08 18:00:32,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:32,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:00:32,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:33,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 18:00:33,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:33,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:00:33,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:00:33,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956616108] [2024-11-08 18:00:33,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956616108] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:00:33,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:00:33,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 18:00:33,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622954861] [2024-11-08 18:00:33,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:00:33,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 18:00:33,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:00:33,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 18:00:33,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:00:33,465 INFO L87 Difference]: Start difference. First operand 922 states and 1071 transitions. Second operand has 13 states, 12 states have (on average 8.083333333333334) internal successors, (97), 12 states have internal predecessors, (97), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:00:35,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:00:35,289 INFO L93 Difference]: Finished difference Result 925 states and 1075 transitions. [2024-11-08 18:00:35,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 18:00:35,290 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.083333333333334) internal successors, (97), 12 states have internal predecessors, (97), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 99 [2024-11-08 18:00:35,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:00:35,292 INFO L225 Difference]: With dead ends: 925 [2024-11-08 18:00:35,295 INFO L226 Difference]: Without dead ends: 925 [2024-11-08 18:00:35,295 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2024-11-08 18:00:35,296 INFO L432 NwaCegarLoop]: 496 mSDtfsCounter, 730 mSDsluCounter, 2934 mSDsCounter, 0 mSdLazyCounter, 2824 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 734 SdHoareTripleChecker+Valid, 3430 SdHoareTripleChecker+Invalid, 2837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:00:35,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [734 Valid, 3430 Invalid, 2837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2824 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-08 18:00:35,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2024-11-08 18:00:35,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 922. [2024-11-08 18:00:35,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 692 states have (on average 1.5361271676300579) internal successors, (1063), 915 states have internal predecessors, (1063), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 18:00:35,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1070 transitions. [2024-11-08 18:00:35,314 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1070 transitions. Word has length 99 [2024-11-08 18:00:35,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:00:35,315 INFO L471 AbstractCegarLoop]: Abstraction has 922 states and 1070 transitions. [2024-11-08 18:00:35,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.083333333333334) internal successors, (97), 12 states have internal predecessors, (97), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:00:35,315 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1070 transitions. [2024-11-08 18:00:35,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-08 18:00:35,316 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:00:35,317 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:00:35,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-08 18:00:35,317 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr88REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:00:35,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:00:35,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1623211805, now seen corresponding path program 1 times [2024-11-08 18:00:35,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:00:35,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984271172] [2024-11-08 18:00:35,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:35,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:00:35,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:36,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 18:00:36,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:36,081 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:00:36,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:00:36,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984271172] [2024-11-08 18:00:36,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984271172] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:00:36,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [460472776] [2024-11-08 18:00:36,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:36,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:00:36,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:00:36,084 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:00:36,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 18:00:36,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:36,397 INFO L255 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-08 18:00:36,401 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:00:36,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-08 18:00:36,528 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-08 18:00:36,529 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-08 18:00:36,570 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 18:00:36,664 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-08 18:00:36,832 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:00:36,833 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-08 18:00:36,942 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:00:36,942 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-08 18:00:37,011 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:00:37,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-08 18:00:37,035 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-08 18:00:37,069 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:00:37,069 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:00:37,080 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1566 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem57#1.base| v_ArrVal_1566) |c_ULTIMATE.start_main_~user~0#1.base|) (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) 1)) is different from false [2024-11-08 18:00:37,124 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1566 (Array Int Int)) (v_ArrVal_1565 (Array Int Int))) (= (select |c_#valid| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_1565))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1566)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) 1)) is different from false [2024-11-08 18:00:37,133 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1566 (Array Int Int)) (v_ArrVal_1565 (Array Int Int))) (= (select |c_#valid| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1565))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1566)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) 1)) is different from false [2024-11-08 18:00:37,166 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1569 (Array Int Int)) (v_ArrVal_1566 (Array Int Int)) (v_ArrVal_1565 (Array Int Int))) (= (select |c_#valid| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_1569))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1565)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1566)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) 1)) is different from false [2024-11-08 18:00:37,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [460472776] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:00:37,167 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:00:37,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10] total 23 [2024-11-08 18:00:37,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637785144] [2024-11-08 18:00:37,167 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:00:37,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-08 18:00:37,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:00:37,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-08 18:00:37,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=509, Unknown=10, NotChecked=196, Total=812 [2024-11-08 18:00:37,169 INFO L87 Difference]: Start difference. First operand 922 states and 1070 transitions. Second operand has 24 states, 21 states have (on average 7.619047619047619) internal successors, (160), 23 states have internal predecessors, (160), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:00:40,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:00:40,010 INFO L93 Difference]: Finished difference Result 924 states and 1074 transitions. [2024-11-08 18:00:40,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 18:00:40,011 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 7.619047619047619) internal successors, (160), 23 states have internal predecessors, (160), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 100 [2024-11-08 18:00:40,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:00:40,012 INFO L225 Difference]: With dead ends: 924 [2024-11-08 18:00:40,013 INFO L226 Difference]: Without dead ends: 924 [2024-11-08 18:00:40,013 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 97 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=125, Invalid=693, Unknown=10, NotChecked=228, Total=1056 [2024-11-08 18:00:40,013 INFO L432 NwaCegarLoop]: 491 mSDtfsCounter, 690 mSDsluCounter, 6705 mSDsCounter, 0 mSdLazyCounter, 4597 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 7196 SdHoareTripleChecker+Invalid, 4609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 4597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:00:40,014 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 7196 Invalid, 4609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 4597 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-08 18:00:40,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2024-11-08 18:00:40,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 921. [2024-11-08 18:00:40,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 692 states have (on average 1.5346820809248556) internal successors, (1062), 914 states have internal predecessors, (1062), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 18:00:40,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1069 transitions. [2024-11-08 18:00:40,027 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1069 transitions. Word has length 100 [2024-11-08 18:00:40,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:00:40,027 INFO L471 AbstractCegarLoop]: Abstraction has 921 states and 1069 transitions. [2024-11-08 18:00:40,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 7.619047619047619) internal successors, (160), 23 states have internal predecessors, (160), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:00:40,028 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1069 transitions. [2024-11-08 18:00:40,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-08 18:00:40,029 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:00:40,029 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:00:40,051 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 18:00:40,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:00:40,230 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr89REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:00:40,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:00:40,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1623211806, now seen corresponding path program 1 times [2024-11-08 18:00:40,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:00:40,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46094553] [2024-11-08 18:00:40,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:40,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:00:40,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:41,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 18:00:41,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:41,357 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:00:41,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:00:41,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46094553] [2024-11-08 18:00:41,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46094553] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:00:41,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389475451] [2024-11-08 18:00:41,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:41,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:00:41,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:00:41,359 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:00:41,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 18:00:41,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:41,678 INFO L255 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-08 18:00:41,684 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:00:41,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-08 18:00:41,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 18:00:41,808 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-08 18:00:41,809 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-08 18:00:41,843 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 18:00:41,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 18:00:41,952 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-08 18:00:41,956 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-08 18:00:42,073 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:00:42,074 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-08 18:00:42,078 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-08 18:00:42,172 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:00:42,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-08 18:00:42,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-08 18:00:42,260 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:00:42,260 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-08 18:00:42,266 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 22 [2024-11-08 18:00:42,327 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-08 18:00:42,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 12 [2024-11-08 18:00:42,364 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:00:42,365 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:00:42,604 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1739 (Array Int Int))) (let ((.cse0 (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_1739))) (or (< (+ (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 4) 0) (forall ((v_ArrVal_1742 (Array Int Int)) (v_ArrVal_1741 (Array Int Int)) (v_ArrVal_1740 (Array Int Int))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_1740))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (<= (+ 12 (select (select (store .cse0 .cse2 v_ArrVal_1742) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse3 .cse2 v_ArrVal_1741) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))))))))) (forall ((v_ArrVal_1739 (Array Int Int))) (let ((.cse4 (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_1739))) (or (forall ((v_ArrVal_1742 (Array Int Int)) (v_ArrVal_1740 (Array Int Int))) (<= 0 (+ 8 (select (select (store .cse4 (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_1740) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1742) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (< (+ (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 4) 0)))))) is different from false [2024-11-08 18:00:43,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [389475451] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:00:43,017 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:00:43,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 23 [2024-11-08 18:00:43,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396757748] [2024-11-08 18:00:43,017 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:00:43,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-08 18:00:43,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:00:43,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-08 18:00:43,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=737, Unknown=23, NotChecked=56, Total=930 [2024-11-08 18:00:43,021 INFO L87 Difference]: Start difference. First operand 921 states and 1069 transitions. Second operand has 24 states, 21 states have (on average 7.619047619047619) internal successors, (160), 23 states have internal predecessors, (160), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:00:45,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:00:45,915 INFO L93 Difference]: Finished difference Result 923 states and 1073 transitions. [2024-11-08 18:00:45,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 18:00:45,915 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 7.619047619047619) internal successors, (160), 23 states have internal predecessors, (160), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 100 [2024-11-08 18:00:45,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:00:45,917 INFO L225 Difference]: With dead ends: 923 [2024-11-08 18:00:45,917 INFO L226 Difference]: Without dead ends: 923 [2024-11-08 18:00:45,918 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 95 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=191, Invalid=1121, Unknown=24, NotChecked=70, Total=1406 [2024-11-08 18:00:45,918 INFO L432 NwaCegarLoop]: 494 mSDtfsCounter, 698 mSDsluCounter, 4501 mSDsCounter, 0 mSdLazyCounter, 4475 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 4995 SdHoareTripleChecker+Invalid, 4492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 4475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:00:45,919 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [702 Valid, 4995 Invalid, 4492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 4475 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-08 18:00:45,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2024-11-08 18:00:45,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 908. [2024-11-08 18:00:45,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 681 states have (on average 1.540381791483113) internal successors, (1049), 902 states have internal predecessors, (1049), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:00:45,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1055 transitions. [2024-11-08 18:00:45,932 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1055 transitions. Word has length 100 [2024-11-08 18:00:45,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:00:45,933 INFO L471 AbstractCegarLoop]: Abstraction has 908 states and 1055 transitions. [2024-11-08 18:00:45,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 7.619047619047619) internal successors, (160), 23 states have internal predecessors, (160), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:00:45,933 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1055 transitions. [2024-11-08 18:00:45,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-08 18:00:45,934 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:00:45,934 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:00:45,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-08 18:00:46,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:00:46,135 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr92REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:00:46,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:00:46,136 INFO L85 PathProgramCache]: Analyzing trace with hash -505671932, now seen corresponding path program 1 times [2024-11-08 18:00:46,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:00:46,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966707297] [2024-11-08 18:00:46,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:46,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:00:46,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:46,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 18:00:46,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:46,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:00:46,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:00:46,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966707297] [2024-11-08 18:00:46,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966707297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:00:46,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:00:46,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-08 18:00:46,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477949064] [2024-11-08 18:00:46,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:00:46,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 18:00:46,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:00:46,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 18:00:46,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-08 18:00:46,723 INFO L87 Difference]: Start difference. First operand 908 states and 1055 transitions. Second operand has 14 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 13 states have internal predecessors, (100), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:00:48,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:00:48,298 INFO L93 Difference]: Finished difference Result 927 states and 1077 transitions. [2024-11-08 18:00:48,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 18:00:48,299 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 13 states have internal predecessors, (100), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 102 [2024-11-08 18:00:48,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:00:48,300 INFO L225 Difference]: With dead ends: 927 [2024-11-08 18:00:48,300 INFO L226 Difference]: Without dead ends: 927 [2024-11-08 18:00:48,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2024-11-08 18:00:48,301 INFO L432 NwaCegarLoop]: 494 mSDtfsCounter, 737 mSDsluCounter, 3861 mSDsCounter, 0 mSdLazyCounter, 2756 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 4355 SdHoareTripleChecker+Invalid, 2769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:00:48,301 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [741 Valid, 4355 Invalid, 2769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2756 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 18:00:48,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2024-11-08 18:00:48,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 923. [2024-11-08 18:00:48,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 923 states, 695 states have (on average 1.5323741007194245) internal successors, (1065), 916 states have internal predecessors, (1065), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 18:00:48,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1072 transitions. [2024-11-08 18:00:48,315 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1072 transitions. Word has length 102 [2024-11-08 18:00:48,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:00:48,315 INFO L471 AbstractCegarLoop]: Abstraction has 923 states and 1072 transitions. [2024-11-08 18:00:48,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 13 states have internal predecessors, (100), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:00:48,316 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1072 transitions. [2024-11-08 18:00:48,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-08 18:00:48,316 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:00:48,317 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:00:48,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-08 18:00:48,317 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr93REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:00:48,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:00:48,318 INFO L85 PathProgramCache]: Analyzing trace with hash -505671931, now seen corresponding path program 1 times [2024-11-08 18:00:48,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:00:48,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199834482] [2024-11-08 18:00:48,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:48,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:00:48,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:49,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 18:00:49,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:49,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:00:49,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:00:49,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199834482] [2024-11-08 18:00:49,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199834482] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:00:49,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:00:49,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-08 18:00:49,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891726132] [2024-11-08 18:00:49,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:00:49,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 18:00:49,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:00:49,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 18:00:49,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-08 18:00:49,416 INFO L87 Difference]: Start difference. First operand 923 states and 1072 transitions. Second operand has 14 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 13 states have internal predecessors, (100), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:00:51,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:00:51,304 INFO L93 Difference]: Finished difference Result 926 states and 1076 transitions. [2024-11-08 18:00:51,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 18:00:51,306 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 13 states have internal predecessors, (100), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 102 [2024-11-08 18:00:51,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:00:51,308 INFO L225 Difference]: With dead ends: 926 [2024-11-08 18:00:51,308 INFO L226 Difference]: Without dead ends: 926 [2024-11-08 18:00:51,308 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2024-11-08 18:00:51,308 INFO L432 NwaCegarLoop]: 495 mSDtfsCounter, 730 mSDsluCounter, 2868 mSDsCounter, 0 mSdLazyCounter, 2959 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 734 SdHoareTripleChecker+Valid, 3363 SdHoareTripleChecker+Invalid, 2972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:00:51,309 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [734 Valid, 3363 Invalid, 2972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2959 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-08 18:00:51,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2024-11-08 18:00:51,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 923. [2024-11-08 18:00:51,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 923 states, 695 states have (on average 1.530935251798561) internal successors, (1064), 916 states have internal predecessors, (1064), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 18:00:51,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1071 transitions. [2024-11-08 18:00:51,321 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1071 transitions. Word has length 102 [2024-11-08 18:00:51,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:00:51,321 INFO L471 AbstractCegarLoop]: Abstraction has 923 states and 1071 transitions. [2024-11-08 18:00:51,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 13 states have internal predecessors, (100), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:00:51,322 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1071 transitions. [2024-11-08 18:00:51,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-08 18:00:51,323 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:00:51,323 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:00:51,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-08 18:00:51,323 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr92REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:00:51,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:00:51,324 INFO L85 PathProgramCache]: Analyzing trace with hash 66743569, now seen corresponding path program 1 times [2024-11-08 18:00:51,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:00:51,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446675545] [2024-11-08 18:00:51,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:51,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:00:51,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:52,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 18:00:52,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:52,072 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:00:52,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:00:52,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446675545] [2024-11-08 18:00:52,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446675545] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:00:52,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494481608] [2024-11-08 18:00:52,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:52,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:00:52,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:00:52,074 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:00:52,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 18:00:52,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:52,389 INFO L255 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-08 18:00:52,394 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:00:52,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-08 18:00:52,527 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-08 18:00:52,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-08 18:00:52,565 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 18:00:52,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-08 18:00:52,821 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:00:52,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-08 18:00:52,921 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:00:52,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-08 18:00:52,984 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:00:52,984 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-08 18:00:53,051 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:00:53,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-08 18:00:53,070 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-08 18:00:53,116 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:00:53,116 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:00:53,127 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2085 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem58#1.base| v_ArrVal_2085) |c_ULTIMATE.start_main_~user~0#1.base|) (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) 1)) is different from false [2024-11-08 18:00:53,171 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2085 (Array Int Int)) (v_ArrVal_2084 (Array Int Int))) (= (select |c_#valid| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem57#1.base| v_ArrVal_2084))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2085)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) 1)) is different from false [2024-11-08 18:00:53,240 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2083 (Array Int Int)) (v_ArrVal_2085 (Array Int Int)) (v_ArrVal_2084 (Array Int Int))) (= (select |c_#valid| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_2083))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2084)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2085)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) 1)) is different from false [2024-11-08 18:00:53,248 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2083 (Array Int Int)) (v_ArrVal_2085 (Array Int Int)) (v_ArrVal_2084 (Array Int Int))) (= (select |c_#valid| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2083))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2084)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2085)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) 1)) is different from false [2024-11-08 18:00:53,282 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2083 (Array Int Int)) (v_ArrVal_2088 (Array Int Int)) (v_ArrVal_2085 (Array Int Int)) (v_ArrVal_2084 (Array Int Int))) (= (select |c_#valid| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_2088))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2083)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2084)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2085)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) 1)) is different from false [2024-11-08 18:00:53,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [494481608] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:00:53,284 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:00:53,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11] total 25 [2024-11-08 18:00:53,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296227113] [2024-11-08 18:00:53,284 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:00:53,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-08 18:00:53,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:00:53,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-08 18:00:53,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=636, Unknown=16, NotChecked=280, Total=1056 [2024-11-08 18:00:53,286 INFO L87 Difference]: Start difference. First operand 923 states and 1071 transitions. Second operand has 26 states, 23 states have (on average 7.217391304347826) internal successors, (166), 25 states have internal predecessors, (166), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:00:55,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:00:55,577 INFO L93 Difference]: Finished difference Result 925 states and 1075 transitions. [2024-11-08 18:00:55,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-08 18:00:55,578 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 23 states have (on average 7.217391304347826) internal successors, (166), 25 states have internal predecessors, (166), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 103 [2024-11-08 18:00:55,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:00:55,579 INFO L225 Difference]: With dead ends: 925 [2024-11-08 18:00:55,579 INFO L226 Difference]: Without dead ends: 925 [2024-11-08 18:00:55,580 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 101 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=153, Invalid=843, Unknown=16, NotChecked=320, Total=1332 [2024-11-08 18:00:55,580 INFO L432 NwaCegarLoop]: 490 mSDtfsCounter, 685 mSDsluCounter, 4796 mSDsCounter, 0 mSdLazyCounter, 3408 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 5286 SdHoareTripleChecker+Invalid, 3423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:00:55,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [689 Valid, 5286 Invalid, 3423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 3408 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-08 18:00:55,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2024-11-08 18:00:55,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 922. [2024-11-08 18:00:55,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 695 states have (on average 1.5294964028776978) internal successors, (1063), 915 states have internal predecessors, (1063), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 18:00:55,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1070 transitions. [2024-11-08 18:00:55,592 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1070 transitions. Word has length 103 [2024-11-08 18:00:55,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:00:55,593 INFO L471 AbstractCegarLoop]: Abstraction has 922 states and 1070 transitions. [2024-11-08 18:00:55,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 23 states have (on average 7.217391304347826) internal successors, (166), 25 states have internal predecessors, (166), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:00:55,593 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1070 transitions. [2024-11-08 18:00:55,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-08 18:00:55,594 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:00:55,594 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:00:55,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-08 18:00:55,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:00:55,795 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr93REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:00:55,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:00:55,795 INFO L85 PathProgramCache]: Analyzing trace with hash 66743570, now seen corresponding path program 1 times [2024-11-08 18:00:55,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:00:55,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326499025] [2024-11-08 18:00:55,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:55,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:00:55,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:56,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 18:00:56,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:56,931 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:00:56,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:00:56,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326499025] [2024-11-08 18:00:56,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326499025] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:00:56,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218501410] [2024-11-08 18:00:56,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:56,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:00:56,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:00:56,933 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:00:56,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-08 18:00:57,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:57,238 INFO L255 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-08 18:00:57,242 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:00:57,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-08 18:00:57,359 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-08 18:00:57,359 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-08 18:00:57,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 18:00:57,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-08 18:00:57,384 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 18:00:57,452 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-08 18:00:57,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-08 18:00:57,570 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:00:57,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-08 18:00:57,576 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-08 18:00:57,663 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:00:57,664 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-08 18:00:57,668 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-08 18:00:57,728 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:00:57,728 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-08 18:00:57,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-08 18:00:57,802 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:00:57,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-08 18:00:57,807 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-08 18:00:57,830 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-08 18:00:57,838 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-08 18:00:57,841 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:00:57,841 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:00:58,022 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_2275 (Array Int Int)) (v_ArrVal_2274 (Array Int Int)) (v_ArrVal_2273 (Array Int Int)) (v_ArrVal_2272 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem57#1.base| v_ArrVal_2272))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (<= (+ (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem57#1.base| v_ArrVal_2273) .cse0 v_ArrVal_2274) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 24) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_2275) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_2274 (Array Int Int)) (v_ArrVal_2273 (Array Int Int)) (v_ArrVal_2272 (Array Int Int))) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem57#1.base| v_ArrVal_2273) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem57#1.base| v_ArrVal_2272) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2274) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 20))))) is different from false [2024-11-08 18:00:58,130 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_2270 (Array Int Int)) (v_ArrVal_2274 (Array Int Int)) (v_ArrVal_2273 (Array Int Int)) (v_ArrVal_2272 (Array Int Int)) (v_ArrVal_2271 (Array Int Int))) (<= 0 (+ (select (select (let ((.cse1 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_2271))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_2270) .cse0 v_ArrVal_2273) (select (select (store .cse1 .cse0 v_ArrVal_2272) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_2274))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) 20))) (forall ((v_ArrVal_2270 (Array Int Int)) (v_ArrVal_2275 (Array Int Int)) (v_ArrVal_2274 (Array Int Int)) (v_ArrVal_2273 (Array Int Int)) (v_ArrVal_2272 (Array Int Int)) (v_ArrVal_2271 (Array Int Int))) (let ((.cse6 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_2271))) (let ((.cse3 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse5 (store .cse6 .cse3 v_ArrVal_2272))) (let ((.cse4 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (<= (+ (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_2270) .cse3 v_ArrVal_2273) .cse4 v_ArrVal_2274) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) 24) (select |c_#length| (select (select (store .cse5 .cse4 v_ArrVal_2275) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))))))) is different from false [2024-11-08 18:00:59,799 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_2281 (Array Int Int)) (v_ArrVal_2270 (Array Int Int)) (v_ArrVal_2280 (Array Int Int)) (v_ArrVal_2274 (Array Int Int)) (v_ArrVal_2273 (Array Int Int)) (v_ArrVal_2272 (Array Int Int)) (v_ArrVal_2271 (Array Int Int))) (<= 0 (+ (select (select (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_2280))) (let ((.cse0 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse2 (store .cse4 .cse0 v_ArrVal_2271))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_2281) .cse0 v_ArrVal_2270) .cse1 v_ArrVal_2273) (select (select (store .cse2 .cse1 v_ArrVal_2272) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_2274))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) 20))) (forall ((v_ArrVal_2281 (Array Int Int)) (v_ArrVal_2270 (Array Int Int)) (v_ArrVal_2280 (Array Int Int)) (v_ArrVal_2275 (Array Int Int)) (v_ArrVal_2274 (Array Int Int)) (v_ArrVal_2273 (Array Int Int)) (v_ArrVal_2272 (Array Int Int)) (v_ArrVal_2271 (Array Int Int))) (let ((.cse10 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_2280))) (let ((.cse5 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse9 (store .cse10 .cse5 v_ArrVal_2271))) (let ((.cse6 (select (select .cse9 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse8 (store .cse9 .cse6 v_ArrVal_2272))) (let ((.cse7 (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (<= (+ (select (select (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_2281) .cse5 v_ArrVal_2270) .cse6 v_ArrVal_2273) .cse7 v_ArrVal_2274) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) 24) (select |c_#length| (select (select (store .cse8 .cse7 v_ArrVal_2275) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))))) is different from false [2024-11-08 18:00:59,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218501410] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:00:59,802 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:00:59,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11] total 21 [2024-11-08 18:00:59,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787417661] [2024-11-08 18:00:59,802 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:00:59,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-08 18:00:59,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:00:59,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-08 18:00:59,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=599, Unknown=44, NotChecked=162, Total=930 [2024-11-08 18:00:59,804 INFO L87 Difference]: Start difference. First operand 922 states and 1070 transitions. Second operand has 22 states, 19 states have (on average 8.263157894736842) internal successors, (157), 21 states have internal predecessors, (157), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:01:03,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:01:03,803 INFO L93 Difference]: Finished difference Result 924 states and 1074 transitions. [2024-11-08 18:01:03,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 18:01:03,804 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 8.263157894736842) internal successors, (157), 21 states have internal predecessors, (157), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 103 [2024-11-08 18:01:03,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:01:03,806 INFO L225 Difference]: With dead ends: 924 [2024-11-08 18:01:03,806 INFO L226 Difference]: Without dead ends: 924 [2024-11-08 18:01:03,806 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 103 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=206, Invalid=1020, Unknown=46, NotChecked=210, Total=1482 [2024-11-08 18:01:03,807 INFO L432 NwaCegarLoop]: 493 mSDtfsCounter, 693 mSDsluCounter, 3737 mSDsCounter, 0 mSdLazyCounter, 3663 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 4230 SdHoareTripleChecker+Invalid, 3678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:01:03,807 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [697 Valid, 4230 Invalid, 3678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 3663 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-08 18:01:03,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2024-11-08 18:01:03,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 906. [2024-11-08 18:01:03,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 906 states, 681 states have (on average 1.5374449339207048) internal successors, (1047), 900 states have internal predecessors, (1047), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:01:03,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 906 states to 906 states and 1053 transitions. [2024-11-08 18:01:03,819 INFO L78 Accepts]: Start accepts. Automaton has 906 states and 1053 transitions. Word has length 103 [2024-11-08 18:01:03,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:01:03,820 INFO L471 AbstractCegarLoop]: Abstraction has 906 states and 1053 transitions. [2024-11-08 18:01:03,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 8.263157894736842) internal successors, (157), 21 states have internal predecessors, (157), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:01:03,820 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states and 1053 transitions. [2024-11-08 18:01:03,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 18:01:03,821 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:01:03,821 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:01:03,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-08 18:01:04,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:01:04,022 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr96REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:01:04,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:01:04,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1755973062, now seen corresponding path program 1 times [2024-11-08 18:01:04,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:01:04,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75849252] [2024-11-08 18:01:04,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:01:04,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:01:04,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:05,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 18:01:05,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:05,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:01:05,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:01:05,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75849252] [2024-11-08 18:01:05,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75849252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:01:05,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:01:05,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-08 18:01:05,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941109932] [2024-11-08 18:01:05,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:01:05,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-08 18:01:05,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:01:05,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-08 18:01:05,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2024-11-08 18:01:05,122 INFO L87 Difference]: Start difference. First operand 906 states and 1053 transitions. Second operand has 17 states, 15 states have (on average 6.933333333333334) internal successors, (104), 16 states have internal predecessors, (104), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:01:07,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:01:07,965 INFO L93 Difference]: Finished difference Result 929 states and 1079 transitions. [2024-11-08 18:01:07,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-08 18:01:07,966 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 6.933333333333334) internal successors, (104), 16 states have internal predecessors, (104), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 106 [2024-11-08 18:01:07,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:01:07,968 INFO L225 Difference]: With dead ends: 929 [2024-11-08 18:01:07,968 INFO L226 Difference]: Without dead ends: 929 [2024-11-08 18:01:07,969 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=126, Invalid=630, Unknown=0, NotChecked=0, Total=756 [2024-11-08 18:01:07,969 INFO L432 NwaCegarLoop]: 490 mSDtfsCounter, 740 mSDsluCounter, 4313 mSDsCounter, 0 mSdLazyCounter, 3101 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 744 SdHoareTripleChecker+Valid, 4803 SdHoareTripleChecker+Invalid, 3117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 3101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:01:07,970 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [744 Valid, 4803 Invalid, 3117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 3101 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-08 18:01:07,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 929 states. [2024-11-08 18:01:07,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 929 to 925. [2024-11-08 18:01:07,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 699 states have (on average 1.5264663805436338) internal successors, (1067), 918 states have internal predecessors, (1067), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 18:01:07,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1074 transitions. [2024-11-08 18:01:07,983 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1074 transitions. Word has length 106 [2024-11-08 18:01:07,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:01:07,984 INFO L471 AbstractCegarLoop]: Abstraction has 925 states and 1074 transitions. [2024-11-08 18:01:07,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 6.933333333333334) internal successors, (104), 16 states have internal predecessors, (104), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:01:07,984 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1074 transitions. [2024-11-08 18:01:07,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 18:01:07,985 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:01:07,985 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:01:07,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-08 18:01:07,986 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr97REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:01:07,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:01:07,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1755973063, now seen corresponding path program 1 times [2024-11-08 18:01:07,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:01:07,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625716507] [2024-11-08 18:01:07,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:01:07,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:01:08,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:09,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 18:01:09,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:09,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:01:09,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:01:09,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625716507] [2024-11-08 18:01:09,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625716507] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:01:09,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:01:09,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-08 18:01:09,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913492516] [2024-11-08 18:01:09,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:01:09,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-08 18:01:09,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:01:09,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-08 18:01:09,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2024-11-08 18:01:09,548 INFO L87 Difference]: Start difference. First operand 925 states and 1074 transitions. Second operand has 18 states, 16 states have (on average 6.5) internal successors, (104), 17 states have internal predecessors, (104), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:01:13,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:01:13,711 INFO L93 Difference]: Finished difference Result 928 states and 1078 transitions. [2024-11-08 18:01:13,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-08 18:01:13,711 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 6.5) internal successors, (104), 17 states have internal predecessors, (104), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 106 [2024-11-08 18:01:13,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:01:13,713 INFO L225 Difference]: With dead ends: 928 [2024-11-08 18:01:13,713 INFO L226 Difference]: Without dead ends: 928 [2024-11-08 18:01:13,713 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=130, Invalid=682, Unknown=0, NotChecked=0, Total=812 [2024-11-08 18:01:13,714 INFO L432 NwaCegarLoop]: 491 mSDtfsCounter, 735 mSDsluCounter, 4537 mSDsCounter, 0 mSdLazyCounter, 4368 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 739 SdHoareTripleChecker+Valid, 5028 SdHoareTripleChecker+Invalid, 4386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 4368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:01:13,714 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [739 Valid, 5028 Invalid, 4386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 4368 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-08 18:01:13,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2024-11-08 18:01:13,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 925. [2024-11-08 18:01:13,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 699 states have (on average 1.5250357653791131) internal successors, (1066), 918 states have internal predecessors, (1066), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 18:01:13,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1073 transitions. [2024-11-08 18:01:13,726 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1073 transitions. Word has length 106 [2024-11-08 18:01:13,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:01:13,727 INFO L471 AbstractCegarLoop]: Abstraction has 925 states and 1073 transitions. [2024-11-08 18:01:13,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 6.5) internal successors, (104), 17 states have internal predecessors, (104), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:01:13,727 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1073 transitions. [2024-11-08 18:01:13,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-08 18:01:13,728 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:01:13,728 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:01:13,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-08 18:01:13,728 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr96REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:01:13,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:01:13,729 INFO L85 PathProgramCache]: Analyzing trace with hash 2032178515, now seen corresponding path program 1 times [2024-11-08 18:01:13,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:01:13,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022304586] [2024-11-08 18:01:13,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:01:13,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:01:13,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:14,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 18:01:14,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:14,753 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:01:14,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:01:14,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022304586] [2024-11-08 18:01:14,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022304586] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:01:14,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [775623681] [2024-11-08 18:01:14,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:01:14,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:01:14,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:01:14,755 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:01:14,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-08 18:01:15,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:15,109 INFO L255 TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-08 18:01:15,113 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:01:15,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-08 18:01:15,287 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-08 18:01:15,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-08 18:01:15,328 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 18:01:15,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-08 18:01:15,646 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:01:15,646 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-08 18:01:15,767 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:01:15,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-08 18:01:15,847 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:01:15,847 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-08 18:01:15,951 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:01:15,952 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-08 18:01:16,032 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:01:16,032 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-08 18:01:16,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-08 18:01:16,139 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-11-08 18:01:16,139 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2024-11-08 18:01:16,147 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:01:16,147 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:01:17,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [775623681] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:01:17,249 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:01:17,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12] total 26 [2024-11-08 18:01:17,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723171144] [2024-11-08 18:01:17,249 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:01:17,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-08 18:01:17,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:01:17,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-08 18:01:17,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=1169, Unknown=46, NotChecked=0, Total=1406 [2024-11-08 18:01:17,251 INFO L87 Difference]: Start difference. First operand 925 states and 1073 transitions. Second operand has 27 states, 24 states have (on average 7.25) internal successors, (174), 26 states have internal predecessors, (174), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:01:21,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:01:21,302 INFO L93 Difference]: Finished difference Result 927 states and 1077 transitions. [2024-11-08 18:01:21,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 18:01:21,303 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 24 states have (on average 7.25) internal successors, (174), 26 states have internal predecessors, (174), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 107 [2024-11-08 18:01:21,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:01:21,304 INFO L225 Difference]: With dead ends: 927 [2024-11-08 18:01:21,304 INFO L226 Difference]: Without dead ends: 927 [2024-11-08 18:01:21,305 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 107 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 502 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=223, Invalid=1453, Unknown=46, NotChecked=0, Total=1722 [2024-11-08 18:01:21,306 INFO L432 NwaCegarLoop]: 489 mSDtfsCounter, 678 mSDsluCounter, 6192 mSDsCounter, 0 mSdLazyCounter, 4302 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 6681 SdHoareTripleChecker+Invalid, 4315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 4302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:01:21,306 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [682 Valid, 6681 Invalid, 4315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 4302 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-08 18:01:21,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2024-11-08 18:01:21,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 924. [2024-11-08 18:01:21,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 924 states, 699 states have (on average 1.5236051502145922) internal successors, (1065), 917 states have internal predecessors, (1065), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 18:01:21,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 924 states to 924 states and 1072 transitions. [2024-11-08 18:01:21,317 INFO L78 Accepts]: Start accepts. Automaton has 924 states and 1072 transitions. Word has length 107 [2024-11-08 18:01:21,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:01:21,318 INFO L471 AbstractCegarLoop]: Abstraction has 924 states and 1072 transitions. [2024-11-08 18:01:21,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 24 states have (on average 7.25) internal successors, (174), 26 states have internal predecessors, (174), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:01:21,318 INFO L276 IsEmpty]: Start isEmpty. Operand 924 states and 1072 transitions. [2024-11-08 18:01:21,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-08 18:01:21,319 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:01:21,319 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:01:21,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-08 18:01:21,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-08 18:01:21,523 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr97REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:01:21,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:01:21,523 INFO L85 PathProgramCache]: Analyzing trace with hash 2032178516, now seen corresponding path program 1 times [2024-11-08 18:01:21,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:01:21,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661025252] [2024-11-08 18:01:21,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:01:21,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:01:21,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:23,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 18:01:23,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:23,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:01:23,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:01:23,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661025252] [2024-11-08 18:01:23,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661025252] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:01:23,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913285234] [2024-11-08 18:01:23,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:01:23,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:01:23,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:01:23,161 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:01:23,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-08 18:01:23,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:23,504 INFO L255 TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 54 conjuncts are in the unsatisfiable core [2024-11-08 18:01:23,508 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:01:23,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-08 18:01:23,676 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 18:01:23,695 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-08 18:01:23,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-08 18:01:23,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-08 18:01:23,766 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 18:01:23,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-08 18:01:23,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-08 18:01:24,202 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:01:24,202 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2024-11-08 18:01:24,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-08 18:01:24,384 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:01:24,384 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2024-11-08 18:01:24,390 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-08 18:01:24,537 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:01:24,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2024-11-08 18:01:24,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-08 18:01:24,658 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:01:24,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2024-11-08 18:01:24,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-08 18:01:24,785 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:01:24,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2024-11-08 18:01:24,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-08 18:01:24,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 18 [2024-11-08 18:01:24,834 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-08 18:01:24,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 18:01:24,952 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-08 18:01:24,978 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2024-11-08 18:01:24,979 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2024-11-08 18:01:25,037 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:01:25,038 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:01:25,616 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_2858 (Array Int Int)) (v_ArrVal_2861 (Array Int Int)) (v_ArrVal_2860 (Array Int Int)) (|v_ULTIMATE.start_main_#t~malloc61#1.base_7| Int) (v_ArrVal_2859 (Array Int Int))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc61#1.base_7|) 0)) (forall ((v_ArrVal_2862 Int)) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem58#1.base| v_ArrVal_2858))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (<= (+ (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem58#1.base| v_ArrVal_2859) .cse0 v_ArrVal_2861) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 4) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc61#1.base_7| v_ArrVal_2862) (select (select (store .cse2 .cse0 v_ArrVal_2860) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))) (or (forall ((v_ArrVal_2858 (Array Int Int)) (v_ArrVal_2861 (Array Int Int)) (v_ArrVal_2859 (Array Int Int))) (< 0 (+ (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem58#1.base| v_ArrVal_2859) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem58#1.base| v_ArrVal_2858) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2861) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 1))) (forall ((|v_ULTIMATE.start_main_#t~malloc61#1.base_7| Int)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc61#1.base_7|) 0)))))) is different from false [2024-11-08 18:01:26,522 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (or (forall ((v_ArrVal_2858 (Array Int Int)) (v_ArrVal_2857 (Array Int Int)) (v_ArrVal_2856 (Array Int Int)) (v_ArrVal_2855 (Array Int Int)) (v_ArrVal_2854 (Array Int Int)) (v_ArrVal_2861 (Array Int Int)) (v_ArrVal_2859 (Array Int Int))) (< 0 (+ (select (select (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_2855))) (let ((.cse0 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse2 (store .cse4 .cse0 v_ArrVal_2856))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_2854) .cse0 v_ArrVal_2857) .cse1 v_ArrVal_2859) (select (select (store .cse2 .cse1 v_ArrVal_2858) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_2861))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) 1))) (forall ((|v_ULTIMATE.start_main_#t~malloc61#1.base_7| Int)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc61#1.base_7|) 0)))) (forall ((v_ArrVal_2858 (Array Int Int)) (v_ArrVal_2857 (Array Int Int)) (v_ArrVal_2856 (Array Int Int)) (v_ArrVal_2855 (Array Int Int)) (v_ArrVal_2854 (Array Int Int)) (v_ArrVal_2861 (Array Int Int)) (v_ArrVal_2860 (Array Int Int)) (|v_ULTIMATE.start_main_#t~malloc61#1.base_7| Int) (v_ArrVal_2859 (Array Int Int))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc61#1.base_7|) 0)) (forall ((v_ArrVal_2862 Int)) (let ((.cse10 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_2855))) (let ((.cse5 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse9 (store .cse10 .cse5 v_ArrVal_2856))) (let ((.cse6 (select (select .cse9 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse8 (store .cse9 .cse6 v_ArrVal_2858))) (let ((.cse7 (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (<= (+ (select (select (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_2854) .cse5 v_ArrVal_2857) .cse6 v_ArrVal_2859) .cse7 v_ArrVal_2861) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) 4) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc61#1.base_7| v_ArrVal_2862) (select (select (store .cse8 .cse7 v_ArrVal_2860) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))))))) is different from false [2024-11-08 18:01:39,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [913285234] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:01:39,437 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:01:39,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 13] total 29 [2024-11-08 18:01:39,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839963318] [2024-11-08 18:01:39,437 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:01:39,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-08 18:01:39,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:01:39,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-08 18:01:39,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=1351, Unknown=40, NotChecked=154, Total=1722 [2024-11-08 18:01:39,439 INFO L87 Difference]: Start difference. First operand 924 states and 1072 transitions. Second operand has 30 states, 27 states have (on average 6.444444444444445) internal successors, (174), 29 states have internal predecessors, (174), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:02:08,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:02:08,630 INFO L93 Difference]: Finished difference Result 926 states and 1076 transitions. [2024-11-08 18:02:08,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 18:02:08,630 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 27 states have (on average 6.444444444444445) internal successors, (174), 29 states have internal predecessors, (174), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 107 [2024-11-08 18:02:08,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:02:08,632 INFO L225 Difference]: With dead ends: 926 [2024-11-08 18:02:08,632 INFO L226 Difference]: Without dead ends: 926 [2024-11-08 18:02:08,632 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 103 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 595 ImplicationChecksByTransitivity, 17.2s TimeCoverageRelationStatistics Valid=309, Invalid=2209, Unknown=40, NotChecked=198, Total=2756 [2024-11-08 18:02:08,633 INFO L432 NwaCegarLoop]: 489 mSDtfsCounter, 691 mSDsluCounter, 5330 mSDsCounter, 0 mSdLazyCounter, 5129 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 5819 SdHoareTripleChecker+Invalid, 5153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 5129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:02:08,633 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [695 Valid, 5819 Invalid, 5153 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [24 Valid, 5129 Invalid, 0 Unknown, 0 Unchecked, 26.7s Time] [2024-11-08 18:02:08,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2024-11-08 18:02:08,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 904. [2024-11-08 18:02:08,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 904 states, 681 states have (on average 1.5345080763582966) internal successors, (1045), 898 states have internal predecessors, (1045), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:02:08,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 1051 transitions. [2024-11-08 18:02:08,641 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 1051 transitions. Word has length 107 [2024-11-08 18:02:08,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:02:08,641 INFO L471 AbstractCegarLoop]: Abstraction has 904 states and 1051 transitions. [2024-11-08 18:02:08,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 27 states have (on average 6.444444444444445) internal successors, (174), 29 states have internal predecessors, (174), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:02:08,642 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 1051 transitions. [2024-11-08 18:02:08,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 18:02:08,642 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:02:08,643 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:02:08,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-08 18:02:08,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-08 18:02:08,843 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr100REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:02:08,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:02:08,844 INFO L85 PathProgramCache]: Analyzing trace with hash -507513865, now seen corresponding path program 1 times [2024-11-08 18:02:08,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:02:08,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3574605] [2024-11-08 18:02:08,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:02:08,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:02:08,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:02:09,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 18:02:09,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:02:09,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:02:09,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:02:09,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3574605] [2024-11-08 18:02:09,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3574605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:02:09,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:02:09,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:02:09,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691679306] [2024-11-08 18:02:09,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:02:09,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:02:09,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:02:09,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:02:09,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:02:09,730 INFO L87 Difference]: Start difference. First operand 904 states and 1051 transitions. Second operand has 8 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:02:15,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:02:15,277 INFO L93 Difference]: Finished difference Result 909 states and 1059 transitions. [2024-11-08 18:02:15,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:02:15,278 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2024-11-08 18:02:15,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:02:15,280 INFO L225 Difference]: With dead ends: 909 [2024-11-08 18:02:15,281 INFO L226 Difference]: Without dead ends: 909 [2024-11-08 18:02:15,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:02:15,282 INFO L432 NwaCegarLoop]: 774 mSDtfsCounter, 6 mSDsluCounter, 2881 mSDsCounter, 0 mSdLazyCounter, 1013 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3655 SdHoareTripleChecker+Invalid, 1015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:02:15,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3655 Invalid, 1015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1013 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-11-08 18:02:15,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2024-11-08 18:02:15,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 903. [2024-11-08 18:02:15,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 903 states, 681 states have (on average 1.5330396475770924) internal successors, (1044), 897 states have internal predecessors, (1044), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:02:15,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 1050 transitions. [2024-11-08 18:02:15,296 INFO L78 Accepts]: Start accepts. Automaton has 903 states and 1050 transitions. Word has length 109 [2024-11-08 18:02:15,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:02:15,297 INFO L471 AbstractCegarLoop]: Abstraction has 903 states and 1050 transitions. [2024-11-08 18:02:15,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:02:15,297 INFO L276 IsEmpty]: Start isEmpty. Operand 903 states and 1050 transitions. [2024-11-08 18:02:15,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 18:02:15,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:02:15,298 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:02:15,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-08 18:02:15,298 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr101REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:02:15,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:02:15,299 INFO L85 PathProgramCache]: Analyzing trace with hash -507513864, now seen corresponding path program 1 times [2024-11-08 18:02:15,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:02:15,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600735872] [2024-11-08 18:02:15,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:02:15,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:02:15,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:02:19,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 18:02:19,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:02:19,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:02:19,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:02:19,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600735872] [2024-11-08 18:02:19,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600735872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:02:19,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:02:19,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-08 18:02:19,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378331756] [2024-11-08 18:02:19,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:02:19,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-08 18:02:19,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:02:19,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-08 18:02:19,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-11-08 18:02:19,352 INFO L87 Difference]: Start difference. First operand 903 states and 1050 transitions. Second operand has 19 states, 17 states have (on average 6.294117647058823) internal successors, (107), 18 states have internal predecessors, (107), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:02:45,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:02:45,803 INFO L93 Difference]: Finished difference Result 928 states and 1078 transitions. [2024-11-08 18:02:45,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 18:02:45,803 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 6.294117647058823) internal successors, (107), 18 states have internal predecessors, (107), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2024-11-08 18:02:45,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:02:45,805 INFO L225 Difference]: With dead ends: 928 [2024-11-08 18:02:45,805 INFO L226 Difference]: Without dead ends: 928 [2024-11-08 18:02:45,805 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=152, Invalid=778, Unknown=0, NotChecked=0, Total=930 [2024-11-08 18:02:45,805 INFO L432 NwaCegarLoop]: 490 mSDtfsCounter, 712 mSDsluCounter, 4847 mSDsCounter, 0 mSdLazyCounter, 4883 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 716 SdHoareTripleChecker+Valid, 5337 SdHoareTripleChecker+Invalid, 4897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 4883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:02:45,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [716 Valid, 5337 Invalid, 4897 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14 Valid, 4883 Invalid, 0 Unknown, 0 Unchecked, 24.8s Time] [2024-11-08 18:02:45,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2024-11-08 18:02:45,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 925. [2024-11-08 18:02:45,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 702 states have (on average 1.5185185185185186) internal successors, (1066), 918 states have internal predecessors, (1066), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 18:02:45,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1073 transitions. [2024-11-08 18:02:45,813 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1073 transitions. Word has length 109 [2024-11-08 18:02:45,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:02:45,813 INFO L471 AbstractCegarLoop]: Abstraction has 925 states and 1073 transitions. [2024-11-08 18:02:45,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 6.294117647058823) internal successors, (107), 18 states have internal predecessors, (107), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:02:45,814 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1073 transitions. [2024-11-08 18:02:45,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-08 18:02:45,814 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:02:45,814 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:02:45,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-08 18:02:45,815 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr101REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:02:45,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:02:45,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1228202677, now seen corresponding path program 1 times [2024-11-08 18:02:45,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:02:45,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365889647] [2024-11-08 18:02:45,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:02:45,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:02:45,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:02:49,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 18:02:49,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:02:49,624 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:02:49,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:02:49,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365889647] [2024-11-08 18:02:49,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365889647] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:02:49,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608987663] [2024-11-08 18:02:49,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:02:49,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:02:49,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:02:49,625 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:02:49,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-08 18:02:49,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:02:49,993 INFO L255 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-11-08 18:02:49,998 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:02:50,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-08 18:02:50,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 18:02:50,879 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-08 18:02:50,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-08 18:02:51,157 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-08 18:02:51,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 18:02:51,897 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-08 18:02:51,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-08 18:02:52,913 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:02:52,914 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2024-11-08 18:02:52,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-08 18:02:53,623 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:02:53,623 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2024-11-08 18:02:53,647 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-08 18:02:54,099 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:02:54,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2024-11-08 18:02:54,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-08 18:02:54,624 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:02:54,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2024-11-08 18:02:54,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-08 18:02:55,141 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:02:55,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2024-11-08 18:02:55,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-08 18:02:55,715 INFO L349 Elim1Store]: treesize reduction 8, result has 65.2 percent of original size [2024-11-08 18:02:55,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 24 [2024-11-08 18:02:55,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2024-11-08 18:02:56,047 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:02:56,048 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-08 18:02:56,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-08 18:02:56,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-08 18:02:56,333 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-08 18:02:56,534 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:02:56,534 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:03:01,331 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (and (or (forall ((v_ArrVal_3273 (Array Int Int)) (v_ArrVal_3265 (Array Int Int)) (v_ArrVal_3266 (Array Int Int)) (v_ArrVal_3267 (Array Int Int)) (v_ArrVal_3268 (Array Int Int)) (v_ArrVal_3269 (Array Int Int)) (v_ArrVal_3270 (Array Int Int))) (<= 0 (+ 40 (select (select (let ((.cse5 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_3266))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse3 (store .cse5 .cse1 v_ArrVal_3268))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (store (store (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_3265) .cse1 v_ArrVal_3267) .cse2 v_ArrVal_3269) (select (select (store .cse3 .cse2 v_ArrVal_3270) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_3273))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)))) (forall ((|v_ULTIMATE.start_main_#t~malloc61#1.base_9| Int)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc61#1.base_9|) 0)))) (forall ((|v_ULTIMATE.start_main_#t~malloc61#1.base_9| Int) (v_ArrVal_3265 (Array Int Int)) (v_ArrVal_3266 (Array Int Int)) (v_ArrVal_3267 (Array Int Int)) (v_ArrVal_3268 (Array Int Int)) (v_ArrVal_3269 (Array Int Int)) (v_ArrVal_3270 (Array Int Int))) (or (forall ((v_ArrVal_3272 (Array Int Int)) (v_ArrVal_3271 Int) (v_ArrVal_3273 (Array Int Int))) (let ((.cse11 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_3266))) (let ((.cse6 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse10 (store .cse11 .cse6 v_ArrVal_3268))) (let ((.cse7 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse9 (store .cse10 .cse7 v_ArrVal_3270))) (let ((.cse8 (select (select .cse9 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (<= (+ 44 (select (select (store (store (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_3265) .cse6 v_ArrVal_3267) .cse7 v_ArrVal_3269) .cse8 v_ArrVal_3273) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc61#1.base_9| v_ArrVal_3271) (select (select (store .cse9 .cse8 v_ArrVal_3272) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)))))))))) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc61#1.base_9|) 0))))))) is different from false [2024-11-08 18:03:01,520 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (or (forall ((v_ArrVal_3273 (Array Int Int)) (v_ArrVal_3263 (Array Int Int)) (v_ArrVal_3264 (Array Int Int)) (v_ArrVal_3265 (Array Int Int)) (v_ArrVal_3266 (Array Int Int)) (v_ArrVal_3267 (Array Int Int)) (v_ArrVal_3268 (Array Int Int)) (v_ArrVal_3269 (Array Int Int)) (v_ArrVal_3270 (Array Int Int))) (<= 0 (+ (select (select (let ((.cse6 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_3263))) (let ((.cse0 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse5 (store .cse6 .cse0 v_ArrVal_3266))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse3 (store .cse5 .cse1 v_ArrVal_3268))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (store (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_3264) .cse0 v_ArrVal_3265) .cse1 v_ArrVal_3267) .cse2 v_ArrVal_3269) (select (select (store .cse3 .cse2 v_ArrVal_3270) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_3273))))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) 40))) (forall ((|v_ULTIMATE.start_main_#t~malloc61#1.base_9| Int)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc61#1.base_9|) 0)))) (forall ((v_ArrVal_3263 (Array Int Int)) (v_ArrVal_3264 (Array Int Int)) (|v_ULTIMATE.start_main_#t~malloc61#1.base_9| Int) (v_ArrVal_3265 (Array Int Int)) (v_ArrVal_3266 (Array Int Int)) (v_ArrVal_3267 (Array Int Int)) (v_ArrVal_3268 (Array Int Int)) (v_ArrVal_3269 (Array Int Int)) (v_ArrVal_3270 (Array Int Int))) (or (forall ((v_ArrVal_3272 (Array Int Int)) (v_ArrVal_3271 Int) (v_ArrVal_3273 (Array Int Int))) (let ((.cse14 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_3263))) (let ((.cse7 (select (select .cse14 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse13 (store .cse14 .cse7 v_ArrVal_3266))) (let ((.cse8 (select (select .cse13 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse12 (store .cse13 .cse8 v_ArrVal_3268))) (let ((.cse9 (select (select .cse12 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse11 (store .cse12 .cse9 v_ArrVal_3270))) (let ((.cse10 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (<= (+ (select (select (store (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_3264) .cse7 v_ArrVal_3265) .cse8 v_ArrVal_3267) .cse9 v_ArrVal_3269) .cse10 v_ArrVal_3273) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) 44) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc61#1.base_9| v_ArrVal_3271) (select (select (store .cse11 .cse10 v_ArrVal_3272) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)))))))))))) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc61#1.base_9|) 0)))))) is different from false [2024-11-08 18:03:48,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [608987663] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:03:48,093 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:03:48,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 15] total 32 [2024-11-08 18:03:48,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746846574] [2024-11-08 18:03:48,094 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:03:48,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-08 18:03:48,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:03:48,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-08 18:03:48,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=1678, Unknown=70, NotChecked=174, Total=2162 [2024-11-08 18:03:48,095 INFO L87 Difference]: Start difference. First operand 925 states and 1073 transitions. Second operand has 33 states, 30 states have (on average 6.0) internal successors, (180), 32 states have internal predecessors, (180), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:04:45,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:04:45,053 INFO L93 Difference]: Finished difference Result 927 states and 1077 transitions. [2024-11-08 18:04:45,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-08 18:04:45,054 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 30 states have (on average 6.0) internal successors, (180), 32 states have internal predecessors, (180), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 110 [2024-11-08 18:04:45,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:04:45,056 INFO L225 Difference]: With dead ends: 927 [2024-11-08 18:04:45,056 INFO L226 Difference]: Without dead ends: 927 [2024-11-08 18:04:45,057 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 106 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 851 ImplicationChecksByTransitivity, 59.7s TimeCoverageRelationStatistics Valid=397, Invalid=2731, Unknown=72, NotChecked=222, Total=3422 [2024-11-08 18:04:45,058 INFO L432 NwaCegarLoop]: 488 mSDtfsCounter, 680 mSDsluCounter, 5794 mSDsCounter, 0 mSdLazyCounter, 5412 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 6282 SdHoareTripleChecker+Invalid, 5432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 5412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:04:45,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [684 Valid, 6282 Invalid, 5432 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [20 Valid, 5412 Invalid, 0 Unknown, 0 Unchecked, 52.0s Time] [2024-11-08 18:04:45,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2024-11-08 18:04:45,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 902. [2024-11-08 18:04:45,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 902 states, 681 states have (on average 1.5315712187958883) internal successors, (1043), 896 states have internal predecessors, (1043), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:04:45,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1049 transitions. [2024-11-08 18:04:45,073 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1049 transitions. Word has length 110 [2024-11-08 18:04:45,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:04:45,073 INFO L471 AbstractCegarLoop]: Abstraction has 902 states and 1049 transitions. [2024-11-08 18:04:45,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 30 states have (on average 6.0) internal successors, (180), 32 states have internal predecessors, (180), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:04:45,074 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1049 transitions. [2024-11-08 18:04:45,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-08 18:04:45,075 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:04:45,075 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:04:45,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-08 18:04:45,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2024-11-08 18:04:45,276 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr104REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:04:45,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:04:45,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1060001971, now seen corresponding path program 1 times [2024-11-08 18:04:45,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:04:45,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358057118] [2024-11-08 18:04:45,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:45,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:04:45,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:48,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 18:04:48,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:48,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:04:48,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:04:48,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358057118] [2024-11-08 18:04:48,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358057118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:04:48,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:04:48,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-08 18:04:48,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402824528] [2024-11-08 18:04:48,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:04:48,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-08 18:04:48,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:04:48,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-08 18:04:48,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2024-11-08 18:04:48,614 INFO L87 Difference]: Start difference. First operand 902 states and 1049 transitions. Second operand has 18 states, 17 states have (on average 6.470588235294118) internal successors, (110), 17 states have internal predecessors, (110), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:05:31,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:05:31,894 INFO L93 Difference]: Finished difference Result 953 states and 1105 transitions. [2024-11-08 18:05:31,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 18:05:31,895 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 6.470588235294118) internal successors, (110), 17 states have internal predecessors, (110), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 112 [2024-11-08 18:05:31,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:05:31,897 INFO L225 Difference]: With dead ends: 953 [2024-11-08 18:05:31,897 INFO L226 Difference]: Without dead ends: 953 [2024-11-08 18:05:31,897 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=119, Invalid=637, Unknown=0, NotChecked=0, Total=756 [2024-11-08 18:05:31,897 INFO L432 NwaCegarLoop]: 490 mSDtfsCounter, 785 mSDsluCounter, 6241 mSDsCounter, 0 mSdLazyCounter, 4241 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 789 SdHoareTripleChecker+Valid, 6731 SdHoareTripleChecker+Invalid, 4262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 4241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:05:31,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [789 Valid, 6731 Invalid, 4262 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [21 Valid, 4241 Invalid, 0 Unknown, 0 Unchecked, 41.3s Time] [2024-11-08 18:05:31,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 953 states. [2024-11-08 18:05:31,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 953 to 927. [2024-11-08 18:05:31,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 927 states, 705 states have (on average 1.5163120567375887) internal successors, (1069), 920 states have internal predecessors, (1069), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 18:05:31,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1076 transitions. [2024-11-08 18:05:31,913 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1076 transitions. Word has length 112 [2024-11-08 18:05:31,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:05:31,913 INFO L471 AbstractCegarLoop]: Abstraction has 927 states and 1076 transitions. [2024-11-08 18:05:31,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 6.470588235294118) internal successors, (110), 17 states have internal predecessors, (110), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:05:31,914 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1076 transitions. [2024-11-08 18:05:31,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-08 18:05:31,915 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:05:31,915 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:05:31,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-08 18:05:31,915 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr105REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:05:31,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:05:31,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1060001970, now seen corresponding path program 1 times [2024-11-08 18:05:31,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:05:31,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632907843] [2024-11-08 18:05:31,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:05:31,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:05:31,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:05:36,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 18:05:36,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:05:36,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:05:36,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:05:36,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632907843] [2024-11-08 18:05:36,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632907843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:05:36,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:05:36,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-08 18:05:36,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064385432] [2024-11-08 18:05:36,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:05:36,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-08 18:05:36,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:05:36,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-08 18:05:36,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2024-11-08 18:05:36,499 INFO L87 Difference]: Start difference. First operand 927 states and 1076 transitions. Second operand has 17 states, 16 states have (on average 6.875) internal successors, (110), 16 states have internal predecessors, (110), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:06:15,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:06:15,412 INFO L93 Difference]: Finished difference Result 952 states and 1104 transitions. [2024-11-08 18:06:15,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 18:06:15,412 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 6.875) internal successors, (110), 16 states have internal predecessors, (110), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 112 [2024-11-08 18:06:15,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:06:15,415 INFO L225 Difference]: With dead ends: 952 [2024-11-08 18:06:15,415 INFO L226 Difference]: Without dead ends: 952 [2024-11-08 18:06:15,416 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=98, Invalid=604, Unknown=0, NotChecked=0, Total=702 [2024-11-08 18:06:15,416 INFO L432 NwaCegarLoop]: 486 mSDtfsCounter, 796 mSDsluCounter, 5035 mSDsCounter, 0 mSdLazyCounter, 3878 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 800 SdHoareTripleChecker+Valid, 5521 SdHoareTripleChecker+Invalid, 3898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 3878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:06:15,417 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [800 Valid, 5521 Invalid, 3898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 3878 Invalid, 0 Unknown, 0 Unchecked, 36.7s Time] [2024-11-08 18:06:15,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2024-11-08 18:06:15,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 927. [2024-11-08 18:06:15,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 927 states, 705 states have (on average 1.5148936170212766) internal successors, (1068), 920 states have internal predecessors, (1068), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 18:06:15,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1075 transitions. [2024-11-08 18:06:15,429 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1075 transitions. Word has length 112 [2024-11-08 18:06:15,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:06:15,430 INFO L471 AbstractCegarLoop]: Abstraction has 927 states and 1075 transitions. [2024-11-08 18:06:15,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 6.875) internal successors, (110), 16 states have internal predecessors, (110), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:06:15,430 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1075 transitions. [2024-11-08 18:06:15,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-08 18:06:15,431 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:06:15,431 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:06:15,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-08 18:06:15,432 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr104REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:06:15,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:06:15,432 INFO L85 PathProgramCache]: Analyzing trace with hash -558917350, now seen corresponding path program 1 times [2024-11-08 18:06:15,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:06:15,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748757822] [2024-11-08 18:06:15,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:06:15,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:06:15,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:19,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 18:06:19,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:19,618 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:06:19,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:06:19,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748757822] [2024-11-08 18:06:19,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748757822] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:06:19,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757341198] [2024-11-08 18:06:19,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:06:19,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:06:19,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:06:19,620 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:06:19,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-08 18:06:20,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:20,037 INFO L255 TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-08 18:06:20,042 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:06:20,073 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-08 18:06:21,669 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-08 18:06:21,670 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-08 18:06:21,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 18:06:22,177 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:06:22,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32 [2024-11-08 18:06:22,812 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:06:22,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32 [2024-11-08 18:06:23,403 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:06:23,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32 [2024-11-08 18:06:23,921 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:06:23,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32 [2024-11-08 18:06:24,439 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:06:24,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32 [2024-11-08 18:06:24,653 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:06:24,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-08 18:06:25,252 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:06:25,252 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-08 18:06:25,347 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-08 18:06:25,366 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:06:25,366 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:06:25,454 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3698 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem62#1.base| v_ArrVal_3698) |c_ULTIMATE.start_main_~user~0#1.base|) (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) 1)) is different from false [2024-11-08 18:06:25,496 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3698 (Array Int Int))) (= (select |c_#valid| (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_3698) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) 1)) is different from false [2024-11-08 18:06:25,608 INFO L349 Elim1Store]: treesize reduction 5, result has 82.8 percent of original size [2024-11-08 18:06:25,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2024-11-08 18:06:26,697 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3696 (Array Int Int)) (v_ArrVal_3697 (Array Int Int)) (v_ArrVal_3698 (Array Int Int))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem59#1.base| v_ArrVal_3696)) (.cse2 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse0 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (let ((.cse1 (store .cse3 .cse0 v_ArrVal_3697))) (store .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_3698)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))) is different from false [2024-11-08 18:06:26,742 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3696 (Array Int Int)) (v_ArrVal_3697 (Array Int Int)) (v_ArrVal_3698 (Array Int Int))) (let ((.cse2 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_3696))) (let ((.cse0 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (let ((.cse1 (store .cse3 .cse0 v_ArrVal_3697))) (store .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_3698)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) is different from false [2024-11-08 18:06:26,808 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3695 (Array Int Int)) (v_ArrVal_3696 (Array Int Int)) (v_ArrVal_3697 (Array Int Int)) (v_ArrVal_3698 (Array Int Int))) (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse2 (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem58#1.base| v_ArrVal_3695))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3696)))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= (select (select (let ((.cse0 (store .cse2 .cse3 v_ArrVal_3697))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3698)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) .cse3))))) is different from false [2024-11-08 18:06:26,857 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3695 (Array Int Int)) (v_ArrVal_3696 (Array Int Int)) (v_ArrVal_3697 (Array Int Int)) (v_ArrVal_3698 (Array Int Int))) (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse2 (let ((.cse4 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3695))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3696)))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= (select (select (let ((.cse0 (store .cse2 .cse3 v_ArrVal_3697))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3698)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) .cse3))))) is different from false [2024-11-08 18:06:26,932 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3694 (Array Int Int)) (v_ArrVal_3695 (Array Int Int)) (v_ArrVal_3696 (Array Int Int)) (v_ArrVal_3697 (Array Int Int)) (v_ArrVal_3698 (Array Int Int))) (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse2 (let ((.cse4 (let ((.cse5 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem57#1.base| v_ArrVal_3694))) (store .cse5 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3695)))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3696)))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= (select (select (let ((.cse0 (store .cse2 .cse3 v_ArrVal_3697))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3698)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) .cse3))))) is different from false [2024-11-08 18:06:26,985 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3694 (Array Int Int)) (v_ArrVal_3695 (Array Int Int)) (v_ArrVal_3696 (Array Int Int)) (v_ArrVal_3697 (Array Int Int)) (v_ArrVal_3698 (Array Int Int))) (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse2 (let ((.cse4 (let ((.cse5 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3694))) (store .cse5 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3695)))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3696)))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= (select (select (let ((.cse0 (store .cse2 .cse3 v_ArrVal_3697))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3698)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) .cse3))))) is different from false [2024-11-08 18:06:27,081 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3693 (Array Int Int)) (v_ArrVal_3694 (Array Int Int)) (v_ArrVal_3695 (Array Int Int)) (v_ArrVal_3696 (Array Int Int)) (v_ArrVal_3697 (Array Int Int)) (v_ArrVal_3698 (Array Int Int))) (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse2 (let ((.cse4 (let ((.cse5 (let ((.cse6 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_3693))) (store .cse6 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3694)))) (store .cse5 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3695)))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3696)))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= (select (select (let ((.cse0 (store .cse2 .cse3 v_ArrVal_3697))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3698)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) .cse3))))) is different from false [2024-11-08 18:06:27,154 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3693 (Array Int Int)) (v_ArrVal_3694 (Array Int Int)) (v_ArrVal_3695 (Array Int Int)) (v_ArrVal_3696 (Array Int Int)) (v_ArrVal_3697 (Array Int Int)) (v_ArrVal_3698 (Array Int Int))) (let ((.cse2 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse3 (let ((.cse4 (let ((.cse5 (let ((.cse6 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_3693))) (store .cse6 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_3694)))) (store .cse5 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_3695)))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_3696)))) (let ((.cse0 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (let ((.cse1 (store .cse3 .cse0 v_ArrVal_3697))) (store .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_3698)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) is different from false [2024-11-08 18:06:27,481 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3693 (Array Int Int)) (v_ArrVal_3694 (Array Int Int)) (v_ArrVal_3695 (Array Int Int)) (v_ArrVal_3696 (Array Int Int)) (v_ArrVal_3697 (Array Int Int)) (v_ArrVal_3698 (Array Int Int)) (v_ArrVal_3701 (Array Int Int))) (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse2 (let ((.cse4 (let ((.cse5 (let ((.cse6 (let ((.cse7 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_3701))) (store .cse7 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3693)))) (store .cse6 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3694)))) (store .cse5 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3695)))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3696)))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= (select (select (let ((.cse0 (store .cse2 .cse3 v_ArrVal_3697))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3698)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) .cse3))))) is different from false [2024-11-08 18:06:27,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [757341198] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:06:27,491 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:06:27,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 15] total 24 [2024-11-08 18:06:27,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253759937] [2024-11-08 18:06:27,492 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:06:27,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-08 18:06:27,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:06:27,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-08 18:06:27,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=607, Unknown=26, NotChecked=660, Total=1406 [2024-11-08 18:06:27,494 INFO L87 Difference]: Start difference. First operand 927 states and 1075 transitions. Second operand has 25 states, 23 states have (on average 7.217391304347826) internal successors, (166), 24 states have internal predecessors, (166), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:07:10,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:07:10,435 INFO L93 Difference]: Finished difference Result 943 states and 1093 transitions. [2024-11-08 18:07:10,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 18:07:10,436 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 7.217391304347826) internal successors, (166), 24 states have internal predecessors, (166), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 113 [2024-11-08 18:07:10,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:07:10,437 INFO L225 Difference]: With dead ends: 943 [2024-11-08 18:07:10,437 INFO L226 Difference]: Without dead ends: 943 [2024-11-08 18:07:10,438 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 122 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 11 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=210, Invalid=1214, Unknown=26, NotChecked=902, Total=2352 [2024-11-08 18:07:10,439 INFO L432 NwaCegarLoop]: 490 mSDtfsCounter, 758 mSDsluCounter, 6717 mSDsCounter, 0 mSdLazyCounter, 4533 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 7207 SdHoareTripleChecker+Invalid, 4563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 4533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:07:10,439 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [760 Valid, 7207 Invalid, 4563 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [30 Valid, 4533 Invalid, 0 Unknown, 0 Unchecked, 40.6s Time] [2024-11-08 18:07:10,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 943 states. [2024-11-08 18:07:10,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 943 to 926. [2024-11-08 18:07:10,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 705 states have (on average 1.5134751773049646) internal successors, (1067), 919 states have internal predecessors, (1067), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 18:07:10,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1074 transitions. [2024-11-08 18:07:10,452 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1074 transitions. Word has length 113 [2024-11-08 18:07:10,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:07:10,453 INFO L471 AbstractCegarLoop]: Abstraction has 926 states and 1074 transitions. [2024-11-08 18:07:10,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 7.217391304347826) internal successors, (166), 24 states have internal predecessors, (166), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:07:10,454 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1074 transitions. [2024-11-08 18:07:10,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-08 18:07:10,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:07:10,455 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:07:10,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-08 18:07:10,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-11-08 18:07:10,656 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr105REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:07:10,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:07:10,656 INFO L85 PathProgramCache]: Analyzing trace with hash -558917349, now seen corresponding path program 1 times [2024-11-08 18:07:10,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:07:10,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056628188] [2024-11-08 18:07:10,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:07:10,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:07:10,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:07:14,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 18:07:14,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:07:15,392 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:07:15,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:07:15,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056628188] [2024-11-08 18:07:15,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056628188] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:07:15,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144917933] [2024-11-08 18:07:15,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:07:15,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:07:15,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:07:15,394 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:07:15,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-08 18:07:15,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:07:15,805 INFO L255 TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 56 conjuncts are in the unsatisfiable core [2024-11-08 18:07:15,809 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:07:15,829 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-08 18:07:17,195 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-08 18:07:17,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-08 18:07:17,254 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-08 18:07:17,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 18:07:18,172 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:07:18,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 48 [2024-11-08 18:07:18,192 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-08 18:07:18,760 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:07:18,760 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 48 [2024-11-08 18:07:18,783 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-08 18:07:19,401 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:07:19,401 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 48 [2024-11-08 18:07:19,430 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-08 18:07:20,136 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:07:20,136 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 48 [2024-11-08 18:07:20,157 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-08 18:07:20,748 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:07:20,748 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 48 [2024-11-08 18:07:20,769 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-08 18:07:21,488 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:07:21,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-08 18:07:21,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-08 18:07:22,863 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:07:22,864 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-08 18:07:22,920 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-08 18:07:23,083 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-08 18:07:23,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-08 18:07:23,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:07:23,463 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:07:24,336 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_3932 (Array Int Int)) (v_ArrVal_3933 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem62#1.base| v_ArrVal_3933) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 4) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem62#1.base| v_ArrVal_3932) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_3933 (Array Int Int))) (<= 0 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem62#1.base| v_ArrVal_3933) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))))) is different from false [2024-11-08 18:07:24,403 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_3933 (Array Int Int))) (<= 0 (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_3933) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (forall ((v_ArrVal_3932 (Array Int Int)) (v_ArrVal_3933 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_3933) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 4) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_3932) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))))))) is different from false [2024-11-08 18:07:24,536 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:07:24,537 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 84 [2024-11-08 18:07:24,791 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_3930 (Array Int Int)) (v_ArrVal_3931 (Array Int Int)) (v_ArrVal_3933 (Array Int Int))) (< (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem60#1.base| v_ArrVal_3931) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem60#1.base| v_ArrVal_3930) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_3933) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 1)) (forall ((v_ArrVal_3930 (Array Int Int)) (v_ArrVal_3932 (Array Int Int))) (= |c_ULTIMATE.start_main_#t~mem60#1.base| (select (select (let ((.cse1 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem60#1.base| v_ArrVal_3930))) (store .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_3932)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (forall ((v_prenex_43 (Array Int Int)) (v_prenex_45 (Array Int Int)) (v_prenex_44 (Array Int Int))) (<= 0 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem60#1.base| v_prenex_44) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem60#1.base| v_prenex_43) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_prenex_45) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))))) is different from false [2024-11-08 18:07:24,945 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_prenex_43 (Array Int Int)) (v_prenex_45 (Array Int Int)) (v_prenex_44 (Array Int Int))) (<= 0 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_prenex_44) (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_prenex_43) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_prenex_45) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (forall ((v_ArrVal_3930 (Array Int Int)) (v_ArrVal_3931 (Array Int Int)) (v_ArrVal_3933 (Array Int Int))) (< (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_3931) (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_3930) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3933) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 1)) (forall ((v_ArrVal_3930 (Array Int Int)) (v_ArrVal_3932 (Array Int Int))) (= .cse0 (select (select (let ((.cse2 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_3930))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3932)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-08 18:07:25,137 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_3928 (Array Int Int)) (v_ArrVal_3929 (Array Int Int)) (v_prenex_43 (Array Int Int)) (v_prenex_45 (Array Int Int)) (v_prenex_44 (Array Int Int))) (<= 0 (select (select (let ((.cse1 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem59#1.base| v_ArrVal_3929))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem59#1.base| v_ArrVal_3928) .cse0 v_prenex_44) (select (select (store .cse1 .cse0 v_prenex_43) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_prenex_45))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (forall ((v_ArrVal_3928 (Array Int Int)) (v_ArrVal_3929 (Array Int Int)) (v_ArrVal_3930 (Array Int Int)) (v_ArrVal_3931 (Array Int Int)) (v_ArrVal_3933 (Array Int Int))) (< (select (select (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem59#1.base| v_ArrVal_3929))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem59#1.base| v_ArrVal_3928) .cse3 v_ArrVal_3931) (select (select (store .cse4 .cse3 v_ArrVal_3930) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_3933))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) 1)) (forall ((v_ArrVal_3929 (Array Int Int)) (v_ArrVal_3930 (Array Int Int)) (v_ArrVal_3932 (Array Int Int))) (let ((.cse6 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem59#1.base| v_ArrVal_3929))) (let ((.cse7 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= (select (select (let ((.cse5 (store .cse6 .cse7 v_ArrVal_3930))) (store .cse5 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_3932)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) .cse7)))))) is different from false [2024-11-08 18:07:25,242 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse4 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_3929 (Array Int Int)) (v_ArrVal_3930 (Array Int Int)) (v_ArrVal_3932 (Array Int Int))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse4 v_ArrVal_3929))) (let ((.cse0 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (let ((.cse1 (store .cse3 .cse0 v_ArrVal_3930))) (store .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_3932)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))) (forall ((v_ArrVal_3928 (Array Int Int)) (v_ArrVal_3929 (Array Int Int)) (v_prenex_43 (Array Int Int)) (v_prenex_45 (Array Int Int)) (v_prenex_44 (Array Int Int))) (<= 0 (select (select (let ((.cse6 (store |c_#memory_$Pointer$#1.base| .cse4 v_ArrVal_3929))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (store (store (store |c_#memory_$Pointer$#1.offset| .cse4 v_ArrVal_3928) .cse5 v_prenex_44) (select (select (store .cse6 .cse5 v_prenex_43) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_prenex_45))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (forall ((v_ArrVal_3928 (Array Int Int)) (v_ArrVal_3929 (Array Int Int)) (v_ArrVal_3930 (Array Int Int)) (v_ArrVal_3931 (Array Int Int)) (v_ArrVal_3933 (Array Int Int))) (< (select (select (let ((.cse8 (store |c_#memory_$Pointer$#1.base| .cse4 v_ArrVal_3929))) (let ((.cse7 (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (store (store (store |c_#memory_$Pointer$#1.offset| .cse4 v_ArrVal_3928) .cse7 v_ArrVal_3931) (select (select (store .cse8 .cse7 v_ArrVal_3930) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_3933))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) 1))))) is different from false [2024-11-08 18:07:25,570 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_3926 (Array Int Int)) (v_ArrVal_3927 (Array Int Int)) (v_ArrVal_3928 (Array Int Int)) (v_ArrVal_3929 (Array Int Int)) (v_ArrVal_3930 (Array Int Int)) (v_ArrVal_3931 (Array Int Int)) (v_ArrVal_3933 (Array Int Int))) (< (select (select (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem58#1.base| v_ArrVal_3927))) (let ((.cse0 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse2 (store .cse4 .cse0 v_ArrVal_3929))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem58#1.base| v_ArrVal_3926) .cse0 v_ArrVal_3928) .cse1 v_ArrVal_3931) (select (select (store .cse2 .cse1 v_ArrVal_3930) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_3933))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) 1)) (forall ((v_ArrVal_3926 (Array Int Int)) (v_ArrVal_3927 (Array Int Int)) (v_ArrVal_3928 (Array Int Int)) (v_ArrVal_3929 (Array Int Int)) (v_prenex_43 (Array Int Int)) (v_prenex_45 (Array Int Int)) (v_prenex_44 (Array Int Int))) (<= 0 (select (select (let ((.cse8 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem58#1.base| v_ArrVal_3927))) (let ((.cse5 (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse7 (store .cse8 .cse5 v_ArrVal_3929))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem58#1.base| v_ArrVal_3926) .cse5 v_ArrVal_3928) .cse6 v_prenex_44) (select (select (store .cse7 .cse6 v_prenex_43) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_prenex_45))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (forall ((v_ArrVal_3927 (Array Int Int)) (v_ArrVal_3929 (Array Int Int)) (v_ArrVal_3930 (Array Int Int)) (v_ArrVal_3932 (Array Int Int))) (let ((.cse11 (let ((.cse12 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem58#1.base| v_ArrVal_3927))) (store .cse12 (select (select .cse12 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_3929)))) (let ((.cse9 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (= .cse9 (select (select (let ((.cse10 (store .cse11 .cse9 v_ArrVal_3930))) (store .cse10 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_3932)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))))))) is different from false [2024-11-08 18:07:25,755 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (and (forall ((v_ArrVal_3926 (Array Int Int)) (v_ArrVal_3927 (Array Int Int)) (v_ArrVal_3928 (Array Int Int)) (v_ArrVal_3929 (Array Int Int)) (v_ArrVal_3930 (Array Int Int)) (v_ArrVal_3931 (Array Int Int)) (v_ArrVal_3933 (Array Int Int))) (< (select (select (let ((.cse5 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_3927))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse3 (store .cse5 .cse1 v_ArrVal_3929))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (store (store (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_3926) .cse1 v_ArrVal_3928) .cse2 v_ArrVal_3931) (select (select (store .cse3 .cse2 v_ArrVal_3930) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_3933))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) 1)) (forall ((v_ArrVal_3926 (Array Int Int)) (v_ArrVal_3927 (Array Int Int)) (v_ArrVal_3928 (Array Int Int)) (v_ArrVal_3929 (Array Int Int)) (v_prenex_43 (Array Int Int)) (v_prenex_45 (Array Int Int)) (v_prenex_44 (Array Int Int))) (<= 0 (select (select (let ((.cse9 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_3927))) (let ((.cse6 (select (select .cse9 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse8 (store .cse9 .cse6 v_ArrVal_3929))) (let ((.cse7 (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (store (store (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_3926) .cse6 v_ArrVal_3928) .cse7 v_prenex_44) (select (select (store .cse8 .cse7 v_prenex_43) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_prenex_45))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (forall ((v_ArrVal_3927 (Array Int Int)) (v_ArrVal_3929 (Array Int Int)) (v_ArrVal_3930 (Array Int Int)) (v_ArrVal_3932 (Array Int Int))) (let ((.cse11 (let ((.cse13 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_3927))) (store .cse13 (select (select .cse13 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_3929)))) (let ((.cse12 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (= (select (select (let ((.cse10 (store .cse11 .cse12 v_ArrVal_3930))) (store .cse10 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_3932)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) .cse12))))))) is different from false [2024-11-08 18:07:26,029 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_3926 (Array Int Int)) (v_ArrVal_3927 (Array Int Int)) (v_ArrVal_3928 (Array Int Int)) (v_ArrVal_3929 (Array Int Int)) (v_ArrVal_3930 (Array Int Int)) (v_ArrVal_3931 (Array Int Int)) (v_ArrVal_3933 (Array Int Int)) (v_ArrVal_3924 (Array Int Int)) (v_ArrVal_3925 (Array Int Int))) (< (select (select (let ((.cse6 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem57#1.base| v_ArrVal_3925))) (let ((.cse0 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse5 (store .cse6 .cse0 v_ArrVal_3927))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse3 (store .cse5 .cse1 v_ArrVal_3929))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (store (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem57#1.base| v_ArrVal_3924) .cse0 v_ArrVal_3926) .cse1 v_ArrVal_3928) .cse2 v_ArrVal_3931) (select (select (store .cse3 .cse2 v_ArrVal_3930) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_3933))))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) 1)) (forall ((v_ArrVal_3927 (Array Int Int)) (v_ArrVal_3929 (Array Int Int)) (v_ArrVal_3930 (Array Int Int)) (v_ArrVal_3932 (Array Int Int)) (v_ArrVal_3925 (Array Int Int))) (let ((.cse8 (let ((.cse10 (let ((.cse11 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem57#1.base| v_ArrVal_3925))) (store .cse11 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_3927)))) (store .cse10 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_3929)))) (let ((.cse9 (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (= (select (select (let ((.cse7 (store .cse8 .cse9 v_ArrVal_3930))) (store .cse7 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_3932)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) .cse9)))) (forall ((v_ArrVal_3926 (Array Int Int)) (v_ArrVal_3927 (Array Int Int)) (v_ArrVal_3928 (Array Int Int)) (v_ArrVal_3929 (Array Int Int)) (v_prenex_43 (Array Int Int)) (v_prenex_45 (Array Int Int)) (v_prenex_44 (Array Int Int)) (v_ArrVal_3924 (Array Int Int)) (v_ArrVal_3925 (Array Int Int))) (<= 0 (select (select (let ((.cse17 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem57#1.base| v_ArrVal_3925))) (let ((.cse12 (select (select .cse17 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse16 (store .cse17 .cse12 v_ArrVal_3927))) (let ((.cse13 (select (select .cse16 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse15 (store .cse16 .cse13 v_ArrVal_3929))) (let ((.cse14 (select (select .cse15 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (store (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem57#1.base| v_ArrVal_3924) .cse12 v_ArrVal_3926) .cse13 v_ArrVal_3928) .cse14 v_prenex_44) (select (select (store .cse15 .cse14 v_prenex_43) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_prenex_45))))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))))) is different from false [2024-11-08 18:07:26,256 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse5 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (and (forall ((v_ArrVal_3926 (Array Int Int)) (v_ArrVal_3927 (Array Int Int)) (v_ArrVal_3928 (Array Int Int)) (v_ArrVal_3929 (Array Int Int)) (v_prenex_43 (Array Int Int)) (v_prenex_45 (Array Int Int)) (v_prenex_44 (Array Int Int)) (v_ArrVal_3924 (Array Int Int)) (v_ArrVal_3925 (Array Int Int))) (<= 0 (select (select (let ((.cse7 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_3925))) (let ((.cse1 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (let ((.cse6 (store .cse7 .cse1 v_ArrVal_3927))) (let ((.cse2 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (let ((.cse4 (store .cse6 .cse2 v_ArrVal_3929))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (store (store (store (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_3924) .cse1 v_ArrVal_3926) .cse2 v_ArrVal_3928) .cse3 v_prenex_44) (select (select (store .cse4 .cse3 v_prenex_43) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5) v_prenex_45))))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (forall ((v_ArrVal_3926 (Array Int Int)) (v_ArrVal_3927 (Array Int Int)) (v_ArrVal_3928 (Array Int Int)) (v_ArrVal_3929 (Array Int Int)) (v_ArrVal_3930 (Array Int Int)) (v_ArrVal_3931 (Array Int Int)) (v_ArrVal_3933 (Array Int Int)) (v_ArrVal_3924 (Array Int Int)) (v_ArrVal_3925 (Array Int Int))) (< (select (select (let ((.cse13 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_3925))) (let ((.cse8 (select (select .cse13 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (let ((.cse12 (store .cse13 .cse8 v_ArrVal_3927))) (let ((.cse9 (select (select .cse12 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (let ((.cse11 (store .cse12 .cse9 v_ArrVal_3929))) (let ((.cse10 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (store (store (store (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_3924) .cse8 v_ArrVal_3926) .cse9 v_ArrVal_3928) .cse10 v_ArrVal_3931) (select (select (store .cse11 .cse10 v_ArrVal_3930) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5) v_ArrVal_3933))))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5) 1)) (forall ((v_ArrVal_3927 (Array Int Int)) (v_ArrVal_3929 (Array Int Int)) (v_ArrVal_3930 (Array Int Int)) (v_ArrVal_3932 (Array Int Int)) (v_ArrVal_3925 (Array Int Int))) (let ((.cse16 (let ((.cse17 (let ((.cse18 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_3925))) (store .cse18 (select (select .cse18 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5) v_ArrVal_3927)))) (store .cse17 (select (select .cse17 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5) v_ArrVal_3929)))) (let ((.cse14 (select (select .cse16 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (= .cse14 (select (select (let ((.cse15 (store .cse16 .cse14 v_ArrVal_3930))) (store .cse15 (select (select .cse15 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5) v_ArrVal_3932)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5)))))))) is different from false [2024-11-08 18:07:30,542 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse5 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_3926 (Array Int Int)) (v_ArrVal_3927 (Array Int Int)) (v_ArrVal_3928 (Array Int Int)) (v_ArrVal_3929 (Array Int Int)) (v_prenex_43 (Array Int Int)) (v_prenex_45 (Array Int Int)) (v_prenex_44 (Array Int Int)) (v_ArrVal_3922 (Array Int Int)) (v_ArrVal_3923 (Array Int Int)) (v_ArrVal_3924 (Array Int Int)) (v_ArrVal_3925 (Array Int Int))) (<= 0 (select (select (let ((.cse8 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_3923))) (let ((.cse0 (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (let ((.cse7 (store .cse8 .cse0 v_ArrVal_3925))) (let ((.cse1 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (let ((.cse6 (store .cse7 .cse1 v_ArrVal_3927))) (let ((.cse2 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (let ((.cse4 (store .cse6 .cse2 v_ArrVal_3929))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (store (store (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_3922) .cse0 v_ArrVal_3924) .cse1 v_ArrVal_3926) .cse2 v_ArrVal_3928) .cse3 v_prenex_44) (select (select (store .cse4 .cse3 v_prenex_43) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5) v_prenex_45))))))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (forall ((v_ArrVal_3927 (Array Int Int)) (v_ArrVal_3929 (Array Int Int)) (v_ArrVal_3930 (Array Int Int)) (v_ArrVal_3932 (Array Int Int)) (v_ArrVal_3923 (Array Int Int)) (v_ArrVal_3925 (Array Int Int))) (let ((.cse11 (let ((.cse12 (let ((.cse13 (let ((.cse14 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_3923))) (store .cse14 (select (select .cse14 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5) v_ArrVal_3925)))) (store .cse13 (select (select .cse13 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5) v_ArrVal_3927)))) (store .cse12 (select (select .cse12 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5) v_ArrVal_3929)))) (let ((.cse9 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (= .cse9 (select (select (let ((.cse10 (store .cse11 .cse9 v_ArrVal_3930))) (store .cse10 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5) v_ArrVal_3932)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))))) (forall ((v_ArrVal_3926 (Array Int Int)) (v_ArrVal_3927 (Array Int Int)) (v_ArrVal_3928 (Array Int Int)) (v_ArrVal_3929 (Array Int Int)) (v_ArrVal_3930 (Array Int Int)) (v_ArrVal_3931 (Array Int Int)) (v_ArrVal_3922 (Array Int Int)) (v_ArrVal_3933 (Array Int Int)) (v_ArrVal_3923 (Array Int Int)) (v_ArrVal_3924 (Array Int Int)) (v_ArrVal_3925 (Array Int Int))) (< (select (select (let ((.cse22 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_3923))) (let ((.cse15 (select (select .cse22 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (let ((.cse21 (store .cse22 .cse15 v_ArrVal_3925))) (let ((.cse16 (select (select .cse21 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (let ((.cse20 (store .cse21 .cse16 v_ArrVal_3927))) (let ((.cse17 (select (select .cse20 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (let ((.cse19 (store .cse20 .cse17 v_ArrVal_3929))) (let ((.cse18 (select (select .cse19 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (store (store (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_3922) .cse15 v_ArrVal_3924) .cse16 v_ArrVal_3926) .cse17 v_ArrVal_3928) .cse18 v_ArrVal_3931) (select (select (store .cse19 .cse18 v_ArrVal_3930) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5) v_ArrVal_3933))))))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5) 1)))) is different from false [2024-11-08 18:07:35,721 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse7 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_3927 (Array Int Int)) (v_ArrVal_3929 (Array Int Int)) (v_ArrVal_3930 (Array Int Int)) (v_ArrVal_3932 (Array Int Int)) (v_ArrVal_3923 (Array Int Int)) (v_ArrVal_3925 (Array Int Int))) (let ((.cse3 (let ((.cse4 (let ((.cse5 (let ((.cse6 (store |c_#memory_$Pointer$#1.base| .cse7 v_ArrVal_3923))) (store .cse6 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_3925)))) (store .cse5 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_3927)))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_3929)))) (let ((.cse0 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (let ((.cse1 (store .cse3 .cse0 v_ArrVal_3930))) (store .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_3932)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))) (forall ((v_ArrVal_3926 (Array Int Int)) (v_ArrVal_3927 (Array Int Int)) (v_ArrVal_3928 (Array Int Int)) (v_ArrVal_3929 (Array Int Int)) (v_prenex_43 (Array Int Int)) (v_prenex_45 (Array Int Int)) (v_prenex_44 (Array Int Int)) (v_ArrVal_3922 (Array Int Int)) (v_ArrVal_3923 (Array Int Int)) (v_ArrVal_3924 (Array Int Int)) (v_ArrVal_3925 (Array Int Int))) (<= 0 (select (select (let ((.cse15 (store |c_#memory_$Pointer$#1.base| .cse7 v_ArrVal_3923))) (let ((.cse8 (select (select .cse15 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse14 (store .cse15 .cse8 v_ArrVal_3925))) (let ((.cse9 (select (select .cse14 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse13 (store .cse14 .cse9 v_ArrVal_3927))) (let ((.cse10 (select (select .cse13 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse12 (store .cse13 .cse10 v_ArrVal_3929))) (let ((.cse11 (select (select .cse12 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (store (store (store (store (store (store |c_#memory_$Pointer$#1.offset| .cse7 v_ArrVal_3922) .cse8 v_ArrVal_3924) .cse9 v_ArrVal_3926) .cse10 v_ArrVal_3928) .cse11 v_prenex_44) (select (select (store .cse12 .cse11 v_prenex_43) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_prenex_45))))))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (forall ((v_ArrVal_3926 (Array Int Int)) (v_ArrVal_3927 (Array Int Int)) (v_ArrVal_3928 (Array Int Int)) (v_ArrVal_3929 (Array Int Int)) (v_ArrVal_3930 (Array Int Int)) (v_ArrVal_3931 (Array Int Int)) (v_ArrVal_3922 (Array Int Int)) (v_ArrVal_3933 (Array Int Int)) (v_ArrVal_3923 (Array Int Int)) (v_ArrVal_3924 (Array Int Int)) (v_ArrVal_3925 (Array Int Int))) (< (select (select (let ((.cse23 (store |c_#memory_$Pointer$#1.base| .cse7 v_ArrVal_3923))) (let ((.cse16 (select (select .cse23 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse22 (store .cse23 .cse16 v_ArrVal_3925))) (let ((.cse17 (select (select .cse22 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse21 (store .cse22 .cse17 v_ArrVal_3927))) (let ((.cse18 (select (select .cse21 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse20 (store .cse21 .cse18 v_ArrVal_3929))) (let ((.cse19 (select (select .cse20 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (store (store (store (store (store (store |c_#memory_$Pointer$#1.offset| .cse7 v_ArrVal_3922) .cse16 v_ArrVal_3924) .cse17 v_ArrVal_3926) .cse18 v_ArrVal_3928) .cse19 v_ArrVal_3931) (select (select (store .cse20 .cse19 v_ArrVal_3930) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_3933))))))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) 1))))) is different from false [2024-11-08 18:07:41,466 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_3927 (Array Int Int)) (v_ArrVal_3939 (Array Int Int)) (v_ArrVal_3929 (Array Int Int)) (v_ArrVal_3930 (Array Int Int)) (v_ArrVal_3932 (Array Int Int)) (v_ArrVal_3923 (Array Int Int)) (v_ArrVal_3925 (Array Int Int))) (let ((.cse2 (let ((.cse4 (let ((.cse5 (let ((.cse6 (let ((.cse7 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_3939))) (store .cse7 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3923)))) (store .cse6 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3925)))) (store .cse5 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3927)))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3929)))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= (select (select (let ((.cse0 (store .cse2 .cse3 v_ArrVal_3930))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3932)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) .cse3)))) (forall ((v_ArrVal_3926 (Array Int Int)) (v_ArrVal_3938 (Array Int Int)) (v_ArrVal_3927 (Array Int Int)) (v_ArrVal_3939 (Array Int Int)) (v_ArrVal_3928 (Array Int Int)) (v_ArrVal_3929 (Array Int Int)) (v_ArrVal_3930 (Array Int Int)) (v_ArrVal_3931 (Array Int Int)) (v_ArrVal_3922 (Array Int Int)) (v_ArrVal_3933 (Array Int Int)) (v_ArrVal_3923 (Array Int Int)) (v_ArrVal_3924 (Array Int Int)) (v_ArrVal_3925 (Array Int Int))) (< (select (select (let ((.cse17 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_3939))) (let ((.cse8 (select (select .cse17 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse16 (store .cse17 .cse8 v_ArrVal_3923))) (let ((.cse9 (select (select .cse16 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse15 (store .cse16 .cse9 v_ArrVal_3925))) (let ((.cse10 (select (select .cse15 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse14 (store .cse15 .cse10 v_ArrVal_3927))) (let ((.cse11 (select (select .cse14 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse13 (store .cse14 .cse11 v_ArrVal_3929))) (let ((.cse12 (select (select .cse13 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (store (store (store (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_3938) .cse8 v_ArrVal_3922) .cse9 v_ArrVal_3924) .cse10 v_ArrVal_3926) .cse11 v_ArrVal_3928) .cse12 v_ArrVal_3931) (select (select (store .cse13 .cse12 v_ArrVal_3930) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3933))))))))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 1)) (forall ((v_ArrVal_3926 (Array Int Int)) (v_ArrVal_3938 (Array Int Int)) (v_ArrVal_3927 (Array Int Int)) (v_ArrVal_3939 (Array Int Int)) (v_ArrVal_3928 (Array Int Int)) (v_ArrVal_3929 (Array Int Int)) (v_prenex_43 (Array Int Int)) (v_prenex_45 (Array Int Int)) (v_prenex_44 (Array Int Int)) (v_ArrVal_3922 (Array Int Int)) (v_ArrVal_3923 (Array Int Int)) (v_ArrVal_3924 (Array Int Int)) (v_ArrVal_3925 (Array Int Int))) (<= 0 (select (select (let ((.cse27 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_3939))) (let ((.cse18 (select (select .cse27 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse26 (store .cse27 .cse18 v_ArrVal_3923))) (let ((.cse19 (select (select .cse26 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse25 (store .cse26 .cse19 v_ArrVal_3925))) (let ((.cse20 (select (select .cse25 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse24 (store .cse25 .cse20 v_ArrVal_3927))) (let ((.cse21 (select (select .cse24 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse23 (store .cse24 .cse21 v_ArrVal_3929))) (let ((.cse22 (select (select .cse23 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (store (store (store (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_3938) .cse18 v_ArrVal_3922) .cse19 v_ArrVal_3924) .cse20 v_ArrVal_3926) .cse21 v_ArrVal_3928) .cse22 v_prenex_44) (select (select (store .cse23 .cse22 v_prenex_43) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_prenex_45))))))))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))))) is different from false [2024-11-08 18:07:41,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2144917933] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:07:41,481 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:07:41,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 15] total 27 [2024-11-08 18:07:41,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280813580] [2024-11-08 18:07:41,482 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:07:41,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-08 18:07:41,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:07:41,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-08 18:07:41,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=793, Unknown=13, NotChecked=884, Total=1806 [2024-11-08 18:07:41,483 INFO L87 Difference]: Start difference. First operand 926 states and 1074 transitions. Second operand has 28 states, 25 states have (on average 6.88) internal successors, (172), 27 states have internal predecessors, (172), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:08:35,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:08:35,253 INFO L93 Difference]: Finished difference Result 942 states and 1092 transitions. [2024-11-08 18:08:35,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-08 18:08:35,254 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 25 states have (on average 6.88) internal successors, (172), 27 states have internal predecessors, (172), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 113 [2024-11-08 18:08:35,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:08:35,256 INFO L225 Difference]: With dead ends: 942 [2024-11-08 18:08:35,256 INFO L226 Difference]: Without dead ends: 942 [2024-11-08 18:08:35,257 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 13 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 25.2s TimeCoverageRelationStatistics Valid=217, Invalid=1544, Unknown=13, NotChecked=1196, Total=2970 [2024-11-08 18:08:35,258 INFO L432 NwaCegarLoop]: 485 mSDtfsCounter, 767 mSDsluCounter, 7225 mSDsCounter, 0 mSdLazyCounter, 5603 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 769 SdHoareTripleChecker+Valid, 7710 SdHoareTripleChecker+Invalid, 5627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 5603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:08:35,258 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [769 Valid, 7710 Invalid, 5627 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [24 Valid, 5603 Invalid, 0 Unknown, 0 Unchecked, 50.6s Time] [2024-11-08 18:08:35,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2024-11-08 18:08:35,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 900. [2024-11-08 18:08:35,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 900 states, 681 states have (on average 1.52863436123348) internal successors, (1041), 894 states have internal predecessors, (1041), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:08:35,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1047 transitions. [2024-11-08 18:08:35,271 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1047 transitions. Word has length 113 [2024-11-08 18:08:35,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:08:35,272 INFO L471 AbstractCegarLoop]: Abstraction has 900 states and 1047 transitions. [2024-11-08 18:08:35,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 25 states have (on average 6.88) internal successors, (172), 27 states have internal predecessors, (172), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:08:35,272 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1047 transitions. [2024-11-08 18:08:35,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-08 18:08:35,273 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:08:35,273 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:08:35,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-08 18:08:35,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-11-08 18:08:35,474 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr113REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:08:35,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:08:35,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1918469685, now seen corresponding path program 1 times [2024-11-08 18:08:35,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:08:35,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138191176] [2024-11-08 18:08:35,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:08:35,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:08:35,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:08:36,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 18:08:36,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:08:36,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:08:36,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:08:36,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138191176] [2024-11-08 18:08:36,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138191176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:08:36,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:08:36,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:08:36,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155272857] [2024-11-08 18:08:36,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:08:36,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:08:36,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:08:36,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:08:36,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:08:36,091 INFO L87 Difference]: Start difference. First operand 900 states and 1047 transitions. Second operand has 6 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:08:44,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:08:44,894 INFO L93 Difference]: Finished difference Result 919 states and 1069 transitions. [2024-11-08 18:08:44,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:08:44,894 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 115 [2024-11-08 18:08:44,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:08:44,896 INFO L225 Difference]: With dead ends: 919 [2024-11-08 18:08:44,897 INFO L226 Difference]: Without dead ends: 919 [2024-11-08 18:08:44,897 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:08:44,897 INFO L432 NwaCegarLoop]: 762 mSDtfsCounter, 22 mSDsluCounter, 2218 mSDsCounter, 0 mSdLazyCounter, 886 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2980 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:08:44,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2980 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 886 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2024-11-08 18:08:44,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2024-11-08 18:08:44,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 899. [2024-11-08 18:08:44,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 899 states, 681 states have (on average 1.5271659324522762) internal successors, (1040), 893 states have internal predecessors, (1040), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:08:44,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 899 states to 899 states and 1046 transitions. [2024-11-08 18:08:44,911 INFO L78 Accepts]: Start accepts. Automaton has 899 states and 1046 transitions. Word has length 115 [2024-11-08 18:08:44,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:08:44,912 INFO L471 AbstractCegarLoop]: Abstraction has 899 states and 1046 transitions. [2024-11-08 18:08:44,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:08:44,912 INFO L276 IsEmpty]: Start isEmpty. Operand 899 states and 1046 transitions. [2024-11-08 18:08:44,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-08 18:08:44,913 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:08:44,913 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:08:44,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-11-08 18:08:44,914 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr114REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:08:44,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:08:44,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1918469684, now seen corresponding path program 1 times [2024-11-08 18:08:44,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:08:44,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591501738] [2024-11-08 18:08:44,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:08:44,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:08:44,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:08:45,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 18:08:45,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:08:45,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:08:45,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:08:45,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591501738] [2024-11-08 18:08:45,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591501738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:08:45,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:08:45,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:08:45,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216856625] [2024-11-08 18:08:45,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:08:45,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:08:45,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:08:45,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:08:45,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:08:45,573 INFO L87 Difference]: Start difference. First operand 899 states and 1046 transitions. Second operand has 6 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:08:54,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:08:54,608 INFO L93 Difference]: Finished difference Result 918 states and 1068 transitions. [2024-11-08 18:08:54,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:08:54,608 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 115 [2024-11-08 18:08:54,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:08:54,610 INFO L225 Difference]: With dead ends: 918 [2024-11-08 18:08:54,610 INFO L226 Difference]: Without dead ends: 918 [2024-11-08 18:08:54,610 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:08:54,611 INFO L432 NwaCegarLoop]: 762 mSDtfsCounter, 21 mSDsluCounter, 2198 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 2960 SdHoareTripleChecker+Invalid, 905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2024-11-08 18:08:54,611 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 2960 Invalid, 905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 902 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2024-11-08 18:08:54,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 918 states. [2024-11-08 18:08:54,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 918 to 898. [2024-11-08 18:08:54,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 898 states, 681 states have (on average 1.525697503671072) internal successors, (1039), 892 states have internal predecessors, (1039), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:08:54,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1045 transitions. [2024-11-08 18:08:54,623 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1045 transitions. Word has length 115 [2024-11-08 18:08:54,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:08:54,624 INFO L471 AbstractCegarLoop]: Abstraction has 898 states and 1045 transitions. [2024-11-08 18:08:54,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:08:54,624 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1045 transitions. [2024-11-08 18:08:54,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-08 18:08:54,625 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:08:54,625 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:08:54,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-11-08 18:08:54,626 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr115REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:08:54,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:08:54,626 INFO L85 PathProgramCache]: Analyzing trace with hash 656982609, now seen corresponding path program 1 times [2024-11-08 18:08:54,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:08:54,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621320263] [2024-11-08 18:08:54,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:08:54,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:08:54,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:08:59,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 18:08:59,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:08:59,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:08:59,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:08:59,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621320263] [2024-11-08 18:08:59,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621320263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:08:59,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:08:59,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-08 18:08:59,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201983625] [2024-11-08 18:08:59,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:08:59,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-08 18:08:59,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:08:59,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-08 18:08:59,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2024-11-08 18:08:59,862 INFO L87 Difference]: Start difference. First operand 898 states and 1045 transitions. Second operand has 20 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:09:39,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:09:39,036 INFO L93 Difference]: Finished difference Result 946 states and 1098 transitions. [2024-11-08 18:09:39,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-08 18:09:39,036 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 116 [2024-11-08 18:09:39,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:09:39,038 INFO L225 Difference]: With dead ends: 946 [2024-11-08 18:09:39,038 INFO L226 Difference]: Without dead ends: 946 [2024-11-08 18:09:39,039 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=135, Invalid=921, Unknown=0, NotChecked=0, Total=1056 [2024-11-08 18:09:39,039 INFO L432 NwaCegarLoop]: 496 mSDtfsCounter, 770 mSDsluCounter, 5800 mSDsCounter, 0 mSdLazyCounter, 4074 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 6296 SdHoareTripleChecker+Invalid, 4093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 4074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:09:39,040 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 6296 Invalid, 4093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 4074 Invalid, 0 Unknown, 0 Unchecked, 36.4s Time] [2024-11-08 18:09:39,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2024-11-08 18:09:39,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 927. [2024-11-08 18:09:39,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 927 states, 709 states have (on average 1.5063469675599437) internal successors, (1068), 920 states have internal predecessors, (1068), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-08 18:09:39,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1077 transitions. [2024-11-08 18:09:39,055 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1077 transitions. Word has length 116 [2024-11-08 18:09:39,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:09:39,055 INFO L471 AbstractCegarLoop]: Abstraction has 927 states and 1077 transitions. [2024-11-08 18:09:39,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:09:39,056 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1077 transitions. [2024-11-08 18:09:39,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-08 18:09:39,057 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:09:39,057 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:09:39,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-11-08 18:09:39,057 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr116REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:09:39,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:09:39,058 INFO L85 PathProgramCache]: Analyzing trace with hash 656982610, now seen corresponding path program 1 times [2024-11-08 18:09:39,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:09:39,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821546883] [2024-11-08 18:09:39,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:09:39,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:09:39,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:09:45,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 18:09:45,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:09:45,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:09:45,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:09:45,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821546883] [2024-11-08 18:09:45,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821546883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:09:45,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:09:45,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-08 18:09:45,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226915613] [2024-11-08 18:09:45,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:09:45,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-08 18:09:45,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:09:45,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-08 18:09:45,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2024-11-08 18:09:45,460 INFO L87 Difference]: Start difference. First operand 927 states and 1077 transitions. Second operand has 20 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:10:40,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:10:40,510 INFO L93 Difference]: Finished difference Result 945 states and 1097 transitions. [2024-11-08 18:10:40,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-08 18:10:40,511 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 116 [2024-11-08 18:10:40,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:10:40,514 INFO L225 Difference]: With dead ends: 945 [2024-11-08 18:10:40,514 INFO L226 Difference]: Without dead ends: 945 [2024-11-08 18:10:40,515 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=135, Invalid=921, Unknown=0, NotChecked=0, Total=1056 [2024-11-08 18:10:40,515 INFO L432 NwaCegarLoop]: 494 mSDtfsCounter, 749 mSDsluCounter, 6183 mSDsCounter, 0 mSdLazyCounter, 5248 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 6677 SdHoareTripleChecker+Invalid, 5264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 5248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:10:40,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 6677 Invalid, 5264 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 5248 Invalid, 0 Unknown, 0 Unchecked, 51.8s Time] [2024-11-08 18:10:40,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2024-11-08 18:10:40,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 927. [2024-11-08 18:10:40,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 927 states, 708 states have (on average 1.5070621468926553) internal successors, (1067), 920 states have internal predecessors, (1067), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-08 18:10:40,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1076 transitions. [2024-11-08 18:10:40,540 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1076 transitions. Word has length 116 [2024-11-08 18:10:40,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:10:40,541 INFO L471 AbstractCegarLoop]: Abstraction has 927 states and 1076 transitions. [2024-11-08 18:10:40,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:10:40,542 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1076 transitions. [2024-11-08 18:10:40,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-08 18:10:40,543 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:10:40,543 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:10:40,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-11-08 18:10:40,543 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr115REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:10:40,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:10:40,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1575945630, now seen corresponding path program 1 times [2024-11-08 18:10:40,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:10:40,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598823116] [2024-11-08 18:10:40,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:10:40,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:10:40,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:46,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 18:10:46,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:47,708 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:10:47,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:10:47,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598823116] [2024-11-08 18:10:47,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598823116] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:10:47,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513745078] [2024-11-08 18:10:47,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:10:47,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:10:47,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:10:47,711 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:10:47,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-08 18:10:48,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:48,172 INFO L255 TraceCheckSpWp]: Trace formula consists of 639 conjuncts, 62 conjuncts are in the unsatisfiable core [2024-11-08 18:10:48,178 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:10:48,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-08 18:10:49,762 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-08 18:10:49,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-08 18:10:50,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 18:10:50,147 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 18:10:51,274 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:10:51,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 48 [2024-11-08 18:10:51,297 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 1 [2024-11-08 18:10:51,892 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:10:51,892 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 48 [2024-11-08 18:10:51,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 1 [2024-11-08 18:10:52,542 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:10:52,542 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 48 [2024-11-08 18:10:52,602 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 1 [2024-11-08 18:10:53,266 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:10:53,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 48 [2024-11-08 18:10:53,290 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 1 [2024-11-08 18:10:53,999 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:10:54,000 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 48 [2024-11-08 18:10:54,023 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 1 [2024-11-08 18:10:54,668 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-08 18:10:55,390 INFO L349 Elim1Store]: treesize reduction 53, result has 14.5 percent of original size [2024-11-08 18:10:55,390 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 97 treesize of output 63 [2024-11-08 18:10:55,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 25 [2024-11-08 18:10:56,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 18:10:56,689 INFO L349 Elim1Store]: treesize reduction 57, result has 13.6 percent of original size [2024-11-08 18:10:56,689 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 89 treesize of output 58 [2024-11-08 18:10:56,726 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 25 [2024-11-08 18:10:56,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2024-11-08 18:10:57,407 INFO L349 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2024-11-08 18:10:57,407 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 16 [2024-11-08 18:10:57,426 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:10:57,426 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:10:57,618 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4565 (Array Int Int)) (v_ArrVal_4566 Int)) (= (select |c_#valid| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem62#1.base| (store (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem62#1.base|) (+ 40 |c_ULTIMATE.start_main_#t~mem62#1.offset|) v_ArrVal_4566)))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem62#1.base| v_ArrVal_4565) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) 1)) is different from false [2024-11-08 18:10:57,716 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4565 (Array Int Int)) (v_ArrVal_4566 Int) (|v_ULTIMATE.start_main_#t~mem62#1.offset_14| Int)) (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (or (= (select |c_#valid| (let ((.cse2 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| .cse2 (store (select |c_#memory_$Pointer$#1.base| .cse2) (+ |v_ULTIMATE.start_main_#t~mem62#1.offset_14| 40) v_ArrVal_4566)))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (select (select (store |c_#memory_$Pointer$#1.offset| .cse2 v_ArrVal_4565) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) 1) (< |v_ULTIMATE.start_main_#t~mem62#1.offset_14| (select (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))))) is different from false [2024-11-08 18:10:57,917 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4563 (Array Int Int)) (v_ArrVal_4565 (Array Int Int)) (v_ArrVal_4566 Int) (|v_ULTIMATE.start_main_#t~mem62#1.offset_14| Int)) (let ((.cse4 (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem60#1.base| v_ArrVal_4563)) (.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (or (= (select |c_#valid| (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem60#1.base| (store (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem60#1.base|) |c_ULTIMATE.start_main_#t~mem60#1.offset| |c_ULTIMATE.start_main_#t~malloc61#1.base|)))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (select (let ((.cse0 (store .cse2 .cse3 (store (select .cse2 .cse3) (+ |v_ULTIMATE.start_main_#t~mem62#1.offset_14| 40) v_ArrVal_4566)))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (select (select (store .cse4 .cse3 v_ArrVal_4565) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))))) 1) (< |v_ULTIMATE.start_main_#t~mem62#1.offset_14| (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))))) is different from false [2024-11-08 18:10:57,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 446 treesize of output 300 [2024-11-08 18:10:58,056 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4563 (Array Int Int)) (v_ArrVal_4565 (Array Int Int)) (v_ArrVal_4566 Int) (|v_ULTIMATE.start_main_#t~malloc61#1.base_16| Int) (|v_ULTIMATE.start_main_#t~mem62#1.offset_14| Int)) (let ((.cse0 (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem60#1.base| v_ArrVal_4563)) (.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (or (< |v_ULTIMATE.start_main_#t~mem62#1.offset_14| (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (= |v_ULTIMATE.start_main_#t~malloc61#1.base_16| (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem60#1.base| (store (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem60#1.base|) |c_ULTIMATE.start_main_#t~mem60#1.offset| |v_ULTIMATE.start_main_#t~malloc61#1.base_16|)))) (let ((.cse4 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (select (let ((.cse2 (store .cse3 .cse4 (store (select .cse3 .cse4) (+ |v_ULTIMATE.start_main_#t~mem62#1.offset_14| 40) v_ArrVal_4566)))) (select .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (select (select (store .cse0 .cse4 v_ArrVal_4565) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))) is different from false [2024-11-08 18:10:58,912 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4563 (Array Int Int)) (v_ArrVal_4565 (Array Int Int)) (v_ArrVal_4566 Int) (v_ArrVal_4558 (Array Int Int)) (v_ArrVal_4559 (Array Int Int)) (|v_ULTIMATE.start_main_#t~malloc61#1.base_16| Int) (|v_ULTIMATE.start_main_#t~mem62#1.offset_14| Int)) (let ((.cse5 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem59#1.base| v_ArrVal_4558)) (.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse7 (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem59#1.base| v_ArrVal_4559)) (.cse6 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse4 (store .cse7 .cse6 v_ArrVal_4563))) (or (= |v_ULTIMATE.start_main_#t~malloc61#1.base_16| (let ((.cse2 (store .cse5 .cse6 (store (select .cse5 .cse6) (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) |v_ULTIMATE.start_main_#t~malloc61#1.base_16|)))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (select (let ((.cse0 (store .cse2 .cse3 (store (select .cse2 .cse3) (+ |v_ULTIMATE.start_main_#t~mem62#1.offset_14| 40) v_ArrVal_4566)))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (select (select (store .cse4 .cse3 v_ArrVal_4565) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))))) (< |v_ULTIMATE.start_main_#t~mem62#1.offset_14| (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))))))) is different from false [2024-11-08 18:11:06,963 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4563 (Array Int Int)) (v_ArrVal_4565 (Array Int Int)) (v_ArrVal_4556 (Array Int Int)) (v_ArrVal_4557 (Array Int Int)) (v_ArrVal_4566 Int) (v_ArrVal_4558 (Array Int Int)) (v_ArrVal_4559 (Array Int Int)) (|v_ULTIMATE.start_main_#t~malloc61#1.base_16| Int) (|v_ULTIMATE.start_main_#t~mem62#1.offset_14| Int)) (let ((.cse9 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem58#1.base| v_ArrVal_4557)) (.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse8 (select (select .cse9 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse5 (store .cse9 .cse8 v_ArrVal_4558))) (let ((.cse7 (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem58#1.base| v_ArrVal_4556) .cse8 v_ArrVal_4559)) (.cse6 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse0 (store .cse7 .cse6 v_ArrVal_4563))) (or (< |v_ULTIMATE.start_main_#t~mem62#1.offset_14| (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (= |v_ULTIMATE.start_main_#t~malloc61#1.base_16| (let ((.cse3 (store .cse5 .cse6 (store (select .cse5 .cse6) (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) |v_ULTIMATE.start_main_#t~malloc61#1.base_16|)))) (let ((.cse4 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (select (let ((.cse2 (store .cse3 .cse4 (store (select .cse3 .cse4) (+ |v_ULTIMATE.start_main_#t~mem62#1.offset_14| 40) v_ArrVal_4566)))) (select .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (select (select (store .cse0 .cse4 v_ArrVal_4565) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))))))) is different from false [2024-11-08 18:11:07,047 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4563 (Array Int Int)) (v_ArrVal_4565 (Array Int Int)) (v_ArrVal_4556 (Array Int Int)) (v_ArrVal_4557 (Array Int Int)) (v_ArrVal_4566 Int) (v_ArrVal_4558 (Array Int Int)) (v_ArrVal_4559 (Array Int Int)) (|v_ULTIMATE.start_main_#t~malloc61#1.base_16| Int) (|v_ULTIMATE.start_main_#t~mem62#1.offset_14| Int)) (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse8 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse10 (store |c_#memory_$Pointer$#1.base| .cse8 v_ArrVal_4557))) (let ((.cse9 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse5 (store .cse10 .cse9 v_ArrVal_4558))) (let ((.cse7 (store (store |c_#memory_$Pointer$#1.offset| .cse8 v_ArrVal_4556) .cse9 v_ArrVal_4559)) (.cse6 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse0 (store .cse7 .cse6 v_ArrVal_4563))) (or (< |v_ULTIMATE.start_main_#t~mem62#1.offset_14| (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (= |v_ULTIMATE.start_main_#t~malloc61#1.base_16| (let ((.cse3 (store .cse5 .cse6 (store (select .cse5 .cse6) (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) |v_ULTIMATE.start_main_#t~malloc61#1.base_16|)))) (let ((.cse4 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (select (let ((.cse2 (store .cse3 .cse4 (store (select .cse3 .cse4) (+ |v_ULTIMATE.start_main_#t~mem62#1.offset_14| 40) v_ArrVal_4566)))) (select .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (select (select (store .cse0 .cse4 v_ArrVal_4565) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))))))))) is different from false [2024-11-08 18:11:07,197 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4563 (Array Int Int)) (v_ArrVal_4554 (Array Int Int)) (v_ArrVal_4565 (Array Int Int)) (v_ArrVal_4555 (Array Int Int)) (v_ArrVal_4556 (Array Int Int)) (v_ArrVal_4557 (Array Int Int)) (v_ArrVal_4566 Int) (v_ArrVal_4558 (Array Int Int)) (v_ArrVal_4559 (Array Int Int)) (|v_ULTIMATE.start_main_#t~malloc61#1.base_16| Int) (|v_ULTIMATE.start_main_#t~mem62#1.offset_14| Int)) (let ((.cse11 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem57#1.base| v_ArrVal_4555)) (.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse8 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse10 (store .cse11 .cse8 v_ArrVal_4557))) (let ((.cse9 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse5 (store .cse10 .cse9 v_ArrVal_4558))) (let ((.cse7 (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem57#1.base| v_ArrVal_4554) .cse8 v_ArrVal_4556) .cse9 v_ArrVal_4559)) (.cse6 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse4 (store .cse7 .cse6 v_ArrVal_4563))) (or (= (let ((.cse2 (store .cse5 .cse6 (store (select .cse5 .cse6) (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) |v_ULTIMATE.start_main_#t~malloc61#1.base_16|)))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (select (let ((.cse0 (store .cse2 .cse3 (store (select .cse2 .cse3) (+ |v_ULTIMATE.start_main_#t~mem62#1.offset_14| 40) v_ArrVal_4566)))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (select (select (store .cse4 .cse3 v_ArrVal_4565) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) |v_ULTIMATE.start_main_#t~malloc61#1.base_16|) (< |v_ULTIMATE.start_main_#t~mem62#1.offset_14| (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))))))))))) is different from false [2024-11-08 18:11:07,307 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4563 (Array Int Int)) (v_ArrVal_4554 (Array Int Int)) (v_ArrVal_4565 (Array Int Int)) (v_ArrVal_4555 (Array Int Int)) (v_ArrVal_4556 (Array Int Int)) (v_ArrVal_4557 (Array Int Int)) (v_ArrVal_4566 Int) (v_ArrVal_4558 (Array Int Int)) (v_ArrVal_4559 (Array Int Int)) (|v_ULTIMATE.start_main_#t~malloc61#1.base_16| Int) (|v_ULTIMATE.start_main_#t~mem62#1.offset_14| Int)) (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse8 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse12 (store |c_#memory_$Pointer$#1.base| .cse8 v_ArrVal_4555))) (let ((.cse9 (select (select .cse12 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse11 (store .cse12 .cse9 v_ArrVal_4557))) (let ((.cse10 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse5 (store .cse11 .cse10 v_ArrVal_4558))) (let ((.cse7 (store (store (store |c_#memory_$Pointer$#1.offset| .cse8 v_ArrVal_4554) .cse9 v_ArrVal_4556) .cse10 v_ArrVal_4559)) (.cse6 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse0 (store .cse7 .cse6 v_ArrVal_4563))) (or (< |v_ULTIMATE.start_main_#t~mem62#1.offset_14| (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (= |v_ULTIMATE.start_main_#t~malloc61#1.base_16| (let ((.cse3 (store .cse5 .cse6 (store (select .cse5 .cse6) (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) |v_ULTIMATE.start_main_#t~malloc61#1.base_16|)))) (let ((.cse4 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (select (let ((.cse2 (store .cse3 .cse4 (store (select .cse3 .cse4) (+ |v_ULTIMATE.start_main_#t~mem62#1.offset_14| 40) v_ArrVal_4566)))) (select .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (select (select (store .cse0 .cse4 v_ArrVal_4565) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))))))))))) is different from false [2024-11-08 18:11:07,461 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4566 Int) (|v_ULTIMATE.start_main_#t~malloc61#1.base_16| Int) (|v_ULTIMATE.start_main_#t~mem62#1.offset_14| Int) (v_ArrVal_4552 (Array Int Int)) (v_ArrVal_4563 (Array Int Int)) (v_ArrVal_4553 (Array Int Int)) (v_ArrVal_4554 (Array Int Int)) (v_ArrVal_4565 (Array Int Int)) (v_ArrVal_4555 (Array Int Int)) (v_ArrVal_4556 (Array Int Int)) (v_ArrVal_4557 (Array Int Int)) (v_ArrVal_4558 (Array Int Int)) (v_ArrVal_4559 (Array Int Int))) (let ((.cse13 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_4553)) (.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse8 (select (select .cse13 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse12 (store .cse13 .cse8 v_ArrVal_4555))) (let ((.cse9 (select (select .cse12 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse11 (store .cse12 .cse9 v_ArrVal_4557))) (let ((.cse10 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse5 (store .cse11 .cse10 v_ArrVal_4558))) (let ((.cse7 (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_4552) .cse8 v_ArrVal_4554) .cse9 v_ArrVal_4556) .cse10 v_ArrVal_4559)) (.cse6 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse4 (store .cse7 .cse6 v_ArrVal_4563))) (or (= |v_ULTIMATE.start_main_#t~malloc61#1.base_16| (let ((.cse2 (store .cse5 .cse6 (store (select .cse5 .cse6) (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) |v_ULTIMATE.start_main_#t~malloc61#1.base_16|)))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (select (let ((.cse0 (store .cse2 .cse3 (store (select .cse2 .cse3) (+ |v_ULTIMATE.start_main_#t~mem62#1.offset_14| 40) v_ArrVal_4566)))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (select (select (store .cse4 .cse3 v_ArrVal_4565) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))))) (< |v_ULTIMATE.start_main_#t~mem62#1.offset_14| (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))))))))))))) is different from false [2024-11-08 18:11:07,561 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4566 Int) (|v_ULTIMATE.start_main_#t~malloc61#1.base_16| Int) (|v_ULTIMATE.start_main_#t~mem62#1.offset_14| Int) (v_ArrVal_4552 (Array Int Int)) (v_ArrVal_4563 (Array Int Int)) (v_ArrVal_4553 (Array Int Int)) (v_ArrVal_4554 (Array Int Int)) (v_ArrVal_4565 (Array Int Int)) (v_ArrVal_4555 (Array Int Int)) (v_ArrVal_4556 (Array Int Int)) (v_ArrVal_4557 (Array Int Int)) (v_ArrVal_4558 (Array Int Int)) (v_ArrVal_4559 (Array Int Int))) (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse8 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse14 (store |c_#memory_$Pointer$#1.base| .cse8 v_ArrVal_4553))) (let ((.cse9 (select (select .cse14 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse13 (store .cse14 .cse9 v_ArrVal_4555))) (let ((.cse10 (select (select .cse13 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse12 (store .cse13 .cse10 v_ArrVal_4557))) (let ((.cse11 (select (select .cse12 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse5 (store .cse12 .cse11 v_ArrVal_4558))) (let ((.cse7 (store (store (store (store |c_#memory_$Pointer$#1.offset| .cse8 v_ArrVal_4552) .cse9 v_ArrVal_4554) .cse10 v_ArrVal_4556) .cse11 v_ArrVal_4559)) (.cse6 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse0 (store .cse7 .cse6 v_ArrVal_4563))) (or (< |v_ULTIMATE.start_main_#t~mem62#1.offset_14| (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (= |v_ULTIMATE.start_main_#t~malloc61#1.base_16| (let ((.cse3 (store .cse5 .cse6 (store (select .cse5 .cse6) (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) |v_ULTIMATE.start_main_#t~malloc61#1.base_16|)))) (let ((.cse4 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (select (let ((.cse2 (store .cse3 .cse4 (store (select .cse3 .cse4) (+ |v_ULTIMATE.start_main_#t~mem62#1.offset_14| 40) v_ArrVal_4566)))) (select .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (select (select (store .cse0 .cse4 v_ArrVal_4565) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))))))))))))) is different from false [2024-11-08 18:11:08,053 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4566 Int) (|v_ULTIMATE.start_main_#t~malloc61#1.base_16| Int) (|v_ULTIMATE.start_main_#t~mem62#1.offset_14| Int) (v_ArrVal_4571 (Array Int Int)) (v_ArrVal_4572 (Array Int Int)) (v_ArrVal_4552 (Array Int Int)) (v_ArrVal_4563 (Array Int Int)) (v_ArrVal_4553 (Array Int Int)) (v_ArrVal_4554 (Array Int Int)) (v_ArrVal_4565 (Array Int Int)) (v_ArrVal_4555 (Array Int Int)) (v_ArrVal_4556 (Array Int Int)) (v_ArrVal_4557 (Array Int Int)) (v_ArrVal_4558 (Array Int Int)) (v_ArrVal_4559 (Array Int Int))) (let ((.cse15 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_4572)) (.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse8 (select (select .cse15 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse14 (store .cse15 .cse8 v_ArrVal_4553))) (let ((.cse9 (select (select .cse14 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse13 (store .cse14 .cse9 v_ArrVal_4555))) (let ((.cse10 (select (select .cse13 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse12 (store .cse13 .cse10 v_ArrVal_4557))) (let ((.cse11 (select (select .cse12 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse5 (store .cse12 .cse11 v_ArrVal_4558))) (let ((.cse7 (store (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_4571) .cse8 v_ArrVal_4552) .cse9 v_ArrVal_4554) .cse10 v_ArrVal_4556) .cse11 v_ArrVal_4559)) (.cse6 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (let ((.cse4 (store .cse7 .cse6 v_ArrVal_4563))) (or (= |v_ULTIMATE.start_main_#t~malloc61#1.base_16| (let ((.cse2 (store .cse5 .cse6 (store (select .cse5 .cse6) (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) |v_ULTIMATE.start_main_#t~malloc61#1.base_16|)))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (select (let ((.cse0 (store .cse2 .cse3 (store (select .cse2 .cse3) (+ |v_ULTIMATE.start_main_#t~mem62#1.offset_14| 40) v_ArrVal_4566)))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (select (select (store .cse4 .cse3 v_ArrVal_4565) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))))) (< |v_ULTIMATE.start_main_#t~mem62#1.offset_14| (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))))))))))))))) is different from false [2024-11-08 18:11:08,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513745078] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:11:08,067 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:11:08,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 17] total 33 [2024-11-08 18:11:08,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16740460] [2024-11-08 18:11:08,068 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:11:08,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-08 18:11:08,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:11:08,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-08 18:11:08,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=1107, Unknown=21, NotChecked=948, Total=2256 [2024-11-08 18:11:08,069 INFO L87 Difference]: Start difference. First operand 927 states and 1076 transitions. Second operand has 34 states, 31 states have (on average 6.096774193548387) internal successors, (189), 33 states have internal predecessors, (189), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:12:08,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:12:08,212 INFO L93 Difference]: Finished difference Result 943 states and 1095 transitions. [2024-11-08 18:12:08,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-08 18:12:08,212 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 31 states have (on average 6.096774193548387) internal successors, (189), 33 states have internal predecessors, (189), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 117 [2024-11-08 18:12:08,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:12:08,214 INFO L225 Difference]: With dead ends: 943 [2024-11-08 18:12:08,214 INFO L226 Difference]: Without dead ends: 943 [2024-11-08 18:12:08,215 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 12 IntricatePredicates, 0 DeprecatedPredicates, 548 ImplicationChecksByTransitivity, 21.9s TimeCoverageRelationStatistics Valid=322, Invalid=2155, Unknown=21, NotChecked=1284, Total=3782 [2024-11-08 18:12:08,215 INFO L432 NwaCegarLoop]: 488 mSDtfsCounter, 711 mSDsluCounter, 9558 mSDsCounter, 0 mSdLazyCounter, 6350 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 55.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 713 SdHoareTripleChecker+Valid, 10046 SdHoareTripleChecker+Invalid, 6372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 6350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:12:08,216 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [713 Valid, 10046 Invalid, 6372 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [22 Valid, 6350 Invalid, 0 Unknown, 0 Unchecked, 56.0s Time] [2024-11-08 18:12:08,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 943 states. [2024-11-08 18:12:08,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 943 to 926. [2024-11-08 18:12:08,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 708 states have (on average 1.5056497175141244) internal successors, (1066), 919 states have internal predecessors, (1066), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-08 18:12:08,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1075 transitions. [2024-11-08 18:12:08,230 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1075 transitions. Word has length 117 [2024-11-08 18:12:08,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:12:08,230 INFO L471 AbstractCegarLoop]: Abstraction has 926 states and 1075 transitions. [2024-11-08 18:12:08,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 31 states have (on average 6.096774193548387) internal successors, (189), 33 states have internal predecessors, (189), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:12:08,231 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1075 transitions. [2024-11-08 18:12:08,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-08 18:12:08,232 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:12:08,232 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:12:08,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-08 18:12:08,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:12:08,433 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr116REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:12:08,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:12:08,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1575945631, now seen corresponding path program 1 times [2024-11-08 18:12:08,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:12:08,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294645788] [2024-11-08 18:12:08,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:12:08,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:12:08,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:12:14,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 18:12:14,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:12:15,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:12:15,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:12:15,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294645788] [2024-11-08 18:12:15,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294645788] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:12:15,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18517204] [2024-11-08 18:12:15,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:12:15,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:12:15,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:12:15,416 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:12:15,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-08 18:12:15,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:12:15,909 INFO L255 TraceCheckSpWp]: Trace formula consists of 639 conjuncts, 73 conjuncts are in the unsatisfiable core [2024-11-08 18:12:15,915 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:12:15,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-08 18:12:17,335 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-08 18:12:17,336 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-08 18:12:17,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 18:12:17,669 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 18:12:18,643 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:12:18,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 48 [2024-11-08 18:12:18,664 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 1 [2024-11-08 18:12:19,189 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:12:19,189 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 48 [2024-11-08 18:12:19,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 1 [2024-11-08 18:12:19,758 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:12:19,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 48 [2024-11-08 18:12:19,779 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 1 [2024-11-08 18:12:20,376 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:12:20,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 48 [2024-11-08 18:12:20,396 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 1 [2024-11-08 18:12:21,001 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-08 18:12:21,001 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 48 [2024-11-08 18:12:21,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 1 [2024-11-08 18:12:21,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 18:12:22,274 INFO L349 Elim1Store]: treesize reduction 53, result has 14.5 percent of original size [2024-11-08 18:12:22,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 72 [2024-11-08 18:12:22,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 41 [2024-11-08 18:12:23,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 18:12:23,722 INFO L349 Elim1Store]: treesize reduction 57, result has 13.6 percent of original size [2024-11-08 18:12:23,722 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 125 treesize of output 82 [2024-11-08 18:12:23,862 INFO L349 Elim1Store]: treesize reduction 39, result has 25.0 percent of original size [2024-11-08 18:12:23,863 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 87 treesize of output 47 [2024-11-08 18:12:24,816 INFO L349 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2024-11-08 18:12:24,816 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 29 [2024-11-08 18:12:24,847 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:12:24,847 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:12:26,613 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem62#1.base|)) (.cse7 (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem62#1.base|)) (.cse1 (+ 40 |c_ULTIMATE.start_main_#t~mem62#1.offset|)) (.cse6 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_4807 (Array Int Int))) (or (not (= v_ArrVal_4807 (store .cse0 .cse1 (select v_ArrVal_4807 .cse1)))) (forall ((v_ArrVal_4808 Int)) (let ((.cse2 (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem62#1.base| v_ArrVal_4807)) (.cse5 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem62#1.base| (store .cse7 .cse1 v_ArrVal_4808)))) (let ((.cse3 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse6)) (.cse4 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse6))) (<= (+ 384 (select (select .cse2 .cse3) .cse4)) (select |c_#length| (select (select .cse5 .cse3) .cse4)))))))) (forall ((v_ArrVal_4807 (Array Int Int))) (or (not (= v_ArrVal_4807 (store .cse0 .cse1 (select v_ArrVal_4807 .cse1)))) (forall ((v_ArrVal_4808 Int)) (<= 0 (let ((.cse8 (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem62#1.base| v_ArrVal_4807))) (select (select .cse8 (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem62#1.base| (store .cse7 .cse1 v_ArrVal_4808)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse6)) (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) .cse6))))))))) is different from false [2024-11-08 18:12:26,882 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse5 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse6 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (let ((.cse9 (select |c_#memory_$Pointer$#1.offset| .cse6)) (.cse7 (select |c_#memory_$Pointer$#1.base| .cse6)) (.cse0 (select (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (and (forall ((|v_ULTIMATE.start_main_#t~mem62#1.offset_17| Int)) (or (< |v_ULTIMATE.start_main_#t~mem62#1.offset_17| .cse0) (forall ((v_ArrVal_4807 (Array Int Int))) (let ((.cse8 (+ |v_ULTIMATE.start_main_#t~mem62#1.offset_17| 40))) (or (forall ((v_ArrVal_4808 Int)) (let ((.cse1 (store |c_#memory_$Pointer$#1.offset| .cse6 v_ArrVal_4807)) (.cse4 (store |c_#memory_$Pointer$#1.base| .cse6 (store .cse7 .cse8 v_ArrVal_4808)))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5)) (.cse3 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (<= (+ (select (select .cse1 .cse2) .cse3) 384) (select |c_#length| (select (select .cse4 .cse2) .cse3)))))) (not (= (store .cse9 .cse8 (select v_ArrVal_4807 .cse8)) v_ArrVal_4807))))))) (forall ((|v_ULTIMATE.start_main_#t~mem62#1.offset_17| Int)) (or (forall ((v_ArrVal_4807 (Array Int Int))) (let ((.cse10 (+ |v_ULTIMATE.start_main_#t~mem62#1.offset_17| 40))) (or (not (= (store .cse9 .cse10 (select v_ArrVal_4807 .cse10)) v_ArrVal_4807)) (forall ((v_ArrVal_4808 Int)) (<= 0 (let ((.cse11 (store |c_#memory_$Pointer$#1.offset| .cse6 v_ArrVal_4807))) (select (select .cse11 (select (select (store |c_#memory_$Pointer$#1.base| .cse6 (store .cse7 .cse10 v_ArrVal_4808)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5)) (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5)))))))) (< |v_ULTIMATE.start_main_#t~mem62#1.offset_17| .cse0))))))) is different from false [2024-11-08 18:12:27,443 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse7 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem60#1.base| (store (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem60#1.base|) |c_ULTIMATE.start_main_#t~mem60#1.offset| |c_ULTIMATE.start_main_#t~malloc61#1.base|))) (.cse6 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse10 (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem60#1.base| (store (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem60#1.base|) |c_ULTIMATE.start_main_#t~mem60#1.offset| |c_ULTIMATE.start_main_#t~malloc61#1.offset|))) (.cse8 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse6))) (let ((.cse9 (select .cse7 .cse8)) (.cse0 (select .cse10 .cse8)) (.cse11 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse6))) (and (forall ((|v_ULTIMATE.start_main_#t~mem62#1.offset_17| Int)) (or (forall ((v_ArrVal_4807 (Array Int Int))) (let ((.cse1 (+ |v_ULTIMATE.start_main_#t~mem62#1.offset_17| 40))) (or (not (= (store .cse0 .cse1 (select v_ArrVal_4807 .cse1)) v_ArrVal_4807)) (forall ((v_ArrVal_4808 Int)) (let ((.cse2 (store .cse10 .cse8 v_ArrVal_4807)) (.cse5 (store .cse7 .cse8 (store .cse9 .cse1 v_ArrVal_4808)))) (let ((.cse3 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse6)) (.cse4 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse6))) (<= (+ (select (select .cse2 .cse3) .cse4) 384) (select |c_#length| (select (select .cse5 .cse3) .cse4))))))))) (< |v_ULTIMATE.start_main_#t~mem62#1.offset_17| .cse11))) (forall ((|v_ULTIMATE.start_main_#t~mem62#1.offset_17| Int)) (or (forall ((v_ArrVal_4807 (Array Int Int))) (let ((.cse13 (+ |v_ULTIMATE.start_main_#t~mem62#1.offset_17| 40))) (or (forall ((v_ArrVal_4808 Int)) (<= 0 (let ((.cse12 (store .cse10 .cse8 v_ArrVal_4807))) (select (select .cse12 (select (select (store .cse7 .cse8 (store .cse9 .cse13 v_ArrVal_4808)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse6)) (select (select .cse12 |c_ULTIMATE.start_main_~user~0#1.base|) .cse6))))) (not (= (store .cse0 .cse13 (select v_ArrVal_4807 .cse13)) v_ArrVal_4807))))) (< |v_ULTIMATE.start_main_#t~mem62#1.offset_17| .cse11))))))) is different from false [2024-11-08 18:12:27,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 942 treesize of output 791 [2024-11-08 18:12:28,822 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem60#1.base| (store (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem60#1.base|) |c_ULTIMATE.start_main_#t~mem60#1.offset| 0))) (.cse5 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse6 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5)) (.cse7 (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem60#1.base|))) (and (forall ((v_ArrVal_4807 (Array Int Int)) (|v_ULTIMATE.start_main_#t~malloc61#1.base_19| Int) (|v_ULTIMATE.start_main_#t~mem62#1.offset_17| Int) (v_ArrVal_4808 Int)) (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem60#1.base| (store .cse7 |c_ULTIMATE.start_main_#t~mem60#1.offset| |v_ULTIMATE.start_main_#t~malloc61#1.base_19|)))) (let ((.cse2 (+ |v_ULTIMATE.start_main_#t~mem62#1.offset_17| 40)) (.cse1 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (or (not (= (store (select .cse0 .cse1) .cse2 (select v_ArrVal_4807 .cse2)) v_ArrVal_4807)) (< (let ((.cse3 (store .cse0 .cse1 v_ArrVal_4807))) (select (select .cse3 (select (select (store .cse4 .cse1 (store (select .cse4 .cse1) .cse2 v_ArrVal_4808)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5)) (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) 1) (< |v_ULTIMATE.start_main_#t~mem62#1.offset_17| .cse6))))) (forall ((v_ArrVal_4807 (Array Int Int)) (|v_ULTIMATE.start_main_#t~malloc61#1.base_19| Int) (|v_ULTIMATE.start_main_#t~mem62#1.offset_17| Int) (v_ArrVal_4808 Int)) (let ((.cse11 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem60#1.base| (store .cse7 |c_ULTIMATE.start_main_#t~mem60#1.offset| |v_ULTIMATE.start_main_#t~malloc61#1.base_19|)))) (let ((.cse9 (+ |v_ULTIMATE.start_main_#t~mem62#1.offset_17| 40)) (.cse8 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (or (not (= (store (select .cse0 .cse8) .cse9 (select v_ArrVal_4807 .cse9)) v_ArrVal_4807)) (< |v_ULTIMATE.start_main_#t~mem62#1.offset_17| .cse6) (= |v_ULTIMATE.start_main_#t~malloc61#1.base_19| (select (let ((.cse10 (store .cse11 .cse8 (store (select .cse11 .cse8) .cse9 v_ArrVal_4808)))) (select .cse10 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (select (select (store .cse0 .cse8 v_ArrVal_4807) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))))))) (forall ((|v_ULTIMATE.start_main_#t~malloc61#1.base_19| Int) (v_prenex_63 (Array Int Int)) (v_prenex_65 Int) (v_prenex_64 Int)) (let ((.cse15 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem60#1.base| (store .cse7 |c_ULTIMATE.start_main_#t~mem60#1.offset| |v_ULTIMATE.start_main_#t~malloc61#1.base_19|)))) (let ((.cse13 (+ 40 v_prenex_64)) (.cse12 (select (select .cse15 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (or (< v_prenex_64 .cse6) (not (= v_prenex_63 (store (select .cse0 .cse12) .cse13 (select v_prenex_63 .cse13)))) (< 0 (+ (let ((.cse14 (store .cse0 .cse12 v_prenex_63))) (select (select .cse14 (select (select (store .cse15 .cse12 (store (select .cse15 .cse12) .cse13 v_prenex_65)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5)) (select (select .cse14 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) 1))))))))) is different from false [2024-11-08 18:12:31,647 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-11-08 18:12:31,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 101 [2024-11-08 18:12:31,649 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-11-08 18:12:31,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-08 18:12:31,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2024-11-08 18:12:31,850 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:67) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.checkRedundancy(SimplifyDDA2.java:275) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convertForPreprocessedInputTerms(SimplifyDDA2.java:499) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:484) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:590) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:245) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:318) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:728) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.pushInner(QuantifierPusher.java:274) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:194) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:234) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:395) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:267) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:324) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:180) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:159) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:273) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 67 more [2024-11-08 18:12:31,855 INFO L158 Benchmark]: Toolchain (without parser) took 769440.59ms. Allocated memory was 157.3MB in the beginning and 461.4MB in the end (delta: 304.1MB). Free memory was 120.7MB in the beginning and 170.8MB in the end (delta: -50.0MB). Peak memory consumption was 256.6MB. Max. memory is 16.1GB. [2024-11-08 18:12:31,855 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 96.5MB. Free memory is still 45.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:12:31,855 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1056.16ms. Allocated memory is still 157.3MB. Free memory was 120.4MB in the beginning and 83.1MB in the end (delta: 37.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-11-08 18:12:31,855 INFO L158 Benchmark]: Boogie Procedure Inliner took 124.66ms. Allocated memory is still 157.3MB. Free memory was 83.1MB in the beginning and 74.7MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-08 18:12:31,855 INFO L158 Benchmark]: Boogie Preprocessor took 244.43ms. Allocated memory was 157.3MB in the beginning and 207.6MB in the end (delta: 50.3MB). Free memory was 74.7MB in the beginning and 161.2MB in the end (delta: -86.5MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2024-11-08 18:12:31,861 INFO L158 Benchmark]: RCFGBuilder took 2791.70ms. Allocated memory is still 207.6MB. Free memory was 161.2MB in the beginning and 146.9MB in the end (delta: 14.4MB). Peak memory consumption was 96.2MB. Max. memory is 16.1GB. [2024-11-08 18:12:31,861 INFO L158 Benchmark]: TraceAbstraction took 765212.42ms. Allocated memory was 207.6MB in the beginning and 461.4MB in the end (delta: 253.8MB). Free memory was 145.8MB in the beginning and 170.8MB in the end (delta: -25.0MB). Peak memory consumption was 228.6MB. Max. memory is 16.1GB. [2024-11-08 18:12:31,862 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 96.5MB. Free memory is still 45.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1056.16ms. Allocated memory is still 157.3MB. Free memory was 120.4MB in the beginning and 83.1MB in the end (delta: 37.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 124.66ms. Allocated memory is still 157.3MB. Free memory was 83.1MB in the beginning and 74.7MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 244.43ms. Allocated memory was 157.3MB in the beginning and 207.6MB in the end (delta: 50.3MB). Free memory was 74.7MB in the beginning and 161.2MB in the end (delta: -86.5MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. * RCFGBuilder took 2791.70ms. Allocated memory is still 207.6MB. Free memory was 161.2MB in the beginning and 146.9MB in the end (delta: 14.4MB). Peak memory consumption was 96.2MB. Max. memory is 16.1GB. * TraceAbstraction took 765212.42ms. Allocated memory was 207.6MB in the beginning and 461.4MB in the end (delta: 253.8MB). Free memory was 145.8MB in the beginning and 170.8MB in the end (delta: -25.0MB). Peak memory consumption was 228.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e277983cfe4b30513b023d34f2b840358d8a25fd7a5c39241cadd105379bfb92 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:12:34,266 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:12:34,380 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-08 18:12:34,386 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:12:34,387 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:12:34,435 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:12:34,438 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:12:34,441 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:12:34,442 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:12:34,442 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:12:34,442 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:12:34,443 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:12:34,444 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:12:34,445 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:12:34,448 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:12:34,448 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:12:34,449 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:12:34,449 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:12:34,449 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:12:34,450 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:12:34,450 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-08 18:12:34,454 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-08 18:12:34,454 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-08 18:12:34,454 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:12:34,455 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 18:12:34,455 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 18:12:34,455 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:12:34,456 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 18:12:34,456 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:12:34,456 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:12:34,456 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:12:34,457 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:12:34,457 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:12:34,461 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:12:34,462 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:12:34,462 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:12:34,462 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:12:34,463 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:12:34,463 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 18:12:34,463 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 18:12:34,464 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:12:34,465 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:12:34,465 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:12:34,466 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:12:34,466 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e277983cfe4b30513b023d34f2b840358d8a25fd7a5c39241cadd105379bfb92 [2024-11-08 18:12:34,880 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:12:34,902 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:12:34,904 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:12:34,906 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:12:34,906 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:12:34,908 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test2-1.i Unable to find full path for "g++" [2024-11-08 18:12:36,940 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:12:37,381 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:12:37,382 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test2-1.i [2024-11-08 18:12:37,406 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/data/9755900d3/ed525d4a90a0406bafa79bc34bffe9c1/FLAG47e42ccb7 [2024-11-08 18:12:37,429 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/data/9755900d3/ed525d4a90a0406bafa79bc34bffe9c1 [2024-11-08 18:12:37,435 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:12:37,438 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:12:37,440 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:12:37,440 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:12:37,447 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:12:37,448 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:12:37" (1/1) ... [2024-11-08 18:12:37,449 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@702bb9b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:12:37, skipping insertion in model container [2024-11-08 18:12:37,449 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:12:37" (1/1) ... [2024-11-08 18:12:37,537 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:12:38,155 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:12:38,212 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:12:38,220 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:12:38,227 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:12:38,241 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:12:38,297 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:12:38,298 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:12:38,302 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:12:38,302 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:12:38,330 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:12:38,355 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:12:38,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:12:38,598 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:12:38,599 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:12:38 WrapperNode [2024-11-08 18:12:38,599 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:12:38,600 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:12:38,601 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:12:38,601 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:12:38,609 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:12:38" (1/1) ... [2024-11-08 18:12:38,639 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:12:38" (1/1) ... [2024-11-08 18:12:38,690 INFO L138 Inliner]: procedures = 210, calls = 222, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 862 [2024-11-08 18:12:38,691 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:12:38,692 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:12:38,692 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:12:38,692 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:12:38,703 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:12:38" (1/1) ... [2024-11-08 18:12:38,704 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:12:38" (1/1) ... [2024-11-08 18:12:38,717 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:12:38" (1/1) ... [2024-11-08 18:12:38,801 INFO L175 MemorySlicer]: Split 206 memory accesses to 3 slices as follows [2, 34, 170]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 46 writes are split as follows [0, 4, 42]. [2024-11-08 18:12:38,801 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:12:38" (1/1) ... [2024-11-08 18:12:38,801 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:12:38" (1/1) ... [2024-11-08 18:12:38,859 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:12:38" (1/1) ... [2024-11-08 18:12:38,878 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:12:38" (1/1) ... [2024-11-08 18:12:38,885 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:12:38" (1/1) ... [2024-11-08 18:12:38,893 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:12:38" (1/1) ... [2024-11-08 18:12:38,907 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:12:38,910 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:12:38,910 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:12:38,911 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:12:38,911 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:12:38" (1/1) ... [2024-11-08 18:12:38,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:12:38,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:12:38,962 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:12:38,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:12:38,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-08 18:12:38,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-08 18:12:38,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-08 18:12:38,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-08 18:12:38,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-08 18:12:38,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-08 18:12:38,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-08 18:12:38,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-08 18:12:38,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-08 18:12:38,995 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-08 18:12:38,995 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-08 18:12:38,996 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-08 18:12:38,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 18:12:38,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-08 18:12:38,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-08 18:12:38,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-08 18:12:38,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-08 18:12:38,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-08 18:12:38,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-08 18:12:38,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 18:12:38,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 18:12:38,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-08 18:12:38,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-08 18:12:38,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 18:12:38,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:12:38,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-08 18:12:38,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-08 18:12:38,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-08 18:12:38,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:12:38,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:12:39,253 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:12:39,255 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:12:39,260 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-08 18:12:39,335 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-08 18:12:39,369 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-08 18:12:43,855 INFO L? ?]: Removed 866 outVars from TransFormulas that were not future-live. [2024-11-08 18:12:43,855 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:12:43,885 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:12:43,886 INFO L316 CfgBuilder]: Removed 50 assume(true) statements. [2024-11-08 18:12:43,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:12:43 BoogieIcfgContainer [2024-11-08 18:12:43,887 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:12:43,889 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:12:43,889 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:12:43,892 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:12:43,893 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:12:37" (1/3) ... [2024-11-08 18:12:43,893 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e15492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:12:43, skipping insertion in model container [2024-11-08 18:12:43,894 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:12:38" (2/3) ... [2024-11-08 18:12:43,894 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e15492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:12:43, skipping insertion in model container [2024-11-08 18:12:43,894 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:12:43" (3/3) ... [2024-11-08 18:12:43,896 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_nondet_test2-1.i [2024-11-08 18:12:43,917 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:12:43,918 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 420 error locations. [2024-11-08 18:12:43,983 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:12:43,990 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@512cc30c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:12:43,990 INFO L334 AbstractCegarLoop]: Starting to check reachability of 420 error locations. [2024-11-08 18:12:43,997 INFO L276 IsEmpty]: Start isEmpty. Operand has 863 states, 441 states have (on average 2.1859410430839) internal successors, (964), 858 states have internal predecessors, (964), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:12:44,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-08 18:12:44,003 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:12:44,004 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-08 18:12:44,005 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr419ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:12:44,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:12:44,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1758111, now seen corresponding path program 1 times [2024-11-08 18:12:44,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:12:44,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [382319842] [2024-11-08 18:12:44,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:12:44,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:12:44,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:12:44,026 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:12:44,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:12:44,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:12:44,196 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:12:44,202 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:12:44,354 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_46| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_46|)) (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_46| (_ bv0 1)) |c_#valid|))) is different from true [2024-11-08 18:12:44,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:12:44,357 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:12:44,358 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:12:44,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [382319842] [2024-11-08 18:12:44,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [382319842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:12:44,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:12:44,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:12:44,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008077929] [2024-11-08 18:12:44,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:12:44,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:12:44,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:12:44,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:12:44,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-08 18:12:44,414 INFO L87 Difference]: Start difference. First operand has 863 states, 441 states have (on average 2.1859410430839) internal successors, (964), 858 states have internal predecessors, (964), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:12:47,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:12:47,006 INFO L93 Difference]: Finished difference Result 1068 states and 1154 transitions. [2024-11-08 18:12:47,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:12:47,009 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-08 18:12:47,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:12:47,028 INFO L225 Difference]: With dead ends: 1068 [2024-11-08 18:12:47,028 INFO L226 Difference]: Without dead ends: 1065 [2024-11-08 18:12:47,030 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-08 18:12:47,034 INFO L432 NwaCegarLoop]: 796 mSDtfsCounter, 237 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 1265 SdHoareTripleChecker+Invalid, 1695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1155 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:12:47,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 1265 Invalid, 1695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 540 Invalid, 0 Unknown, 1155 Unchecked, 2.5s Time] [2024-11-08 18:12:47,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2024-11-08 18:12:47,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 851. [2024-11-08 18:12:47,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 435 states have (on average 2.057471264367816) internal successors, (895), 846 states have internal predecessors, (895), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:12:47,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 901 transitions. [2024-11-08 18:12:47,161 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 901 transitions. Word has length 4 [2024-11-08 18:12:47,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:12:47,162 INFO L471 AbstractCegarLoop]: Abstraction has 851 states and 901 transitions. [2024-11-08 18:12:47,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:12:47,163 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 901 transitions. [2024-11-08 18:12:47,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-08 18:12:47,163 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:12:47,164 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-08 18:12:47,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 18:12:47,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:12:47,366 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:12:47,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:12:47,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1756837, now seen corresponding path program 1 times [2024-11-08 18:12:47,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:12:47,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [349089389] [2024-11-08 18:12:47,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:12:47,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:12:47,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:12:47,370 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:12:47,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 18:12:47,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:12:47,524 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:12:47,525 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:12:47,547 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-08 18:12:47,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:12:47,564 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:12:47,564 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:12:47,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349089389] [2024-11-08 18:12:47,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [349089389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:12:47,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:12:47,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:12:47,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531292604] [2024-11-08 18:12:47,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:12:47,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:12:47,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:12:47,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:12:47,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:12:47,572 INFO L87 Difference]: Start difference. First operand 851 states and 901 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:12:49,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:12:49,136 INFO L93 Difference]: Finished difference Result 848 states and 899 transitions. [2024-11-08 18:12:49,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:12:49,137 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-08 18:12:49,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:12:49,140 INFO L225 Difference]: With dead ends: 848 [2024-11-08 18:12:49,141 INFO L226 Difference]: Without dead ends: 848 [2024-11-08 18:12:49,141 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:12:49,143 INFO L432 NwaCegarLoop]: 514 mSDtfsCounter, 783 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:12:49,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [786 Valid, 558 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-08 18:12:49,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2024-11-08 18:12:49,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 848. [2024-11-08 18:12:49,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 443 states have (on average 2.015801354401806) internal successors, (893), 843 states have internal predecessors, (893), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:12:49,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 899 transitions. [2024-11-08 18:12:49,170 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 899 transitions. Word has length 4 [2024-11-08 18:12:49,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:12:49,171 INFO L471 AbstractCegarLoop]: Abstraction has 848 states and 899 transitions. [2024-11-08 18:12:49,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:12:49,171 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 899 transitions. [2024-11-08 18:12:49,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-08 18:12:49,172 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:12:49,172 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-08 18:12:49,198 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 18:12:49,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:12:49,373 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:12:49,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:12:49,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1756838, now seen corresponding path program 1 times [2024-11-08 18:12:49,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:12:49,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1751401025] [2024-11-08 18:12:49,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:12:49,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:12:49,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:12:49,377 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:12:49,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 18:12:49,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:12:49,507 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:12:49,509 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:12:49,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-08 18:12:49,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:12:49,559 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:12:49,559 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:12:49,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1751401025] [2024-11-08 18:12:49,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1751401025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:12:49,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:12:49,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:12:49,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671137121] [2024-11-08 18:12:49,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:12:49,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:12:49,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:12:49,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:12:49,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:12:49,561 INFO L87 Difference]: Start difference. First operand 848 states and 899 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:12:52,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:12:52,027 INFO L93 Difference]: Finished difference Result 1061 states and 1135 transitions. [2024-11-08 18:12:52,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:12:52,028 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-08 18:12:52,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:12:52,032 INFO L225 Difference]: With dead ends: 1061 [2024-11-08 18:12:52,032 INFO L226 Difference]: Without dead ends: 1061 [2024-11-08 18:12:52,032 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:12:52,034 INFO L432 NwaCegarLoop]: 796 mSDtfsCounter, 236 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 1267 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:12:52,034 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 1267 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-08 18:12:52,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2024-11-08 18:12:52,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 975. [2024-11-08 18:12:52,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 975 states, 571 states have (on average 1.9719789842381787) internal successors, (1126), 970 states have internal predecessors, (1126), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:12:52,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 975 states to 975 states and 1132 transitions. [2024-11-08 18:12:52,066 INFO L78 Accepts]: Start accepts. Automaton has 975 states and 1132 transitions. Word has length 4 [2024-11-08 18:12:52,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:12:52,066 INFO L471 AbstractCegarLoop]: Abstraction has 975 states and 1132 transitions. [2024-11-08 18:12:52,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:12:52,067 INFO L276 IsEmpty]: Start isEmpty. Operand 975 states and 1132 transitions. [2024-11-08 18:12:52,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 18:12:52,068 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:12:52,068 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:12:52,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-08 18:12:52,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:12:52,269 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:12:52,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:12:52,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1021429073, now seen corresponding path program 1 times [2024-11-08 18:12:52,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:12:52,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [453160069] [2024-11-08 18:12:52,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:12:52,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:12:52,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:12:52,273 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:12:52,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 18:12:52,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:12:52,405 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 18:12:52,408 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:12:52,423 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-08 18:12:52,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-08 18:12:52,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 18:12:52,560 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2024-11-08 18:12:52,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 18:12:52,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-08 18:12:52,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:12:52,623 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:12:52,624 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:12:52,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453160069] [2024-11-08 18:12:52,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453160069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:12:52,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:12:52,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:12:52,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682264619] [2024-11-08 18:12:52,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:12:52,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:12:52,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:12:52,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:12:52,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:12:52,626 INFO L87 Difference]: Start difference. First operand 975 states and 1132 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:12:59,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:12:59,792 INFO L93 Difference]: Finished difference Result 2028 states and 2260 transitions. [2024-11-08 18:12:59,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:12:59,793 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-08 18:12:59,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:12:59,800 INFO L225 Difference]: With dead ends: 2028 [2024-11-08 18:12:59,800 INFO L226 Difference]: Without dead ends: 2028 [2024-11-08 18:12:59,801 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:12:59,803 INFO L432 NwaCegarLoop]: 454 mSDtfsCounter, 1412 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 1845 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1415 SdHoareTripleChecker+Valid, 1058 SdHoareTripleChecker+Invalid, 1868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:12:59,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1415 Valid, 1058 Invalid, 1868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1845 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2024-11-08 18:12:59,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states. [2024-11-08 18:12:59,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 1162. [2024-11-08 18:12:59,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1162 states, 758 states have (on average 1.9736147757255937) internal successors, (1496), 1155 states have internal predecessors, (1496), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-08 18:12:59,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1506 transitions. [2024-11-08 18:12:59,849 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1506 transitions. Word has length 8 [2024-11-08 18:12:59,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:12:59,850 INFO L471 AbstractCegarLoop]: Abstraction has 1162 states and 1506 transitions. [2024-11-08 18:12:59,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:12:59,850 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1506 transitions. [2024-11-08 18:12:59,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 18:12:59,853 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:12:59,853 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:12:59,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-08 18:13:00,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:00,054 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:13:00,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:00,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1599530194, now seen corresponding path program 1 times [2024-11-08 18:13:00,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:13:00,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1715624603] [2024-11-08 18:13:00,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:00,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:00,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:13:00,058 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:13:00,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 18:13:00,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:00,195 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:13:00,197 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:13:00,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-08 18:13:00,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:13:00,220 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:13:00,220 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:13:00,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715624603] [2024-11-08 18:13:00,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1715624603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:00,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:13:00,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:13:00,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111726783] [2024-11-08 18:13:00,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:00,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:13:00,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:13:00,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:13:00,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:13:00,222 INFO L87 Difference]: Start difference. First operand 1162 states and 1506 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:13:02,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:02,177 INFO L93 Difference]: Finished difference Result 1329 states and 1672 transitions. [2024-11-08 18:13:02,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:13:02,178 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-08 18:13:02,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:02,183 INFO L225 Difference]: With dead ends: 1329 [2024-11-08 18:13:02,183 INFO L226 Difference]: Without dead ends: 1329 [2024-11-08 18:13:02,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:13:02,185 INFO L432 NwaCegarLoop]: 676 mSDtfsCounter, 768 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:02,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [771 Valid, 828 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-08 18:13:02,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1329 states. [2024-11-08 18:13:02,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1329 to 1115. [2024-11-08 18:13:02,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1115 states, 758 states have (on average 1.8799472295514512) internal successors, (1425), 1108 states have internal predecessors, (1425), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-08 18:13:02,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1115 states to 1115 states and 1435 transitions. [2024-11-08 18:13:02,214 INFO L78 Accepts]: Start accepts. Automaton has 1115 states and 1435 transitions. Word has length 9 [2024-11-08 18:13:02,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:02,215 INFO L471 AbstractCegarLoop]: Abstraction has 1115 states and 1435 transitions. [2024-11-08 18:13:02,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:13:02,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1115 states and 1435 transitions. [2024-11-08 18:13:02,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 18:13:02,216 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:02,216 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:13:02,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-08 18:13:02,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:02,417 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:13:02,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:02,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1599530193, now seen corresponding path program 1 times [2024-11-08 18:13:02,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:13:02,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [694811457] [2024-11-08 18:13:02,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:02,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:02,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:13:02,421 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:13:02,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 18:13:02,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:02,560 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:13:02,562 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:13:02,573 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-08 18:13:02,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:13:02,605 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:13:02,606 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:13:02,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [694811457] [2024-11-08 18:13:02,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [694811457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:02,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:13:02,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:13:02,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660919074] [2024-11-08 18:13:02,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:02,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:13:02,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:13:02,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:13:02,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:13:02,608 INFO L87 Difference]: Start difference. First operand 1115 states and 1435 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:13:04,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:04,986 INFO L93 Difference]: Finished difference Result 1589 states and 2067 transitions. [2024-11-08 18:13:04,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:13:04,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-08 18:13:04,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:04,991 INFO L225 Difference]: With dead ends: 1589 [2024-11-08 18:13:04,992 INFO L226 Difference]: Without dead ends: 1589 [2024-11-08 18:13:04,992 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:13:04,992 INFO L432 NwaCegarLoop]: 853 mSDtfsCounter, 519 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 1174 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:04,993 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 1174 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-08 18:13:04,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1589 states. [2024-11-08 18:13:05,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1589 to 1177. [2024-11-08 18:13:05,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1177 states, 830 states have (on average 1.8686746987951808) internal successors, (1551), 1170 states have internal predecessors, (1551), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-08 18:13:05,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1177 states to 1177 states and 1561 transitions. [2024-11-08 18:13:05,023 INFO L78 Accepts]: Start accepts. Automaton has 1177 states and 1561 transitions. Word has length 9 [2024-11-08 18:13:05,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:05,023 INFO L471 AbstractCegarLoop]: Abstraction has 1177 states and 1561 transitions. [2024-11-08 18:13:05,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:13:05,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1177 states and 1561 transitions. [2024-11-08 18:13:05,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 18:13:05,024 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:05,024 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:13:05,045 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 18:13:05,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:05,228 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr419ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:13:05,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:05,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1232445283, now seen corresponding path program 1 times [2024-11-08 18:13:05,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:13:05,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [722699096] [2024-11-08 18:13:05,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:05,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:05,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:13:05,231 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:13:05,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 18:13:05,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:05,366 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:13:05,368 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:13:05,488 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_47| (_ BitVec 32))) (and (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_47| (_ bv0 1))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_47|)))) is different from true [2024-11-08 18:13:05,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:13:05,488 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:13:05,489 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:13:05,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [722699096] [2024-11-08 18:13:05,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [722699096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:05,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:13:05,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:13:05,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761298837] [2024-11-08 18:13:05,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:05,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:13:05,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:13:05,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:13:05,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-08 18:13:05,490 INFO L87 Difference]: Start difference. First operand 1177 states and 1561 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:13:07,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:07,023 INFO L93 Difference]: Finished difference Result 1392 states and 1798 transitions. [2024-11-08 18:13:07,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:13:07,024 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-08 18:13:07,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:07,028 INFO L225 Difference]: With dead ends: 1392 [2024-11-08 18:13:07,028 INFO L226 Difference]: Without dead ends: 1390 [2024-11-08 18:13:07,029 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-08 18:13:07,029 INFO L432 NwaCegarLoop]: 739 mSDtfsCounter, 230 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 1532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1068 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:07,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 1197 Invalid, 1532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 464 Invalid, 0 Unknown, 1068 Unchecked, 1.5s Time] [2024-11-08 18:13:07,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1390 states. [2024-11-08 18:13:07,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1390 to 1305. [2024-11-08 18:13:07,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1305 states, 958 states have (on average 1.8622129436325678) internal successors, (1784), 1298 states have internal predecessors, (1784), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-08 18:13:07,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1305 states to 1305 states and 1794 transitions. [2024-11-08 18:13:07,058 INFO L78 Accepts]: Start accepts. Automaton has 1305 states and 1794 transitions. Word has length 11 [2024-11-08 18:13:07,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:07,059 INFO L471 AbstractCegarLoop]: Abstraction has 1305 states and 1794 transitions. [2024-11-08 18:13:07,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:13:07,059 INFO L276 IsEmpty]: Start isEmpty. Operand 1305 states and 1794 transitions. [2024-11-08 18:13:07,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-08 18:13:07,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:07,060 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:13:07,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-08 18:13:07,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:07,261 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr330REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:13:07,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:07,261 INFO L85 PathProgramCache]: Analyzing trace with hash -723943859, now seen corresponding path program 1 times [2024-11-08 18:13:07,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:13:07,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [668274384] [2024-11-08 18:13:07,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:07,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:07,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:13:07,264 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:13:07,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-08 18:13:07,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:07,387 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:13:07,389 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:13:07,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:13:07,443 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:13:07,443 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:13:07,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668274384] [2024-11-08 18:13:07,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [668274384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:07,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:13:07,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:13:07,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257264530] [2024-11-08 18:13:07,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:07,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:13:07,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:13:07,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:13:07,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:13:07,445 INFO L87 Difference]: Start difference. First operand 1305 states and 1794 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:13:09,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:09,438 INFO L93 Difference]: Finished difference Result 1294 states and 1737 transitions. [2024-11-08 18:13:09,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:13:09,438 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-08 18:13:09,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:09,441 INFO L225 Difference]: With dead ends: 1294 [2024-11-08 18:13:09,441 INFO L226 Difference]: Without dead ends: 1294 [2024-11-08 18:13:09,442 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:13:09,442 INFO L432 NwaCegarLoop]: 473 mSDtfsCounter, 783 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 894 SdHoareTripleChecker+Invalid, 776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:09,442 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [786 Valid, 894 Invalid, 776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-08 18:13:09,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1294 states. [2024-11-08 18:13:09,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1294 to 1282. [2024-11-08 18:13:09,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1282 states, 958 states have (on average 1.790187891440501) internal successors, (1715), 1275 states have internal predecessors, (1715), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-08 18:13:09,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 1725 transitions. [2024-11-08 18:13:09,468 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 1725 transitions. Word has length 15 [2024-11-08 18:13:09,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:09,468 INFO L471 AbstractCegarLoop]: Abstraction has 1282 states and 1725 transitions. [2024-11-08 18:13:09,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:13:09,469 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 1725 transitions. [2024-11-08 18:13:09,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-08 18:13:09,469 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:09,469 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:13:09,493 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-08 18:13:09,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:09,670 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr331REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:13:09,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:09,671 INFO L85 PathProgramCache]: Analyzing trace with hash -723943858, now seen corresponding path program 1 times [2024-11-08 18:13:09,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:13:09,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2069426303] [2024-11-08 18:13:09,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:09,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:09,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:13:09,672 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:13:09,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-08 18:13:09,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:09,810 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 18:13:09,811 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:13:09,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:13:09,825 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:13:09,825 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:13:09,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069426303] [2024-11-08 18:13:09,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069426303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:09,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:13:09,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:13:09,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833733033] [2024-11-08 18:13:09,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:09,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:13:09,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:13:09,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:13:09,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:13:09,828 INFO L87 Difference]: Start difference. First operand 1282 states and 1725 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:13:09,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:09,873 INFO L93 Difference]: Finished difference Result 1213 states and 1626 transitions. [2024-11-08 18:13:09,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:13:09,874 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-08 18:13:09,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:09,878 INFO L225 Difference]: With dead ends: 1213 [2024-11-08 18:13:09,878 INFO L226 Difference]: Without dead ends: 1213 [2024-11-08 18:13:09,878 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:13:09,881 INFO L432 NwaCegarLoop]: 764 mSDtfsCounter, 61 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 1475 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:09,881 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 1475 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:13:09,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2024-11-08 18:13:09,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 1213. [2024-11-08 18:13:09,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1213 states, 901 states have (on average 1.7935627081021088) internal successors, (1616), 1206 states have internal predecessors, (1616), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-08 18:13:09,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1213 states to 1213 states and 1626 transitions. [2024-11-08 18:13:09,907 INFO L78 Accepts]: Start accepts. Automaton has 1213 states and 1626 transitions. Word has length 15 [2024-11-08 18:13:09,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:09,908 INFO L471 AbstractCegarLoop]: Abstraction has 1213 states and 1626 transitions. [2024-11-08 18:13:09,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:13:09,908 INFO L276 IsEmpty]: Start isEmpty. Operand 1213 states and 1626 transitions. [2024-11-08 18:13:09,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-08 18:13:09,909 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:09,909 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:13:09,930 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-08 18:13:10,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:10,114 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr355REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:13:10,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:10,114 INFO L85 PathProgramCache]: Analyzing trace with hash -965639653, now seen corresponding path program 1 times [2024-11-08 18:13:10,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:13:10,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1026090906] [2024-11-08 18:13:10,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:10,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:10,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:13:10,118 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:13:10,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-08 18:13:10,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:10,244 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:13:10,245 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:13:10,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:13:10,270 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:13:10,271 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:13:10,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1026090906] [2024-11-08 18:13:10,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1026090906] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:10,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:13:10,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:13:10,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717946030] [2024-11-08 18:13:10,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:10,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:13:10,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:13:10,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:13:10,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:13:10,275 INFO L87 Difference]: Start difference. First operand 1213 states and 1626 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:13:10,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:10,361 INFO L93 Difference]: Finished difference Result 1182 states and 1560 transitions. [2024-11-08 18:13:10,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:13:10,361 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-08 18:13:10,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:10,363 INFO L225 Difference]: With dead ends: 1182 [2024-11-08 18:13:10,364 INFO L226 Difference]: Without dead ends: 1182 [2024-11-08 18:13:10,364 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:13:10,364 INFO L432 NwaCegarLoop]: 726 mSDtfsCounter, 45 mSDsluCounter, 1429 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 2155 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:10,365 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 2155 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:13:10,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1182 states. [2024-11-08 18:13:10,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1182 to 1182. [2024-11-08 18:13:10,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1182 states, 877 states have (on average 1.7673888255416192) internal successors, (1550), 1175 states have internal predecessors, (1550), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-08 18:13:10,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1182 states to 1182 states and 1560 transitions. [2024-11-08 18:13:10,387 INFO L78 Accepts]: Start accepts. Automaton has 1182 states and 1560 transitions. Word has length 16 [2024-11-08 18:13:10,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:10,387 INFO L471 AbstractCegarLoop]: Abstraction has 1182 states and 1560 transitions. [2024-11-08 18:13:10,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:13:10,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1182 states and 1560 transitions. [2024-11-08 18:13:10,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-08 18:13:10,388 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:10,388 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:13:10,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-08 18:13:10,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:10,593 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:13:10,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:10,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1271928384, now seen corresponding path program 1 times [2024-11-08 18:13:10,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:13:10,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1067882842] [2024-11-08 18:13:10,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:10,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:10,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:13:10,595 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:13:10,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-08 18:13:10,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:10,747 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:13:10,749 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:13:10,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:13:10,818 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:13:10,818 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:13:10,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067882842] [2024-11-08 18:13:10,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067882842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:10,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:13:10,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:13:10,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987150560] [2024-11-08 18:13:10,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:10,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:13:10,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:13:10,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:13:10,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:13:10,820 INFO L87 Difference]: Start difference. First operand 1182 states and 1560 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:13:12,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:12,968 INFO L93 Difference]: Finished difference Result 1210 states and 1524 transitions. [2024-11-08 18:13:12,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:13:12,969 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-08 18:13:12,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:12,971 INFO L225 Difference]: With dead ends: 1210 [2024-11-08 18:13:12,971 INFO L226 Difference]: Without dead ends: 1210 [2024-11-08 18:13:12,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:13:12,972 INFO L432 NwaCegarLoop]: 524 mSDtfsCounter, 734 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 836 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 737 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:12,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [737 Valid, 1044 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 836 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-08 18:13:12,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1210 states. [2024-11-08 18:13:12,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1210 to 1159. [2024-11-08 18:13:12,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1159 states, 877 states have (on average 1.7149372862029646) internal successors, (1504), 1152 states have internal predecessors, (1504), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-08 18:13:12,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1159 states to 1159 states and 1514 transitions. [2024-11-08 18:13:12,992 INFO L78 Accepts]: Start accepts. Automaton has 1159 states and 1514 transitions. Word has length 20 [2024-11-08 18:13:12,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:12,992 INFO L471 AbstractCegarLoop]: Abstraction has 1159 states and 1514 transitions. [2024-11-08 18:13:12,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:13:12,992 INFO L276 IsEmpty]: Start isEmpty. Operand 1159 states and 1514 transitions. [2024-11-08 18:13:12,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-08 18:13:12,993 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:12,993 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:13:13,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-08 18:13:13,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:13,194 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:13:13,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:13,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1271928383, now seen corresponding path program 1 times [2024-11-08 18:13:13,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:13:13,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [935951371] [2024-11-08 18:13:13,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:13,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:13,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:13:13,196 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:13:13,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-08 18:13:13,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:13,333 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 18:13:13,334 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:13:13,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:13:13,345 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:13:13,345 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:13:13,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [935951371] [2024-11-08 18:13:13,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [935951371] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:13,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:13:13,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:13:13,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986268797] [2024-11-08 18:13:13,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:13,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:13:13,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:13:13,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:13:13,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:13:13,347 INFO L87 Difference]: Start difference. First operand 1159 states and 1514 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:13:13,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:13,380 INFO L93 Difference]: Finished difference Result 1109 states and 1448 transitions. [2024-11-08 18:13:13,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:13:13,381 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-08 18:13:13,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:13,385 INFO L225 Difference]: With dead ends: 1109 [2024-11-08 18:13:13,386 INFO L226 Difference]: Without dead ends: 1109 [2024-11-08 18:13:13,386 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:13:13,387 INFO L432 NwaCegarLoop]: 680 mSDtfsCounter, 61 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 1307 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:13,387 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 1307 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:13:13,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2024-11-08 18:13:13,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 1109. [2024-11-08 18:13:13,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1109 states, 839 states have (on average 1.7139451728247914) internal successors, (1438), 1102 states have internal predecessors, (1438), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-08 18:13:13,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1109 states to 1109 states and 1448 transitions. [2024-11-08 18:13:13,406 INFO L78 Accepts]: Start accepts. Automaton has 1109 states and 1448 transitions. Word has length 20 [2024-11-08 18:13:13,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:13,408 INFO L471 AbstractCegarLoop]: Abstraction has 1109 states and 1448 transitions. [2024-11-08 18:13:13,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:13:13,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1109 states and 1448 transitions. [2024-11-08 18:13:13,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-08 18:13:13,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:13,410 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:13:13,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-08 18:13:13,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:13,610 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr39REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:13:13,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:13,611 INFO L85 PathProgramCache]: Analyzing trace with hash -773291619, now seen corresponding path program 1 times [2024-11-08 18:13:13,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:13:13,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1731470885] [2024-11-08 18:13:13,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:13,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:13,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:13:13,614 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:13:13,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-08 18:13:13,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:13,769 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:13:13,771 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:13:13,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:13:13,793 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:13:13,794 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:13:13,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731470885] [2024-11-08 18:13:13,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731470885] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:13,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:13:13,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:13:13,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876764536] [2024-11-08 18:13:13,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:13,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:13:13,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:13:13,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:13:13,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:13:13,795 INFO L87 Difference]: Start difference. First operand 1109 states and 1448 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:13:13,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:13,868 INFO L93 Difference]: Finished difference Result 1086 states and 1404 transitions. [2024-11-08 18:13:13,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:13:13,869 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-11-08 18:13:13,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:13,872 INFO L225 Difference]: With dead ends: 1086 [2024-11-08 18:13:13,872 INFO L226 Difference]: Without dead ends: 1086 [2024-11-08 18:13:13,873 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:13:13,873 INFO L432 NwaCegarLoop]: 642 mSDtfsCounter, 45 mSDsluCounter, 1261 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 1903 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:13,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 1903 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:13:13,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1086 states. [2024-11-08 18:13:13,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1086 to 1086. [2024-11-08 18:13:13,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1086 states, 823 states have (on average 1.6938031591737546) internal successors, (1394), 1079 states have internal predecessors, (1394), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-08 18:13:13,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1404 transitions. [2024-11-08 18:13:13,908 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1404 transitions. Word has length 21 [2024-11-08 18:13:13,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:13,908 INFO L471 AbstractCegarLoop]: Abstraction has 1086 states and 1404 transitions. [2024-11-08 18:13:13,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:13:13,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1404 transitions. [2024-11-08 18:13:13,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-08 18:13:13,909 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:13,909 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:13:13,931 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-08 18:13:14,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:14,110 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr369REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:13:14,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:14,111 INFO L85 PathProgramCache]: Analyzing trace with hash -987302423, now seen corresponding path program 1 times [2024-11-08 18:13:14,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:13:14,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1877322437] [2024-11-08 18:13:14,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:14,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:14,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:13:14,114 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:13:14,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-08 18:13:14,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:14,252 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:13:14,254 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:13:14,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-08 18:13:14,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:13:14,504 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:13:14,504 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:13:14,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877322437] [2024-11-08 18:13:14,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1877322437] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:14,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:13:14,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:13:14,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719106059] [2024-11-08 18:13:14,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:14,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:13:14,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:13:14,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:13:14,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:13:14,507 INFO L87 Difference]: Start difference. First operand 1086 states and 1404 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:13:16,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:16,710 INFO L93 Difference]: Finished difference Result 1129 states and 1406 transitions. [2024-11-08 18:13:16,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:13:16,711 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2024-11-08 18:13:16,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:16,714 INFO L225 Difference]: With dead ends: 1129 [2024-11-08 18:13:16,715 INFO L226 Difference]: Without dead ends: 1129 [2024-11-08 18:13:16,715 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:13:16,715 INFO L432 NwaCegarLoop]: 614 mSDtfsCounter, 162 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 1280 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:16,715 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 1280 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 709 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-08 18:13:16,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states. [2024-11-08 18:13:16,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 1086. [2024-11-08 18:13:16,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1086 states, 823 states have (on average 1.6889428918590523) internal successors, (1390), 1079 states have internal predecessors, (1390), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-08 18:13:16,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1400 transitions. [2024-11-08 18:13:16,730 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1400 transitions. Word has length 30 [2024-11-08 18:13:16,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:16,730 INFO L471 AbstractCegarLoop]: Abstraction has 1086 states and 1400 transitions. [2024-11-08 18:13:16,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:13:16,731 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1400 transitions. [2024-11-08 18:13:16,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-08 18:13:16,732 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:16,732 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:13:16,753 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-08 18:13:16,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:16,932 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:13:16,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:16,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1472895925, now seen corresponding path program 1 times [2024-11-08 18:13:16,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:13:16,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [760226382] [2024-11-08 18:13:16,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:16,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:16,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:13:16,934 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:13:16,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-08 18:13:17,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:17,087 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:13:17,089 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:13:17,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-08 18:13:17,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:13:17,352 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:13:17,352 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:13:17,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [760226382] [2024-11-08 18:13:17,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [760226382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:17,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:13:17,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:13:17,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321025543] [2024-11-08 18:13:17,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:17,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:13:17,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:13:17,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:13:17,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:13:17,356 INFO L87 Difference]: Start difference. First operand 1086 states and 1400 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:13:19,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:19,768 INFO L93 Difference]: Finished difference Result 1406 states and 1750 transitions. [2024-11-08 18:13:19,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:13:19,769 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2024-11-08 18:13:19,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:19,773 INFO L225 Difference]: With dead ends: 1406 [2024-11-08 18:13:19,773 INFO L226 Difference]: Without dead ends: 1406 [2024-11-08 18:13:19,773 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:13:19,774 INFO L432 NwaCegarLoop]: 670 mSDtfsCounter, 362 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 1349 SdHoareTripleChecker+Invalid, 809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:19,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 1349 Invalid, 809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 806 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-08 18:13:19,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1406 states. [2024-11-08 18:13:19,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1406 to 1082. [2024-11-08 18:13:19,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1082 states, 823 states have (on average 1.6792223572296476) internal successors, (1382), 1075 states have internal predecessors, (1382), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-08 18:13:19,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1392 transitions. [2024-11-08 18:13:19,800 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1392 transitions. Word has length 35 [2024-11-08 18:13:19,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:19,801 INFO L471 AbstractCegarLoop]: Abstraction has 1082 states and 1392 transitions. [2024-11-08 18:13:19,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:13:19,801 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1392 transitions. [2024-11-08 18:13:19,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-08 18:13:19,802 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:19,805 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:13:19,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-08 18:13:20,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:20,005 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr376REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:13:20,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:20,006 INFO L85 PathProgramCache]: Analyzing trace with hash -501315872, now seen corresponding path program 1 times [2024-11-08 18:13:20,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:13:20,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [396775621] [2024-11-08 18:13:20,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:20,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:20,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:13:20,008 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:13:20,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-08 18:13:20,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:20,176 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:13:20,177 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:13:20,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:13:20,474 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:13:20,474 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:13:20,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [396775621] [2024-11-08 18:13:20,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [396775621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:20,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:13:20,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:13:20,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945455265] [2024-11-08 18:13:20,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:20,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:13:20,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:13:20,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:13:20,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:13:20,476 INFO L87 Difference]: Start difference. First operand 1082 states and 1392 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:13:20,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:20,621 INFO L93 Difference]: Finished difference Result 1232 states and 1516 transitions. [2024-11-08 18:13:20,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:13:20,622 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2024-11-08 18:13:20,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:20,627 INFO L225 Difference]: With dead ends: 1232 [2024-11-08 18:13:20,627 INFO L226 Difference]: Without dead ends: 1232 [2024-11-08 18:13:20,628 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:13:20,629 INFO L432 NwaCegarLoop]: 666 mSDtfsCounter, 91 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 1279 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:20,630 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 1279 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:13:20,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1232 states. [2024-11-08 18:13:20,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1232 to 1219. [2024-11-08 18:13:20,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1219 states, 960 states have (on average 1.5645833333333334) internal successors, (1502), 1212 states have internal predecessors, (1502), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-08 18:13:20,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1219 states to 1219 states and 1512 transitions. [2024-11-08 18:13:20,648 INFO L78 Accepts]: Start accepts. Automaton has 1219 states and 1512 transitions. Word has length 44 [2024-11-08 18:13:20,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:20,649 INFO L471 AbstractCegarLoop]: Abstraction has 1219 states and 1512 transitions. [2024-11-08 18:13:20,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:13:20,649 INFO L276 IsEmpty]: Start isEmpty. Operand 1219 states and 1512 transitions. [2024-11-08 18:13:20,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-08 18:13:20,650 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:20,650 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:13:20,673 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-08 18:13:20,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:20,851 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr414ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:13:20,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:20,851 INFO L85 PathProgramCache]: Analyzing trace with hash 868800518, now seen corresponding path program 1 times [2024-11-08 18:13:20,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:13:20,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [807697637] [2024-11-08 18:13:20,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:20,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:20,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:13:20,853 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:13:20,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-08 18:13:21,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:21,027 INFO L255 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:13:21,028 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:13:21,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:13:21,083 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:13:21,083 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:13:21,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807697637] [2024-11-08 18:13:21,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [807697637] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:21,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:13:21,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:13:21,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93430709] [2024-11-08 18:13:21,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:21,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:13:21,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:13:21,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:13:21,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:13:21,085 INFO L87 Difference]: Start difference. First operand 1219 states and 1512 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:13:21,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:21,163 INFO L93 Difference]: Finished difference Result 1189 states and 1462 transitions. [2024-11-08 18:13:21,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:13:21,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2024-11-08 18:13:21,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:21,167 INFO L225 Difference]: With dead ends: 1189 [2024-11-08 18:13:21,167 INFO L226 Difference]: Without dead ends: 1189 [2024-11-08 18:13:21,167 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:13:21,168 INFO L432 NwaCegarLoop]: 640 mSDtfsCounter, 27 mSDsluCounter, 1243 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 1883 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:21,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 1883 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:13:21,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1189 states. [2024-11-08 18:13:21,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1189 to 1189. [2024-11-08 18:13:21,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1189 states, 930 states have (on average 1.5612903225806452) internal successors, (1452), 1182 states have internal predecessors, (1452), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-08 18:13:21,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1189 states to 1189 states and 1462 transitions. [2024-11-08 18:13:21,185 INFO L78 Accepts]: Start accepts. Automaton has 1189 states and 1462 transitions. Word has length 50 [2024-11-08 18:13:21,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:21,185 INFO L471 AbstractCegarLoop]: Abstraction has 1189 states and 1462 transitions. [2024-11-08 18:13:21,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:13:21,186 INFO L276 IsEmpty]: Start isEmpty. Operand 1189 states and 1462 transitions. [2024-11-08 18:13:21,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-08 18:13:21,186 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:21,186 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:13:21,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-08 18:13:21,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:21,388 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:13:21,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:21,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1693277959, now seen corresponding path program 1 times [2024-11-08 18:13:21,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:13:21,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [65486351] [2024-11-08 18:13:21,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:21,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:21,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:13:21,391 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:13:21,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-08 18:13:21,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:21,584 INFO L255 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:13:21,586 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:13:21,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:13:21,645 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:13:21,645 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:13:21,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65486351] [2024-11-08 18:13:21,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65486351] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:21,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:13:21,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:13:21,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807636277] [2024-11-08 18:13:21,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:21,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:13:21,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:13:21,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:13:21,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:13:21,647 INFO L87 Difference]: Start difference. First operand 1189 states and 1462 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:13:21,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:21,724 INFO L93 Difference]: Finished difference Result 1171 states and 1432 transitions. [2024-11-08 18:13:21,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:13:21,725 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2024-11-08 18:13:21,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:21,728 INFO L225 Difference]: With dead ends: 1171 [2024-11-08 18:13:21,728 INFO L226 Difference]: Without dead ends: 1171 [2024-11-08 18:13:21,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:13:21,729 INFO L432 NwaCegarLoop]: 636 mSDtfsCounter, 21 mSDsluCounter, 1241 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 1877 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:21,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 1877 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:13:21,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1171 states. [2024-11-08 18:13:21,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1171 to 1171. [2024-11-08 18:13:21,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1171 states, 912 states have (on average 1.5592105263157894) internal successors, (1422), 1164 states have internal predecessors, (1422), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-08 18:13:21,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1171 states to 1171 states and 1432 transitions. [2024-11-08 18:13:21,746 INFO L78 Accepts]: Start accepts. Automaton has 1171 states and 1432 transitions. Word has length 54 [2024-11-08 18:13:21,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:21,747 INFO L471 AbstractCegarLoop]: Abstraction has 1171 states and 1432 transitions. [2024-11-08 18:13:21,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:13:21,747 INFO L276 IsEmpty]: Start isEmpty. Operand 1171 states and 1432 transitions. [2024-11-08 18:13:21,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-08 18:13:21,748 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:21,748 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:13:21,771 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-08 18:13:21,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:21,948 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr414ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:13:21,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:21,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1743557166, now seen corresponding path program 1 times [2024-11-08 18:13:21,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:13:21,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [69331463] [2024-11-08 18:13:21,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:21,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:21,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:13:21,951 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:13:21,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-08 18:13:22,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:22,152 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:13:22,154 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:13:22,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 18:13:22,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:13:22,258 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:13:22,258 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:13:22,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69331463] [2024-11-08 18:13:22,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [69331463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:22,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:13:22,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:13:22,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346022756] [2024-11-08 18:13:22,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:22,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:13:22,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:13:22,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:13:22,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:13:22,260 INFO L87 Difference]: Start difference. First operand 1171 states and 1432 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:13:22,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:22,769 INFO L93 Difference]: Finished difference Result 1746 states and 2089 transitions. [2024-11-08 18:13:22,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:13:22,770 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-08 18:13:22,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:22,781 INFO L225 Difference]: With dead ends: 1746 [2024-11-08 18:13:22,781 INFO L226 Difference]: Without dead ends: 1743 [2024-11-08 18:13:22,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:13:22,782 INFO L432 NwaCegarLoop]: 624 mSDtfsCounter, 1221 mSDsluCounter, 1848 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1227 SdHoareTripleChecker+Valid, 2472 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:22,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1227 Valid, 2472 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:13:22,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1743 states. [2024-11-08 18:13:22,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1743 to 1117. [2024-11-08 18:13:22,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1117 states, 858 states have (on average 1.592074592074592) internal successors, (1366), 1110 states have internal predecessors, (1366), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-08 18:13:22,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1117 states to 1117 states and 1376 transitions. [2024-11-08 18:13:22,805 INFO L78 Accepts]: Start accepts. Automaton has 1117 states and 1376 transitions. Word has length 58 [2024-11-08 18:13:22,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:22,806 INFO L471 AbstractCegarLoop]: Abstraction has 1117 states and 1376 transitions. [2024-11-08 18:13:22,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:13:22,806 INFO L276 IsEmpty]: Start isEmpty. Operand 1117 states and 1376 transitions. [2024-11-08 18:13:22,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-08 18:13:22,807 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:22,807 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:13:22,830 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-08 18:13:23,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:23,007 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:13:23,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:23,008 INFO L85 PathProgramCache]: Analyzing trace with hash 817264941, now seen corresponding path program 1 times [2024-11-08 18:13:23,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:13:23,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [608786135] [2024-11-08 18:13:23,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:23,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:23,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:13:23,010 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:13:23,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-08 18:13:23,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:23,219 INFO L255 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 18:13:23,221 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:13:23,230 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-08 18:13:23,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 18:13:23,931 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-08 18:13:23,960 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-08 18:13:23,961 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-08 18:13:23,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:13:23,964 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:13:23,964 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:13:23,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608786135] [2024-11-08 18:13:23,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [608786135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:23,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:13:23,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:13:23,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919839455] [2024-11-08 18:13:23,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:23,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:13:23,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:13:23,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:13:23,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:13:23,967 INFO L87 Difference]: Start difference. First operand 1117 states and 1376 transitions. Second operand has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:13:26,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:26,272 INFO L93 Difference]: Finished difference Result 1079 states and 1324 transitions. [2024-11-08 18:13:26,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:13:26,273 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2024-11-08 18:13:26,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:26,276 INFO L225 Difference]: With dead ends: 1079 [2024-11-08 18:13:26,276 INFO L226 Difference]: Without dead ends: 1079 [2024-11-08 18:13:26,277 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:13:26,277 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 579 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 582 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:26,277 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [582 Valid, 423 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-08 18:13:26,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2024-11-08 18:13:26,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 1007. [2024-11-08 18:13:26,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1007 states, 786 states have (on average 1.4860050890585241) internal successors, (1168), 1000 states have internal predecessors, (1168), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-08 18:13:26,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1007 states to 1007 states and 1178 transitions. [2024-11-08 18:13:26,290 INFO L78 Accepts]: Start accepts. Automaton has 1007 states and 1178 transitions. Word has length 62 [2024-11-08 18:13:26,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:26,290 INFO L471 AbstractCegarLoop]: Abstraction has 1007 states and 1178 transitions. [2024-11-08 18:13:26,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:13:26,291 INFO L276 IsEmpty]: Start isEmpty. Operand 1007 states and 1178 transitions. [2024-11-08 18:13:26,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-08 18:13:26,291 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:26,291 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:13:26,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-08 18:13:26,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:26,492 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:13:26,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:26,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1492099519, now seen corresponding path program 1 times [2024-11-08 18:13:26,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:13:26,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1826918206] [2024-11-08 18:13:26,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:26,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:26,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:13:26,495 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:13:26,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-08 18:13:26,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:26,729 INFO L255 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:13:26,732 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:13:26,740 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-08 18:13:26,757 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 18:13:26,789 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-08 18:13:26,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:13:26,803 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:13:26,803 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:13:26,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826918206] [2024-11-08 18:13:26,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1826918206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:26,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:13:26,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:13:26,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908136225] [2024-11-08 18:13:26,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:26,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:13:26,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:13:26,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:13:26,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:13:26,805 INFO L87 Difference]: Start difference. First operand 1007 states and 1178 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:13:28,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:28,635 INFO L93 Difference]: Finished difference Result 1006 states and 1176 transitions. [2024-11-08 18:13:28,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:13:28,636 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-08 18:13:28,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:28,639 INFO L225 Difference]: With dead ends: 1006 [2024-11-08 18:13:28,639 INFO L226 Difference]: Without dead ends: 1006 [2024-11-08 18:13:28,639 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:13:28,640 INFO L432 NwaCegarLoop]: 609 mSDtfsCounter, 2 mSDsluCounter, 997 mSDsCounter, 0 mSdLazyCounter, 837 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1606 SdHoareTripleChecker+Invalid, 838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:28,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1606 Invalid, 838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 837 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 18:13:28,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1006 states. [2024-11-08 18:13:28,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1006 to 1006. [2024-11-08 18:13:28,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 786 states have (on average 1.4834605597964376) internal successors, (1166), 999 states have internal predecessors, (1166), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-08 18:13:28,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1176 transitions. [2024-11-08 18:13:28,654 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1176 transitions. Word has length 67 [2024-11-08 18:13:28,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:28,654 INFO L471 AbstractCegarLoop]: Abstraction has 1006 states and 1176 transitions. [2024-11-08 18:13:28,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:13:28,655 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1176 transitions. [2024-11-08 18:13:28,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-08 18:13:28,655 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:28,655 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:13:28,681 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-08 18:13:28,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:28,856 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:13:28,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:28,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1492099518, now seen corresponding path program 1 times [2024-11-08 18:13:28,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:13:28,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [587182977] [2024-11-08 18:13:28,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:28,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:28,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:13:28,859 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:13:28,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-08 18:13:29,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:29,101 INFO L255 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 18:13:29,103 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:13:29,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-08 18:13:29,138 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 18:13:29,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-08 18:13:29,206 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-08 18:13:29,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:13:29,230 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:13:29,230 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:13:29,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [587182977] [2024-11-08 18:13:29,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [587182977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:29,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:13:29,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:13:29,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656463331] [2024-11-08 18:13:29,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:29,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:13:29,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:13:29,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:13:29,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:13:29,232 INFO L87 Difference]: Start difference. First operand 1006 states and 1176 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:13:31,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:31,689 INFO L93 Difference]: Finished difference Result 1005 states and 1174 transitions. [2024-11-08 18:13:31,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:13:31,690 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-08 18:13:31,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:31,693 INFO L225 Difference]: With dead ends: 1005 [2024-11-08 18:13:31,693 INFO L226 Difference]: Without dead ends: 1005 [2024-11-08 18:13:31,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:13:31,694 INFO L432 NwaCegarLoop]: 609 mSDtfsCounter, 1 mSDsluCounter, 969 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1578 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:31,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1578 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 862 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-08 18:13:31,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2024-11-08 18:13:31,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 1005. [2024-11-08 18:13:31,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 784 states have (on average 1.4846938775510203) internal successors, (1164), 998 states have internal predecessors, (1164), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-08 18:13:31,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1174 transitions. [2024-11-08 18:13:31,709 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1174 transitions. Word has length 67 [2024-11-08 18:13:31,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:31,709 INFO L471 AbstractCegarLoop]: Abstraction has 1005 states and 1174 transitions. [2024-11-08 18:13:31,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:13:31,709 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1174 transitions. [2024-11-08 18:13:31,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-08 18:13:31,710 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:31,710 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:13:31,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-08 18:13:31,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:31,915 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:13:31,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:31,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1326211448, now seen corresponding path program 1 times [2024-11-08 18:13:31,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:13:31,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1508355458] [2024-11-08 18:13:31,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:31,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:31,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:13:31,917 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:13:31,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-08 18:13:32,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:32,145 INFO L255 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 18:13:32,147 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:13:32,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 18:13:32,238 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-08 18:13:32,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:13:32,252 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:13:32,252 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:13:32,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1508355458] [2024-11-08 18:13:32,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1508355458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:32,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:13:32,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:13:32,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996928294] [2024-11-08 18:13:32,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:32,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:13:32,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:13:32,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:13:32,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:13:32,255 INFO L87 Difference]: Start difference. First operand 1005 states and 1174 transitions. Second operand has 7 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:13:35,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:35,002 INFO L93 Difference]: Finished difference Result 1023 states and 1200 transitions. [2024-11-08 18:13:35,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:13:35,003 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2024-11-08 18:13:35,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:35,006 INFO L225 Difference]: With dead ends: 1023 [2024-11-08 18:13:35,006 INFO L226 Difference]: Without dead ends: 1023 [2024-11-08 18:13:35,007 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:13:35,007 INFO L432 NwaCegarLoop]: 601 mSDtfsCounter, 6 mSDsluCounter, 1965 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2566 SdHoareTripleChecker+Invalid, 1102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:35,007 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2566 Invalid, 1102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1098 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-08 18:13:35,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023 states. [2024-11-08 18:13:35,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023 to 1014. [2024-11-08 18:13:35,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1014 states, 792 states have (on average 1.4835858585858586) internal successors, (1175), 1005 states have internal predecessors, (1175), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-08 18:13:35,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1014 states to 1014 states and 1190 transitions. [2024-11-08 18:13:35,024 INFO L78 Accepts]: Start accepts. Automaton has 1014 states and 1190 transitions. Word has length 75 [2024-11-08 18:13:35,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:35,024 INFO L471 AbstractCegarLoop]: Abstraction has 1014 states and 1190 transitions. [2024-11-08 18:13:35,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:13:35,024 INFO L276 IsEmpty]: Start isEmpty. Operand 1014 states and 1190 transitions. [2024-11-08 18:13:35,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-08 18:13:35,025 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:35,025 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:13:35,043 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-08 18:13:35,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:35,226 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:13:35,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:35,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1326211447, now seen corresponding path program 1 times [2024-11-08 18:13:35,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:13:35,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [732290664] [2024-11-08 18:13:35,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:35,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:35,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:13:35,229 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:13:35,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-08 18:13:35,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:35,452 INFO L255 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:13:35,454 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:13:35,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:13:35,475 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:13:35,475 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:13:35,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732290664] [2024-11-08 18:13:35,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [732290664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:13:35,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:13:35,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:13:35,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334415727] [2024-11-08 18:13:35,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:13:35,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:13:35,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:13:35,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:13:35,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:13:35,478 INFO L87 Difference]: Start difference. First operand 1014 states and 1190 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:13:35,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:35,530 INFO L93 Difference]: Finished difference Result 1008 states and 1178 transitions. [2024-11-08 18:13:35,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:13:35,531 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2024-11-08 18:13:35,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:35,534 INFO L225 Difference]: With dead ends: 1008 [2024-11-08 18:13:35,534 INFO L226 Difference]: Without dead ends: 1008 [2024-11-08 18:13:35,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:13:35,535 INFO L432 NwaCegarLoop]: 609 mSDtfsCounter, 0 mSDsluCounter, 1213 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1822 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:35,535 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1822 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:13:35,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2024-11-08 18:13:35,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 1008. [2024-11-08 18:13:35,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1008 states, 786 states have (on average 1.484732824427481) internal successors, (1167), 1001 states have internal predecessors, (1167), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-08 18:13:35,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 1178 transitions. [2024-11-08 18:13:35,554 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 1178 transitions. Word has length 75 [2024-11-08 18:13:35,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:35,555 INFO L471 AbstractCegarLoop]: Abstraction has 1008 states and 1178 transitions. [2024-11-08 18:13:35,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:13:35,555 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 1178 transitions. [2024-11-08 18:13:35,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-08 18:13:35,556 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:35,556 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:13:35,579 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-08 18:13:35,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:35,757 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:13:35,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:35,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1182289895, now seen corresponding path program 1 times [2024-11-08 18:13:35,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:13:35,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1363286265] [2024-11-08 18:13:35,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:35,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:35,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:13:35,760 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:13:35,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-08 18:13:36,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:13:36,026 INFO L255 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:13:36,027 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:13:36,054 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:13:36,054 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:13:36,130 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:13:36,130 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:13:36,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363286265] [2024-11-08 18:13:36,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1363286265] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:13:36,131 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:13:36,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-08 18:13:36,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508598842] [2024-11-08 18:13:36,131 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:13:36,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:13:36,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:13:36,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:13:36,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:13:36,132 INFO L87 Difference]: Start difference. First operand 1008 states and 1178 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 18:13:36,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:36,386 INFO L93 Difference]: Finished difference Result 1020 states and 1195 transitions. [2024-11-08 18:13:36,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 18:13:36,387 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 76 [2024-11-08 18:13:36,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:36,390 INFO L225 Difference]: With dead ends: 1020 [2024-11-08 18:13:36,390 INFO L226 Difference]: Without dead ends: 1020 [2024-11-08 18:13:36,390 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:13:36,391 INFO L432 NwaCegarLoop]: 609 mSDtfsCounter, 5 mSDsluCounter, 2422 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 3031 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:36,391 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 3031 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:13:36,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2024-11-08 18:13:36,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 1018. [2024-11-08 18:13:36,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1018 states, 795 states have (on average 1.4867924528301886) internal successors, (1182), 1010 states have internal predecessors, (1182), 5 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-08 18:13:36,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1018 states to 1018 states and 1193 transitions. [2024-11-08 18:13:36,408 INFO L78 Accepts]: Start accepts. Automaton has 1018 states and 1193 transitions. Word has length 76 [2024-11-08 18:13:36,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:36,408 INFO L471 AbstractCegarLoop]: Abstraction has 1018 states and 1193 transitions. [2024-11-08 18:13:36,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 18:13:36,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1018 states and 1193 transitions. [2024-11-08 18:13:36,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-08 18:13:36,409 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:36,409 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:13:36,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-08 18:13:36,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:36,610 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 417 more)] === [2024-11-08 18:13:36,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:36,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1043593928, now seen corresponding path program 2 times [2024-11-08 18:13:36,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:13:36,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1954705274] [2024-11-08 18:13:36,611 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 18:13:36,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:13:36,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:13:36,612 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:13:36,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de838340-4b92-4b52-baff-f9cd508dd6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process