./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 67499ec0709cfdcc368630c5b1d94f26157589b8bf16f22cf5d62554760c6dd7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:59:39,554 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:59:39,623 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 05:59:39,629 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:59:39,629 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:59:39,655 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:59:39,656 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:59:39,657 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:59:39,657 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:59:39,658 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:59:39,659 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:59:39,659 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:59:39,660 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:59:39,660 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:59:39,661 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:59:39,662 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:59:39,662 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:59:39,663 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:59:39,663 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:59:39,664 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:59:39,664 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:59:39,665 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:59:39,665 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:59:39,666 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:59:39,666 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 05:59:39,667 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 05:59:39,667 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:59:39,668 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:59:39,668 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:59:39,669 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:59:39,669 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:59:39,670 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:59:39,670 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:59:39,671 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:59:39,671 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:59:39,671 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:59:39,672 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 05:59:39,672 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:59:39,672 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 05:59:39,673 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:59:39,673 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:59:39,673 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 05:59:39,673 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:59:39,673 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:59:39,674 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_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67499ec0709cfdcc368630c5b1d94f26157589b8bf16f22cf5d62554760c6dd7 [2023-11-29 05:59:39,868 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:59:39,889 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:59:39,891 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:59:39,892 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:59:39,893 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:59:39,894 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-1.i [2023-11-29 05:59:42,607 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:59:42,904 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:59:42,904 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-1.i [2023-11-29 05:59:42,922 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/data/bbf44e645/7fe28460e55641cd9217a927c7650ab6/FLAG413d48bd4 [2023-11-29 05:59:42,935 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/data/bbf44e645/7fe28460e55641cd9217a927c7650ab6 [2023-11-29 05:59:42,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:59:42,938 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:59:42,939 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:59:42,939 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:59:42,943 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:59:42,944 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:59:42" (1/1) ... [2023-11-29 05:59:42,945 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bf736fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:59:42, skipping insertion in model container [2023-11-29 05:59:42,945 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:59:42" (1/1) ... [2023-11-29 05:59:43,010 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:59:43,452 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:59:43,462 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:59:43,542 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:59:43,575 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 05:59:43,582 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:59:43,583 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:59:43 WrapperNode [2023-11-29 05:59:43,583 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:59:43,584 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:59:43,584 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:59:43,584 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:59:43,592 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:59:43" (1/1) ... [2023-11-29 05:59:43,620 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:59:43" (1/1) ... [2023-11-29 05:59:43,677 INFO L138 Inliner]: procedures = 176, calls = 280, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1335 [2023-11-29 05:59:43,677 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:59:43,678 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:59:43,678 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:59:43,678 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:59:43,689 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:59:43" (1/1) ... [2023-11-29 05:59:43,690 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:59:43" (1/1) ... [2023-11-29 05:59:43,700 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:59:43" (1/1) ... [2023-11-29 05:59:43,775 INFO L175 MemorySlicer]: Split 258 memory accesses to 4 slices as follows [2, 5, 217, 34]. 84 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 55 writes are split as follows [0, 1, 50, 4]. [2023-11-29 05:59:43,776 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:59:43" (1/1) ... [2023-11-29 05:59:43,776 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:59:43" (1/1) ... [2023-11-29 05:59:43,816 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:59:43" (1/1) ... [2023-11-29 05:59:43,832 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:59:43" (1/1) ... [2023-11-29 05:59:43,839 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:59:43" (1/1) ... [2023-11-29 05:59:43,847 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:59:43" (1/1) ... [2023-11-29 05:59:43,860 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:59:43,861 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:59:43,862 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:59:43,862 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:59:43,862 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:59:43" (1/1) ... [2023-11-29 05:59:43,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:59:43,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:59:43,890 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:59:43,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:59:43,922 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-29 05:59:43,922 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-29 05:59:43,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 05:59:43,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 05:59:43,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 05:59:43,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 05:59:43,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 05:59:43,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 05:59:43,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 05:59:43,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 05:59:43,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-29 05:59:43,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-29 05:59:43,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-29 05:59:43,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-29 05:59:43,924 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-29 05:59:43,924 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-29 05:59:43,924 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-29 05:59:43,924 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-29 05:59:43,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 05:59:43,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:59:43,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 05:59:43,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 05:59:43,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 05:59:43,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 05:59:43,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 05:59:43,926 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-29 05:59:43,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 05:59:43,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 05:59:43,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 05:59:43,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 05:59:43,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 05:59:43,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 05:59:43,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 05:59:43,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 05:59:43,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 05:59:43,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:59:43,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:59:44,137 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:59:44,139 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:59:45,470 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:59:45,518 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:59:45,518 INFO L309 CfgBuilder]: Removed 63 assume(true) statements. [2023-11-29 05:59:45,518 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:59:45 BoogieIcfgContainer [2023-11-29 05:59:45,519 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:59:45,521 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 05:59:45,521 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 05:59:45,524 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 05:59:45,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:59:42" (1/3) ... [2023-11-29 05:59:45,525 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20f997a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:59:45, skipping insertion in model container [2023-11-29 05:59:45,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:59:43" (2/3) ... [2023-11-29 05:59:45,525 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20f997a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:59:45, skipping insertion in model container [2023-11-29 05:59:45,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:59:45" (3/3) ... [2023-11-29 05:59:45,526 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test7-1.i [2023-11-29 05:59:45,544 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 05:59:45,545 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-29 05:59:45,601 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:59:45,607 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@4eaab403, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:59:45,608 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-29 05:59:45,614 INFO L276 IsEmpty]: Start isEmpty. Operand has 363 states, 349 states have (on average 1.7106017191977076) internal successors, (597), 356 states have internal predecessors, (597), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 05:59:45,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 05:59:45,620 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:59:45,621 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 05:59:45,621 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 05:59:45,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:59:45,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1554499296, now seen corresponding path program 1 times [2023-11-29 05:59:45,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:59:45,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620589346] [2023-11-29 05:59:45,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:59:45,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:59:45,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:59:45,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:59:45,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620589346] [2023-11-29 05:59:45,784 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 05:59:45,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952731946] [2023-11-29 05:59:45,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:59:45,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:59:45,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:59:45,787 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:59:45,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 05:59:45,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:59:45,958 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 05:59:45,962 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:59:45,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:59:45,976 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:59:45,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952731946] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:59:45,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:59:45,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:59:45,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208266205] [2023-11-29 05:59:45,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:59:45,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 05:59:45,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:59:46,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 05:59:46,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 05:59:46,008 INFO L87 Difference]: Start difference. First operand has 363 states, 349 states have (on average 1.7106017191977076) internal successors, (597), 356 states have internal predecessors, (597), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-11-29 05:59:46,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:59:46,072 INFO L93 Difference]: Finished difference Result 722 states and 1211 transitions. [2023-11-29 05:59:46,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 05:59:46,074 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2023-11-29 05:59:46,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:59:46,085 INFO L225 Difference]: With dead ends: 722 [2023-11-29 05:59:46,085 INFO L226 Difference]: Without dead ends: 353 [2023-11-29 05:59:46,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 05:59:46,092 INFO L413 NwaCegarLoop]: 531 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:59:46,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 531 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:59:46,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2023-11-29 05:59:46,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 353. [2023-11-29 05:59:46,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 343 states have (on average 1.5160349854227406) internal successors, (520), 348 states have internal predecessors, (520), 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) [2023-11-29 05:59:46,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 526 transitions. [2023-11-29 05:59:46,147 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 526 transitions. Word has length 6 [2023-11-29 05:59:46,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:59:46,147 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 526 transitions. [2023-11-29 05:59:46,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-11-29 05:59:46,148 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 526 transitions. [2023-11-29 05:59:46,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 05:59:46,148 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:59:46,148 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 05:59:46,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 05:59:46,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:59:46,349 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 05:59:46,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:59:46,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1554501218, now seen corresponding path program 1 times [2023-11-29 05:59:46,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:59:46,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063635160] [2023-11-29 05:59:46,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:59:46,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:59:46,398 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:59:46,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1198224840] [2023-11-29 05:59:46,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:59:46,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:59:46,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:59:46,400 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:59:46,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 05:59:46,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:59:46,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 05:59:46,562 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:59:46,610 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 [2023-11-29 05:59:46,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:59:46,642 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:59:46,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:59:46,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063635160] [2023-11-29 05:59:46,643 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:59:46,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198224840] [2023-11-29 05:59:46,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1198224840] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:59:46,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:59:46,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:59:46,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574522284] [2023-11-29 05:59:46,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:59:46,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:59:46,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:59:46,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:59:46,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:59:46,646 INFO L87 Difference]: Start difference. First operand 353 states and 526 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-11-29 05:59:46,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:59:46,803 INFO L93 Difference]: Finished difference Result 702 states and 1048 transitions. [2023-11-29 05:59:46,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:59:46,804 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2023-11-29 05:59:46,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:59:46,809 INFO L225 Difference]: With dead ends: 702 [2023-11-29 05:59:46,809 INFO L226 Difference]: Without dead ends: 700 [2023-11-29 05:59:46,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:59:46,811 INFO L413 NwaCegarLoop]: 541 mSDtfsCounter, 509 mSDsluCounter, 1039 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 1580 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:59:46,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 1580 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:59:46,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2023-11-29 05:59:46,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 359. [2023-11-29 05:59:46,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 349 states have (on average 1.510028653295129) internal successors, (527), 354 states have internal predecessors, (527), 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) [2023-11-29 05:59:46,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 533 transitions. [2023-11-29 05:59:46,837 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 533 transitions. Word has length 6 [2023-11-29 05:59:46,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:59:46,837 INFO L495 AbstractCegarLoop]: Abstraction has 359 states and 533 transitions. [2023-11-29 05:59:46,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-11-29 05:59:46,837 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 533 transitions. [2023-11-29 05:59:46,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-29 05:59:46,842 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:59:46,842 INFO L195 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] [2023-11-29 05:59:46,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 05:59:47,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:59:47,043 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 05:59:47,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:59:47,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1977844817, now seen corresponding path program 1 times [2023-11-29 05:59:47,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:59:47,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610710706] [2023-11-29 05:59:47,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:59:47,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:59:47,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:59:47,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:59:47,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:59:47,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610710706] [2023-11-29 05:59:47,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610710706] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:59:47,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:59:47,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:59:47,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790398127] [2023-11-29 05:59:47,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:59:47,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:59:47,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:59:47,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:59:47,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:59:47,469 INFO L87 Difference]: Start difference. First operand 359 states and 533 transitions. Second operand has 4 states, 4 states have (on average 17.5) 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) [2023-11-29 05:59:47,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:59:47,599 INFO L93 Difference]: Finished difference Result 867 states and 1298 transitions. [2023-11-29 05:59:47,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:59:47,600 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) 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 [2023-11-29 05:59:47,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:59:47,605 INFO L225 Difference]: With dead ends: 867 [2023-11-29 05:59:47,605 INFO L226 Difference]: Without dead ends: 699 [2023-11-29 05:59:47,606 INFO L412 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 [2023-11-29 05:59:47,607 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 510 mSDsluCounter, 1002 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 1505 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:59:47,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 1505 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:59:47,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2023-11-29 05:59:47,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 359. [2023-11-29 05:59:47,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 349 states have (on average 1.507163323782235) internal successors, (526), 354 states have internal predecessors, (526), 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) [2023-11-29 05:59:47,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 532 transitions. [2023-11-29 05:59:47,623 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 532 transitions. Word has length 70 [2023-11-29 05:59:47,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:59:47,623 INFO L495 AbstractCegarLoop]: Abstraction has 359 states and 532 transitions. [2023-11-29 05:59:47,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) 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) [2023-11-29 05:59:47,623 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 532 transitions. [2023-11-29 05:59:47,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 05:59:47,627 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:59:47,627 INFO L195 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] [2023-11-29 05:59:47,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 05:59:47,628 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 05:59:47,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:59:47,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1558685971, now seen corresponding path program 1 times [2023-11-29 05:59:47,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:59:47,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162635656] [2023-11-29 05:59:47,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:59:47,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:59:47,688 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:59:47,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1885316432] [2023-11-29 05:59:47,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:59:47,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:59:47,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:59:47,693 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:59:47,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 05:59:47,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:59:47,978 INFO L262 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:59:47,983 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:59:47,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:59:47,998 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:59:47,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:59:47,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162635656] [2023-11-29 05:59:47,999 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:59:47,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885316432] [2023-11-29 05:59:47,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1885316432] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:59:47,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:59:48,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:59:48,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222268304] [2023-11-29 05:59:48,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:59:48,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:59:48,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:59:48,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:59:48,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:59:48,002 INFO L87 Difference]: Start difference. First operand 359 states and 532 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2023-11-29 05:59:48,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:59:48,080 INFO L93 Difference]: Finished difference Result 732 states and 1088 transitions. [2023-11-29 05:59:48,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:59:48,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 80 [2023-11-29 05:59:48,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:59:48,083 INFO L225 Difference]: With dead ends: 732 [2023-11-29 05:59:48,083 INFO L226 Difference]: Without dead ends: 380 [2023-11-29 05:59:48,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:59:48,085 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 8 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:59:48,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 996 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:59:48,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2023-11-29 05:59:48,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 379. [2023-11-29 05:59:48,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 369 states have (on average 1.4796747967479675) internal successors, (546), 374 states have internal predecessors, (546), 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) [2023-11-29 05:59:48,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 552 transitions. [2023-11-29 05:59:48,096 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 552 transitions. Word has length 80 [2023-11-29 05:59:48,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:59:48,097 INFO L495 AbstractCegarLoop]: Abstraction has 379 states and 552 transitions. [2023-11-29 05:59:48,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2023-11-29 05:59:48,097 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 552 transitions. [2023-11-29 05:59:48,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 05:59:48,099 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:59:48,099 INFO L195 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] [2023-11-29 05:59:48,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 05:59:48,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:59:48,305 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 05:59:48,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:59:48,305 INFO L85 PathProgramCache]: Analyzing trace with hash 682666965, now seen corresponding path program 1 times [2023-11-29 05:59:48,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:59:48,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171446978] [2023-11-29 05:59:48,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:59:48,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:59:48,364 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:59:48,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2033286460] [2023-11-29 05:59:48,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:59:48,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:59:48,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:59:48,366 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:59:48,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 05:59:48,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:59:48,654 INFO L262 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:59:48,659 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:59:48,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:59:48,691 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:59:48,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:59:48,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171446978] [2023-11-29 05:59:48,691 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:59:48,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033286460] [2023-11-29 05:59:48,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033286460] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:59:48,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:59:48,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:59:48,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105226378] [2023-11-29 05:59:48,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:59:48,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:59:48,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:59:48,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:59:48,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:59:48,693 INFO L87 Difference]: Start difference. First operand 379 states and 552 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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) [2023-11-29 05:59:48,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:59:48,793 INFO L93 Difference]: Finished difference Result 738 states and 1084 transitions. [2023-11-29 05:59:48,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:59:48,794 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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 80 [2023-11-29 05:59:48,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:59:48,796 INFO L225 Difference]: With dead ends: 738 [2023-11-29 05:59:48,797 INFO L226 Difference]: Without dead ends: 366 [2023-11-29 05:59:48,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:59:48,798 INFO L413 NwaCegarLoop]: 497 mSDtfsCounter, 163 mSDsluCounter, 972 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 1469 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:59:48,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 1469 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:59:48,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2023-11-29 05:59:48,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 365. [2023-11-29 05:59:48,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 355 states have (on average 1.4788732394366197) internal successors, (525), 360 states have internal predecessors, (525), 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) [2023-11-29 05:59:48,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 531 transitions. [2023-11-29 05:59:48,811 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 531 transitions. Word has length 80 [2023-11-29 05:59:48,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:59:48,811 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 531 transitions. [2023-11-29 05:59:48,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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) [2023-11-29 05:59:48,812 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 531 transitions. [2023-11-29 05:59:48,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 05:59:48,813 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:59:48,813 INFO L195 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] [2023-11-29 05:59:48,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-29 05:59:49,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:59:49,015 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 05:59:49,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:59:49,016 INFO L85 PathProgramCache]: Analyzing trace with hash 2127825671, now seen corresponding path program 1 times [2023-11-29 05:59:49,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:59:49,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101577044] [2023-11-29 05:59:49,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:59:49,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:59:49,064 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:59:49,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [515407894] [2023-11-29 05:59:49,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:59:49,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:59:49,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:59:49,066 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:59:49,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 05:59:49,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:59:49,333 INFO L262 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:59:49,336 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:59:49,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:59:49,380 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:59:49,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:59:49,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101577044] [2023-11-29 05:59:49,381 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:59:49,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515407894] [2023-11-29 05:59:49,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515407894] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:59:49,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:59:49,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:59:49,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7026042] [2023-11-29 05:59:49,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:59:49,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:59:49,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:59:49,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:59:49,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:59:49,383 INFO L87 Difference]: Start difference. First operand 365 states and 531 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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) [2023-11-29 05:59:49,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:59:49,502 INFO L93 Difference]: Finished difference Result 833 states and 1224 transitions. [2023-11-29 05:59:49,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:59:49,502 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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 80 [2023-11-29 05:59:49,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:59:49,505 INFO L225 Difference]: With dead ends: 833 [2023-11-29 05:59:49,505 INFO L226 Difference]: Without dead ends: 475 [2023-11-29 05:59:49,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:59:49,507 INFO L413 NwaCegarLoop]: 500 mSDtfsCounter, 143 mSDsluCounter, 1474 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 1974 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:59:49,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 1974 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:59:49,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2023-11-29 05:59:49,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 388. [2023-11-29 05:59:49,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 378 states have (on average 1.4550264550264551) internal successors, (550), 383 states have internal predecessors, (550), 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) [2023-11-29 05:59:49,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 556 transitions. [2023-11-29 05:59:49,517 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 556 transitions. Word has length 80 [2023-11-29 05:59:49,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:59:49,517 INFO L495 AbstractCegarLoop]: Abstraction has 388 states and 556 transitions. [2023-11-29 05:59:49,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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) [2023-11-29 05:59:49,517 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 556 transitions. [2023-11-29 05:59:49,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 05:59:49,518 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:59:49,518 INFO L195 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] [2023-11-29 05:59:49,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-29 05:59:49,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:59:49,721 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 05:59:49,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:59:49,721 INFO L85 PathProgramCache]: Analyzing trace with hash 829280193, now seen corresponding path program 1 times [2023-11-29 05:59:49,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:59:49,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894833295] [2023-11-29 05:59:49,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:59:49,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:59:49,773 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:59:49,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [569042391] [2023-11-29 05:59:49,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:59:49,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:59:49,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:59:49,775 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:59:49,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 05:59:50,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:59:50,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:59:50,043 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:59:50,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:59:50,078 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:59:50,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:59:50,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894833295] [2023-11-29 05:59:50,079 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:59:50,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569042391] [2023-11-29 05:59:50,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569042391] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:59:50,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:59:50,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:59:50,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096339223] [2023-11-29 05:59:50,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:59:50,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:59:50,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:59:50,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:59:50,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:59:50,082 INFO L87 Difference]: Start difference. First operand 388 states and 556 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2023-11-29 05:59:50,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:59:50,144 INFO L93 Difference]: Finished difference Result 701 states and 1005 transitions. [2023-11-29 05:59:50,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:59:50,145 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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 80 [2023-11-29 05:59:50,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:59:50,147 INFO L225 Difference]: With dead ends: 701 [2023-11-29 05:59:50,147 INFO L226 Difference]: Without dead ends: 320 [2023-11-29 05:59:50,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:59:50,149 INFO L413 NwaCegarLoop]: 430 mSDtfsCounter, 78 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 1207 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:59:50,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 1207 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:59:50,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2023-11-29 05:59:50,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 320. [2023-11-29 05:59:50,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 310 states have (on average 1.4451612903225806) internal successors, (448), 315 states have internal predecessors, (448), 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) [2023-11-29 05:59:50,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 454 transitions. [2023-11-29 05:59:50,159 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 454 transitions. Word has length 80 [2023-11-29 05:59:50,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:59:50,159 INFO L495 AbstractCegarLoop]: Abstraction has 320 states and 454 transitions. [2023-11-29 05:59:50,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2023-11-29 05:59:50,159 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 454 transitions. [2023-11-29 05:59:50,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 05:59:50,160 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:59:50,160 INFO L195 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] [2023-11-29 05:59:50,167 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 05:59:50,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:59:50,367 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 05:59:50,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:59:50,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1251806665, now seen corresponding path program 1 times [2023-11-29 05:59:50,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:59:50,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185540565] [2023-11-29 05:59:50,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:59:50,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:59:50,401 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:59:50,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [532879860] [2023-11-29 05:59:50,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:59:50,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:59:50,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:59:50,403 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:59:50,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 05:59:50,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:59:50,693 INFO L262 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:59:50,696 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:59:50,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:59:50,938 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:59:50,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:59:50,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185540565] [2023-11-29 05:59:50,939 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:59:50,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [532879860] [2023-11-29 05:59:50,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [532879860] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:59:50,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:59:50,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:59:50,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278453344] [2023-11-29 05:59:50,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:59:50,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:59:50,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:59:50,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:59:50,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:59:50,941 INFO L87 Difference]: Start difference. First operand 320 states and 454 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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) [2023-11-29 05:59:51,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:59:51,053 INFO L93 Difference]: Finished difference Result 849 states and 1222 transitions. [2023-11-29 05:59:51,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:59:51,054 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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 80 [2023-11-29 05:59:51,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:59:51,057 INFO L225 Difference]: With dead ends: 849 [2023-11-29 05:59:51,057 INFO L226 Difference]: Without dead ends: 536 [2023-11-29 05:59:51,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:59:51,059 INFO L413 NwaCegarLoop]: 613 mSDtfsCounter, 271 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 1029 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:59:51,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 1029 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:59:51,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2023-11-29 05:59:51,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 533. [2023-11-29 05:59:51,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 523 states have (on average 1.4646271510516253) internal successors, (766), 528 states have internal predecessors, (766), 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) [2023-11-29 05:59:51,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 772 transitions. [2023-11-29 05:59:51,078 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 772 transitions. Word has length 80 [2023-11-29 05:59:51,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:59:51,078 INFO L495 AbstractCegarLoop]: Abstraction has 533 states and 772 transitions. [2023-11-29 05:59:51,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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) [2023-11-29 05:59:51,079 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 772 transitions. [2023-11-29 05:59:51,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-29 05:59:51,079 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:59:51,080 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:59:51,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-29 05:59:51,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:59:51,285 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 05:59:51,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:59:51,285 INFO L85 PathProgramCache]: Analyzing trace with hash -415045052, now seen corresponding path program 1 times [2023-11-29 05:59:51,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:59:51,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843065486] [2023-11-29 05:59:51,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:59:51,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:59:51,333 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:59:51,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [541063397] [2023-11-29 05:59:51,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:59:51,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:59:51,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:59:51,335 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:59:51,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 05:59:51,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:59:51,640 INFO L262 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 05:59:51,645 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:59:51,653 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 15 treesize of output 1 [2023-11-29 05:59:51,851 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 15 treesize of output 7 [2023-11-29 05:59:51,858 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 05:59:51,858 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:59:51,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:59:51,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843065486] [2023-11-29 05:59:51,858 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:59:51,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [541063397] [2023-11-29 05:59:51,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [541063397] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:59:51,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:59:51,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:59:51,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77531592] [2023-11-29 05:59:51,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:59:51,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:59:51,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:59:51,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:59:51,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:59:51,861 INFO L87 Difference]: Start difference. First operand 533 states and 772 transitions. Second operand has 5 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:59:55,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 05:59:59,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:00:00,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:00:00,015 INFO L93 Difference]: Finished difference Result 732 states and 1068 transitions. [2023-11-29 06:00:00,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:00:00,016 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 93 [2023-11-29 06:00:00,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:00:00,021 INFO L225 Difference]: With dead ends: 732 [2023-11-29 06:00:00,021 INFO L226 Difference]: Without dead ends: 731 [2023-11-29 06:00:00,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 86 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:00:00,023 INFO L413 NwaCegarLoop]: 419 mSDtfsCounter, 708 mSDsluCounter, 658 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 709 SdHoareTripleChecker+Valid, 1077 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:00:00,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [709 Valid, 1077 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 72 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2023-11-29 06:00:00,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2023-11-29 06:00:00,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 532. [2023-11-29 06:00:00,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 523 states have (on average 1.462715105162524) internal successors, (765), 527 states have internal predecessors, (765), 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) [2023-11-29 06:00:00,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 771 transitions. [2023-11-29 06:00:00,046 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 771 transitions. Word has length 93 [2023-11-29 06:00:00,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:00:00,047 INFO L495 AbstractCegarLoop]: Abstraction has 532 states and 771 transitions. [2023-11-29 06:00:00,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:00:00,047 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 771 transitions. [2023-11-29 06:00:00,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-29 06:00:00,048 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:00:00,049 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:00:00,056 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 06:00:00,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:00:00,256 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:00:00,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:00:00,257 INFO L85 PathProgramCache]: Analyzing trace with hash 18506073, now seen corresponding path program 1 times [2023-11-29 06:00:00,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:00:00,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035077263] [2023-11-29 06:00:00,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:00:00,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:00:00,307 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:00:00,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1370446801] [2023-11-29 06:00:00,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:00:00,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:00:00,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:00:00,322 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:00:00,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 06:00:00,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:00:00,679 INFO L262 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:00:00,683 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:00:00,886 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 15 treesize of output 7 [2023-11-29 06:00:00,897 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 06:00:00,898 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:00:00,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:00:00,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035077263] [2023-11-29 06:00:00,898 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:00:00,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370446801] [2023-11-29 06:00:00,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1370446801] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:00:00,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:00:00,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:00:00,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560650611] [2023-11-29 06:00:00,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:00:00,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:00:00,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:00:00,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:00:00,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:00:00,900 INFO L87 Difference]: Start difference. First operand 532 states and 771 transitions. Second operand has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:00:04,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:00:09,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:00:13,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:00:13,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:00:13,111 INFO L93 Difference]: Finished difference Result 731 states and 1067 transitions. [2023-11-29 06:00:13,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:00:13,111 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 94 [2023-11-29 06:00:13,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:00:13,115 INFO L225 Difference]: With dead ends: 731 [2023-11-29 06:00:13,115 INFO L226 Difference]: Without dead ends: 730 [2023-11-29 06:00:13,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 86 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:00:13,116 INFO L413 NwaCegarLoop]: 418 mSDtfsCounter, 704 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 705 SdHoareTripleChecker+Valid, 1489 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:00:13,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [705 Valid, 1489 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 107 Invalid, 3 Unknown, 0 Unchecked, 12.2s Time] [2023-11-29 06:00:13,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2023-11-29 06:00:13,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 531. [2023-11-29 06:00:13,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 523 states have (on average 1.4608030592734225) internal successors, (764), 526 states have internal predecessors, (764), 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) [2023-11-29 06:00:13,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 770 transitions. [2023-11-29 06:00:13,131 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 770 transitions. Word has length 94 [2023-11-29 06:00:13,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:00:13,131 INFO L495 AbstractCegarLoop]: Abstraction has 531 states and 770 transitions. [2023-11-29 06:00:13,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:00:13,131 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 770 transitions. [2023-11-29 06:00:13,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-29 06:00:13,132 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:00:13,132 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:00:13,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-29 06:00:13,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 06:00:13,333 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:00:13,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:00:13,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1050666823, now seen corresponding path program 1 times [2023-11-29 06:00:13,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:00:13,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232628185] [2023-11-29 06:00:13,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:00:13,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:00:13,376 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:00:13,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [498150650] [2023-11-29 06:00:13,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:00:13,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:00:13,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:00:13,378 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:00:13,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 06:00:13,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:00:13,773 INFO L262 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 06:00:13,776 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:00:13,789 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:00:13,789 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:00:13,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:00:13,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232628185] [2023-11-29 06:00:13,789 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:00:13,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498150650] [2023-11-29 06:00:13,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [498150650] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:00:13,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:00:13,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:00:13,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547652746] [2023-11-29 06:00:13,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:00:13,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:00:13,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:00:13,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:00:13,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:00:13,791 INFO L87 Difference]: Start difference. First operand 531 states and 770 transitions. Second operand has 4 states, 3 states have (on average 31.666666666666668) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:00:13,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:00:13,835 INFO L93 Difference]: Finished difference Result 987 states and 1441 transitions. [2023-11-29 06:00:13,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:00:13,836 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 31.666666666666668) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 99 [2023-11-29 06:00:13,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:00:13,840 INFO L225 Difference]: With dead ends: 987 [2023-11-29 06:00:13,840 INFO L226 Difference]: Without dead ends: 533 [2023-11-29 06:00:13,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:00:13,841 INFO L413 NwaCegarLoop]: 442 mSDtfsCounter, 1 mSDsluCounter, 880 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1322 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:00:13,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1322 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:00:13,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2023-11-29 06:00:13,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 533. [2023-11-29 06:00:13,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 524 states have (on average 1.4618320610687023) internal successors, (766), 528 states have internal predecessors, (766), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 06:00:13,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 773 transitions. [2023-11-29 06:00:13,863 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 773 transitions. Word has length 99 [2023-11-29 06:00:13,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:00:13,863 INFO L495 AbstractCegarLoop]: Abstraction has 533 states and 773 transitions. [2023-11-29 06:00:13,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 31.666666666666668) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:00:13,863 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 773 transitions. [2023-11-29 06:00:13,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-29 06:00:13,864 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:00:13,865 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:00:13,873 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 06:00:14,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 06:00:14,067 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:00:14,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:00:14,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1988821997, now seen corresponding path program 1 times [2023-11-29 06:00:14,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:00:14,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064291571] [2023-11-29 06:00:14,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:00:14,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:00:14,111 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:00:14,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [105795099] [2023-11-29 06:00:14,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:00:14,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:00:14,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:00:14,113 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:00:14,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 06:00:14,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:00:14,475 INFO L262 TraceCheckSpWp]: Trace formula consists of 638 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-29 06:00:14,480 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:00:14,483 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 [2023-11-29 06:00:14,508 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 [2023-11-29 06:00:14,526 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 23 treesize of output 11 [2023-11-29 06:00:14,929 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 06:00:14,930 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 23 [2023-11-29 06:00:15,104 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 06:00:15,104 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:00:15,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:00:15,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064291571] [2023-11-29 06:00:15,105 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:00:15,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105795099] [2023-11-29 06:00:15,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105795099] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:00:15,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:00:15,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 06:00:15,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22055688] [2023-11-29 06:00:15,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:00:15,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:00:15,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:00:15,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:00:15,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:00:15,107 INFO L87 Difference]: Start difference. First operand 533 states and 773 transitions. Second operand has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:00:17,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:00:17,057 INFO L93 Difference]: Finished difference Result 1287 states and 1882 transitions. [2023-11-29 06:00:17,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:00:17,058 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 101 [2023-11-29 06:00:17,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:00:17,061 INFO L225 Difference]: With dead ends: 1287 [2023-11-29 06:00:17,061 INFO L226 Difference]: Without dead ends: 792 [2023-11-29 06:00:17,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2023-11-29 06:00:17,063 INFO L413 NwaCegarLoop]: 386 mSDtfsCounter, 694 mSDsluCounter, 3171 mSDsCounter, 0 mSdLazyCounter, 1155 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 3557 SdHoareTripleChecker+Invalid, 1164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:00:17,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [696 Valid, 3557 Invalid, 1164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1155 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 06:00:17,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2023-11-29 06:00:17,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 533. [2023-11-29 06:00:17,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 524 states have (on average 1.4599236641221374) internal successors, (765), 528 states have internal predecessors, (765), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 06:00:17,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 772 transitions. [2023-11-29 06:00:17,081 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 772 transitions. Word has length 101 [2023-11-29 06:00:17,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:00:17,081 INFO L495 AbstractCegarLoop]: Abstraction has 533 states and 772 transitions. [2023-11-29 06:00:17,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:00:17,081 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 772 transitions. [2023-11-29 06:00:17,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-29 06:00:17,082 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:00:17,082 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:00:17,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-29 06:00:17,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 06:00:17,284 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:00:17,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:00:17,285 INFO L85 PathProgramCache]: Analyzing trace with hash 789231119, now seen corresponding path program 1 times [2023-11-29 06:00:17,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:00:17,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773592212] [2023-11-29 06:00:17,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:00:17,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:00:17,331 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:00:17,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1998187924] [2023-11-29 06:00:17,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:00:17,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:00:17,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:00:17,333 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:00:17,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 06:00:17,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:00:17,708 INFO L262 TraceCheckSpWp]: Trace formula consists of 639 conjuncts, 52 conjunts are in the unsatisfiable core [2023-11-29 06:00:17,713 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:00:17,716 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 [2023-11-29 06:00:17,737 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 [2023-11-29 06:00:17,753 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 23 treesize of output 11 [2023-11-29 06:00:18,182 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 06:00:18,183 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 23 [2023-11-29 06:00:18,493 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 06:00:18,493 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:00:18,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:00:18,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773592212] [2023-11-29 06:00:18,493 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:00:18,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998187924] [2023-11-29 06:00:18,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1998187924] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:00:18,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:00:18,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-29 06:00:18,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067001007] [2023-11-29 06:00:18,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:00:18,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 06:00:18,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:00:18,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 06:00:18,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:00:18,496 INFO L87 Difference]: Start difference. First operand 533 states and 772 transitions. Second operand has 14 states, 14 states have (on average 6.785714285714286) internal successors, (95), 13 states have internal predecessors, (95), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:00:21,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:00:21,074 INFO L93 Difference]: Finished difference Result 1287 states and 1881 transitions. [2023-11-29 06:00:21,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:00:21,074 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.785714285714286) internal successors, (95), 13 states have internal predecessors, (95), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 102 [2023-11-29 06:00:21,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:00:21,078 INFO L225 Difference]: With dead ends: 1287 [2023-11-29 06:00:21,078 INFO L226 Difference]: Without dead ends: 792 [2023-11-29 06:00:21,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2023-11-29 06:00:21,079 INFO L413 NwaCegarLoop]: 426 mSDtfsCounter, 515 mSDsluCounter, 3930 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 4356 SdHoareTripleChecker+Invalid, 1410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:00:21,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 4356 Invalid, 1410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-29 06:00:21,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2023-11-29 06:00:21,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 533. [2023-11-29 06:00:21,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 524 states have (on average 1.4561068702290076) internal successors, (763), 528 states have internal predecessors, (763), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 06:00:21,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 770 transitions. [2023-11-29 06:00:21,103 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 770 transitions. Word has length 102 [2023-11-29 06:00:21,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:00:21,104 INFO L495 AbstractCegarLoop]: Abstraction has 533 states and 770 transitions. [2023-11-29 06:00:21,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.785714285714286) internal successors, (95), 13 states have internal predecessors, (95), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:00:21,104 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 770 transitions. [2023-11-29 06:00:21,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 06:00:21,105 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:00:21,105 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:00:21,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-29 06:00:21,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 06:00:21,306 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:00:21,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:00:21,306 INFO L85 PathProgramCache]: Analyzing trace with hash 595129452, now seen corresponding path program 1 times [2023-11-29 06:00:21,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:00:21,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381070423] [2023-11-29 06:00:21,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:00:21,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:00:21,348 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:00:21,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1824785412] [2023-11-29 06:00:21,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:00:21,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:00:21,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:00:21,349 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:00:21,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 06:00:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:00:21,815 INFO L262 TraceCheckSpWp]: Trace formula consists of 638 conjuncts, 118 conjunts are in the unsatisfiable core [2023-11-29 06:00:21,823 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:00:21,826 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 [2023-11-29 06:00:21,835 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 [2023-11-29 06:00:21,858 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 [2023-11-29 06:00:21,880 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 23 treesize of output 11 [2023-11-29 06:00:21,883 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 7 treesize of output 3 [2023-11-29 06:00:22,088 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 15 treesize of output 1 [2023-11-29 06:00:22,104 INFO L349 Elim1Store]: treesize reduction 26, result has 35.0 percent of original size [2023-11-29 06:00:22,105 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 25 treesize of output 29 [2023-11-29 06:00:22,116 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 15 treesize of output 1 [2023-11-29 06:00:22,164 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 18 treesize of output 10 [2023-11-29 06:00:22,303 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-29 06:00:22,304 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 50 treesize of output 45 [2023-11-29 06:00:22,314 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 16 treesize of output 1 [2023-11-29 06:00:25,027 INFO L224 Elim1Store]: Index analysis took 104 ms [2023-11-29 06:02:48,863 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 101 [2023-11-29 06:02:48,863 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2023-11-29 06:02:48,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:02:48,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381070423] [2023-11-29 06:02:48,864 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:02:48,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824785412] [2023-11-29 06:02:48,864 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2023-11-29 06:02:48,872 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 06:02:49,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 06:02:49,065 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/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.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:192) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:124) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:543) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:522) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:515) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:326) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) 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:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:298) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:184) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:110) 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.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) 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:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) 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$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:281) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:620) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:120) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:370) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:649) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:230) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:324) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:346) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:227) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:190) ... 53 more 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) ... 71 more [2023-11-29 06:02:49,069 INFO L158 Benchmark]: Toolchain (without parser) took 186130.43ms. Allocated memory was 174.1MB in the beginning and 3.9GB in the end (delta: 3.7GB). Free memory was 140.3MB in the beginning and 2.1GB in the end (delta: -1.9GB). Peak memory consumption was 2.7GB. Max. memory is 16.1GB. [2023-11-29 06:02:49,069 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 125.8MB. Free memory is still 69.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:02:49,069 INFO L158 Benchmark]: CACSL2BoogieTranslator took 644.37ms. Allocated memory is still 174.1MB. Free memory was 139.5MB in the beginning and 106.9MB in the end (delta: 32.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-29 06:02:49,069 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.21ms. Allocated memory is still 174.1MB. Free memory was 106.9MB in the beginning and 98.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-29 06:02:49,069 INFO L158 Benchmark]: Boogie Preprocessor took 182.84ms. Allocated memory is still 174.1MB. Free memory was 98.6MB in the beginning and 80.5MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-29 06:02:49,070 INFO L158 Benchmark]: RCFGBuilder took 1657.27ms. Allocated memory is still 174.1MB. Free memory was 80.5MB in the beginning and 108.6MB in the end (delta: -28.1MB). Peak memory consumption was 46.3MB. Max. memory is 16.1GB. [2023-11-29 06:02:49,070 INFO L158 Benchmark]: TraceAbstraction took 183547.21ms. Allocated memory was 174.1MB in the beginning and 3.9GB in the end (delta: 3.7GB). Free memory was 107.5MB in the beginning and 2.1GB in the end (delta: -2.0GB). Peak memory consumption was 2.7GB. Max. memory is 16.1GB. [2023-11-29 06:02:49,072 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 125.8MB. Free memory is still 69.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 644.37ms. Allocated memory is still 174.1MB. Free memory was 139.5MB in the beginning and 106.9MB in the end (delta: 32.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.21ms. Allocated memory is still 174.1MB. Free memory was 106.9MB in the beginning and 98.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 182.84ms. Allocated memory is still 174.1MB. Free memory was 98.6MB in the beginning and 80.5MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * RCFGBuilder took 1657.27ms. Allocated memory is still 174.1MB. Free memory was 80.5MB in the beginning and 108.6MB in the end (delta: -28.1MB). Peak memory consumption was 46.3MB. Max. memory is 16.1GB. * TraceAbstraction took 183547.21ms. Allocated memory was 174.1MB in the beginning and 3.9GB in the end (delta: 3.7GB). Free memory was 107.5MB in the beginning and 2.1GB in the end (delta: -2.0GB). Peak memory consumption was 2.7GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/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: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/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.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:192) 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_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 67499ec0709cfdcc368630c5b1d94f26157589b8bf16f22cf5d62554760c6dd7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:02:50,909 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:02:50,989 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2023-11-29 06:02:51,001 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:02:51,002 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:02:51,034 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:02:51,035 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:02:51,035 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:02:51,036 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:02:51,037 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:02:51,037 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:02:51,038 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:02:51,039 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:02:51,040 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:02:51,040 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:02:51,041 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:02:51,041 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:02:51,042 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 06:02:51,042 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 06:02:51,043 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:02:51,043 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:02:51,044 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:02:51,044 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:02:51,045 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 06:02:51,045 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 06:02:51,046 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 06:02:51,046 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 06:02:51,047 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 06:02:51,047 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 06:02:51,047 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:02:51,048 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:02:51,048 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:02:51,049 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:02:51,049 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:02:51,049 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:02:51,050 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:02:51,050 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:02:51,050 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:02:51,051 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:02:51,051 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 06:02:51,051 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 06:02:51,051 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:02:51,052 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:02:51,052 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:02:51,052 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:02:51,052 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:02:51,053 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 06:02:51,053 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_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67499ec0709cfdcc368630c5b1d94f26157589b8bf16f22cf5d62554760c6dd7 [2023-11-29 06:02:51,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:02:51,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:02:51,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:02:51,358 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:02:51,359 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:02:51,360 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-1.i [2023-11-29 06:02:54,117 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:02:54,379 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:02:54,380 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-1.i [2023-11-29 06:02:54,410 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/data/00467742d/450bfe0f9aca469dbf3d9323daf0f517/FLAG21a0b0986 [2023-11-29 06:02:54,424 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/data/00467742d/450bfe0f9aca469dbf3d9323daf0f517 [2023-11-29 06:02:54,427 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:02:54,428 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:02:54,430 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:02:54,430 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:02:54,435 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:02:54,435 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:02:54" (1/1) ... [2023-11-29 06:02:54,436 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3da3ca2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:02:54, skipping insertion in model container [2023-11-29 06:02:54,437 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:02:54" (1/1) ... [2023-11-29 06:02:54,524 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:02:54,960 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:02:54,974 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-29 06:02:54,990 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:02:55,074 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:02:55,078 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:02:55,159 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:02:55,198 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:02:55,206 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:02:55,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:02:55 WrapperNode [2023-11-29 06:02:55,207 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:02:55,208 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:02:55,208 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:02:55,208 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:02:55,216 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:02:55" (1/1) ... [2023-11-29 06:02:55,249 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:02:55" (1/1) ... [2023-11-29 06:02:55,305 INFO L138 Inliner]: procedures = 179, calls = 280, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1008 [2023-11-29 06:02:55,306 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:02:55,307 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:02:55,307 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:02:55,307 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:02:55,319 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:02:55" (1/1) ... [2023-11-29 06:02:55,320 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:02:55" (1/1) ... [2023-11-29 06:02:55,332 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:02:55" (1/1) ... [2023-11-29 06:02:55,413 INFO L175 MemorySlicer]: Split 258 memory accesses to 4 slices as follows [2, 217, 5, 34]. 84 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 55 writes are split as follows [0, 50, 1, 4]. [2023-11-29 06:02:55,414 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:02:55" (1/1) ... [2023-11-29 06:02:55,414 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:02:55" (1/1) ... [2023-11-29 06:02:55,461 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:02:55" (1/1) ... [2023-11-29 06:02:55,472 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:02:55" (1/1) ... [2023-11-29 06:02:55,478 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:02:55" (1/1) ... [2023-11-29 06:02:55,486 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:02:55" (1/1) ... [2023-11-29 06:02:55,498 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:02:55,499 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:02:55,499 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:02:55,500 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:02:55,501 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:02:55" (1/1) ... [2023-11-29 06:02:55,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:02:55,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:02:55,534 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:02:55,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:02:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-29 06:02:55,569 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-29 06:02:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-29 06:02:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-29 06:02:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-29 06:02:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-29 06:02:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-29 06:02:55,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-29 06:02:55,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-29 06:02:55,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-29 06:02:55,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-29 06:02:55,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-29 06:02:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-29 06:02:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-29 06:02:55,572 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-29 06:02:55,572 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-29 06:02:55,573 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-29 06:02:55,573 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-29 06:02:55,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 06:02:55,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:02:55,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 06:02:55,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 06:02:55,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 06:02:55,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 06:02:55,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 06:02:55,574 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-29 06:02:55,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 06:02:55,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 06:02:55,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 06:02:55,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 06:02:55,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 06:02:55,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-29 06:02:55,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-29 06:02:55,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-29 06:02:55,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-29 06:02:55,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 06:02:55,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 06:02:55,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-29 06:02:55,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-29 06:02:55,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:02:55,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:02:55,793 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:02:55,795 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:03:04,287 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:03:04,329 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:03:04,329 INFO L309 CfgBuilder]: Removed 63 assume(true) statements. [2023-11-29 06:03:04,330 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:03:04 BoogieIcfgContainer [2023-11-29 06:03:04,330 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:03:04,332 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:03:04,333 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:03:04,336 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:03:04,336 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:02:54" (1/3) ... [2023-11-29 06:03:04,337 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@283e651e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:03:04, skipping insertion in model container [2023-11-29 06:03:04,337 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:02:55" (2/3) ... [2023-11-29 06:03:04,337 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@283e651e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:03:04, skipping insertion in model container [2023-11-29 06:03:04,337 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:03:04" (3/3) ... [2023-11-29 06:03:04,339 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test7-1.i [2023-11-29 06:03:04,357 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:03:04,358 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-29 06:03:04,410 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:03:04,417 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@6c86d3f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:03:04,418 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-29 06:03:04,423 INFO L276 IsEmpty]: Start isEmpty. Operand has 202 states, 188 states have (on average 1.6861702127659575) internal successors, (317), 195 states have internal predecessors, (317), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 06:03:04,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 06:03:04,431 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:03:04,431 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 06:03:04,432 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:03:04,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:03:04,437 INFO L85 PathProgramCache]: Analyzing trace with hash -676195898, now seen corresponding path program 1 times [2023-11-29 06:03:04,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:03:04,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1074980481] [2023-11-29 06:03:04,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:04,451 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:03:04,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:03:04,453 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:03:04,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-29 06:03:04,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:04,695 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 06:03:04,700 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:03:04,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:03:04,719 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:03:04,719 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:03:04,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1074980481] [2023-11-29 06:03:04,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1074980481] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:03:04,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:03:04,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:03:04,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437546555] [2023-11-29 06:03:04,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:03:04,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 06:03:04,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:03:04,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 06:03:04,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 06:03:04,751 INFO L87 Difference]: Start difference. First operand has 202 states, 188 states have (on average 1.6861702127659575) internal successors, (317), 195 states have internal predecessors, (317), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-11-29 06:03:04,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:03:04,811 INFO L93 Difference]: Finished difference Result 398 states and 651 transitions. [2023-11-29 06:03:04,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 06:03:04,813 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2023-11-29 06:03:04,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:03:04,823 INFO L225 Difference]: With dead ends: 398 [2023-11-29 06:03:04,823 INFO L226 Difference]: Without dead ends: 190 [2023-11-29 06:03:04,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 06:03:04,830 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:03:04,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 249 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:03:04,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2023-11-29 06:03:04,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2023-11-29 06:03:04,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 182 states have (on average 1.3076923076923077) internal successors, (238), 185 states have internal predecessors, (238), 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) [2023-11-29 06:03:04,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 244 transitions. [2023-11-29 06:03:04,882 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 244 transitions. Word has length 6 [2023-11-29 06:03:04,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:03:04,882 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 244 transitions. [2023-11-29 06:03:04,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-11-29 06:03:04,883 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 244 transitions. [2023-11-29 06:03:04,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 06:03:04,884 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:03:04,884 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 06:03:04,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-29 06:03:05,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:03:05,085 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:03:05,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:03:05,085 INFO L85 PathProgramCache]: Analyzing trace with hash -676193976, now seen corresponding path program 1 times [2023-11-29 06:03:05,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:03:05,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1810649181] [2023-11-29 06:03:05,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:05,086 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:03:05,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:03:05,088 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:03:05,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-29 06:03:05,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:05,316 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:03:05,319 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:03:05,365 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 06:03:05,366 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 06:03:05,375 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 35 treesize of output 29 [2023-11-29 06:03:05,619 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 06:03:05,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 122 treesize of output 40 [2023-11-29 06:03:05,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:03:05,674 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:03:05,675 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:03:05,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1810649181] [2023-11-29 06:03:05,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1810649181] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:03:05,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:03:05,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:03:05,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131789788] [2023-11-29 06:03:05,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:03:05,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:03:05,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:03:05,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:03:05,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:03:05,679 INFO L87 Difference]: Start difference. First operand 190 states and 244 transitions. Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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) [2023-11-29 06:03:06,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:03:06,838 INFO L93 Difference]: Finished difference Result 464 states and 599 transitions. [2023-11-29 06:03:06,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:03:06,840 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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 6 [2023-11-29 06:03:06,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:03:06,844 INFO L225 Difference]: With dead ends: 464 [2023-11-29 06:03:06,844 INFO L226 Difference]: Without dead ends: 373 [2023-11-29 06:03:06,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:03:06,847 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 227 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 1164 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:03:06,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 1164 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 06:03:06,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2023-11-29 06:03:06,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 196. [2023-11-29 06:03:06,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 188 states have (on average 1.297872340425532) internal successors, (244), 191 states have internal predecessors, (244), 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) [2023-11-29 06:03:06,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 250 transitions. [2023-11-29 06:03:06,870 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 250 transitions. Word has length 6 [2023-11-29 06:03:06,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:03:06,870 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 250 transitions. [2023-11-29 06:03:06,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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) [2023-11-29 06:03:06,870 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 250 transitions. [2023-11-29 06:03:06,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 06:03:06,873 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:03:06,873 INFO L195 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] [2023-11-29 06:03:06,877 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-29 06:03:07,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:03:07,074 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:03:07,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:03:07,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1827504550, now seen corresponding path program 1 times [2023-11-29 06:03:07,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:03:07,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [4488980] [2023-11-29 06:03:07,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:07,076 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:03:07,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:03:07,077 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:03:07,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-29 06:03:07,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:07,468 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:03:07,472 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:03:07,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:03:07,498 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:03:07,498 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:03:07,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [4488980] [2023-11-29 06:03:07,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [4488980] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:03:07,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:03:07,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:03:07,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160783757] [2023-11-29 06:03:07,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:03:07,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:03:07,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:03:07,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:03:07,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:03:07,500 INFO L87 Difference]: Start difference. First operand 196 states and 250 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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) [2023-11-29 06:03:07,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:03:07,626 INFO L93 Difference]: Finished difference Result 389 states and 500 transitions. [2023-11-29 06:03:07,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:03:07,627 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 61 [2023-11-29 06:03:07,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:03:07,628 INFO L225 Difference]: With dead ends: 389 [2023-11-29 06:03:07,628 INFO L226 Difference]: Without dead ends: 200 [2023-11-29 06:03:07,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:03:07,631 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 36 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:03:07,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 615 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:03:07,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2023-11-29 06:03:07,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 199. [2023-11-29 06:03:07,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 191 states have (on average 1.2513089005235603) internal successors, (239), 194 states have internal predecessors, (239), 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) [2023-11-29 06:03:07,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 245 transitions. [2023-11-29 06:03:07,645 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 245 transitions. Word has length 61 [2023-11-29 06:03:07,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:03:07,645 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 245 transitions. [2023-11-29 06:03:07,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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) [2023-11-29 06:03:07,646 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 245 transitions. [2023-11-29 06:03:07,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 06:03:07,648 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:03:07,648 INFO L195 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] [2023-11-29 06:03:07,657 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-29 06:03:07,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:03:07,853 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:03:07,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:03:07,853 INFO L85 PathProgramCache]: Analyzing trace with hash 673228262, now seen corresponding path program 1 times [2023-11-29 06:03:07,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:03:07,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1594071847] [2023-11-29 06:03:07,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:07,854 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:03:07,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:03:07,856 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:03:07,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-29 06:03:08,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:08,219 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:03:08,223 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:03:08,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:03:08,586 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:03:08,586 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:03:08,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1594071847] [2023-11-29 06:03:08,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1594071847] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:03:08,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:03:08,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:03:08,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312171606] [2023-11-29 06:03:08,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:03:08,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:03:08,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:03:08,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:03:08,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:03:08,590 INFO L87 Difference]: Start difference. First operand 199 states and 245 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 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) [2023-11-29 06:03:09,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:03:09,542 INFO L93 Difference]: Finished difference Result 501 states and 619 transitions. [2023-11-29 06:03:09,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:03:09,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 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 61 [2023-11-29 06:03:09,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:03:09,545 INFO L225 Difference]: With dead ends: 501 [2023-11-29 06:03:09,545 INFO L226 Difference]: Without dead ends: 309 [2023-11-29 06:03:09,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:03:09,547 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 98 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:03:09,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 473 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 06:03:09,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2023-11-29 06:03:09,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 307. [2023-11-29 06:03:09,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 299 states have (on average 1.2441471571906355) internal successors, (372), 302 states have internal predecessors, (372), 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) [2023-11-29 06:03:09,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 378 transitions. [2023-11-29 06:03:09,565 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 378 transitions. Word has length 61 [2023-11-29 06:03:09,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:03:09,566 INFO L495 AbstractCegarLoop]: Abstraction has 307 states and 378 transitions. [2023-11-29 06:03:09,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 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) [2023-11-29 06:03:09,567 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 378 transitions. [2023-11-29 06:03:09,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-29 06:03:09,568 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:03:09,569 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:03:09,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-11-29 06:03:09,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:03:09,772 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:03:09,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:03:09,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1146644739, now seen corresponding path program 1 times [2023-11-29 06:03:09,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:03:09,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1016845046] [2023-11-29 06:03:09,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:09,774 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:03:09,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:03:09,775 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:03:09,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-29 06:03:10,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:10,281 INFO L262 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:03:10,285 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:03:10,308 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:03:10,308 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:03:10,309 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:03:10,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1016845046] [2023-11-29 06:03:10,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1016845046] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:03:10,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:03:10,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:03:10,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930842675] [2023-11-29 06:03:10,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:03:10,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:03:10,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:03:10,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:03:10,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:03:10,310 INFO L87 Difference]: Start difference. First operand 307 states and 378 transitions. Second operand has 4 states, 3 states have (on average 23.333333333333332) internal successors, (70), 4 states have internal predecessors, (70), 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) [2023-11-29 06:03:10,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:03:10,377 INFO L93 Difference]: Finished difference Result 569 states and 710 transitions. [2023-11-29 06:03:10,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:03:10,378 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 23.333333333333332) internal successors, (70), 4 states have internal predecessors, (70), 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 74 [2023-11-29 06:03:10,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:03:10,381 INFO L225 Difference]: With dead ends: 569 [2023-11-29 06:03:10,382 INFO L226 Difference]: Without dead ends: 309 [2023-11-29 06:03:10,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:03:10,383 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 1 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:03:10,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 683 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:03:10,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2023-11-29 06:03:10,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2023-11-29 06:03:10,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 300 states have (on average 1.2466666666666666) internal successors, (374), 304 states have internal predecessors, (374), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 06:03:10,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 381 transitions. [2023-11-29 06:03:10,400 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 381 transitions. Word has length 74 [2023-11-29 06:03:10,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:03:10,400 INFO L495 AbstractCegarLoop]: Abstraction has 309 states and 381 transitions. [2023-11-29 06:03:10,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 23.333333333333332) internal successors, (70), 4 states have internal predecessors, (70), 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) [2023-11-29 06:03:10,401 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 381 transitions. [2023-11-29 06:03:10,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-29 06:03:10,403 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:03:10,403 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:03:10,413 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-11-29 06:03:10,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:03:10,613 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:03:10,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:03:10,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1909384263, now seen corresponding path program 1 times [2023-11-29 06:03:10,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:03:10,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [982343011] [2023-11-29 06:03:10,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:10,614 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:03:10,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:03:10,615 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:03:10,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-29 06:03:11,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:11,181 INFO L262 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:03:11,185 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:03:11,225 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:03:11,225 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:03:11,333 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 06:03:11,333 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:03:11,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [982343011] [2023-11-29 06:03:11,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [982343011] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:03:11,334 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:03:11,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 06:03:11,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281525634] [2023-11-29 06:03:11,334 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:03:11,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:03:11,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:03:11,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:03:11,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:03:11,336 INFO L87 Difference]: Start difference. First operand 309 states and 381 transitions. Second operand has 8 states, 6 states have (on average 13.0) internal successors, (78), 8 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:03:11,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:03:11,553 INFO L93 Difference]: Finished difference Result 580 states and 728 transitions. [2023-11-29 06:03:11,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:03:11,554 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 13.0) internal successors, (78), 8 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 76 [2023-11-29 06:03:11,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:03:11,557 INFO L225 Difference]: With dead ends: 580 [2023-11-29 06:03:11,557 INFO L226 Difference]: Without dead ends: 318 [2023-11-29 06:03:11,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:03:11,559 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 7 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:03:11,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 683 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:03:11,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2023-11-29 06:03:11,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 317. [2023-11-29 06:03:11,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 307 states have (on average 1.260586319218241) internal successors, (387), 311 states have internal predecessors, (387), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 06:03:11,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 394 transitions. [2023-11-29 06:03:11,575 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 394 transitions. Word has length 76 [2023-11-29 06:03:11,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:03:11,575 INFO L495 AbstractCegarLoop]: Abstraction has 317 states and 394 transitions. [2023-11-29 06:03:11,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 13.0) internal successors, (78), 8 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:03:11,575 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 394 transitions. [2023-11-29 06:03:11,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 06:03:11,577 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:03:11,577 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:03:11,587 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-11-29 06:03:11,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:03:11,780 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:03:11,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:03:11,780 INFO L85 PathProgramCache]: Analyzing trace with hash -29997859, now seen corresponding path program 2 times [2023-11-29 06:03:11,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:03:11,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [670718158] [2023-11-29 06:03:11,781 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:03:11,781 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:03:11,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:03:11,782 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:03:11,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-29 06:03:12,141 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 06:03:12,141 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:03:12,155 INFO L262 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:03:12,159 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:03:12,164 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 06:03:12,165 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 06:03:12,167 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 35 treesize of output 29 [2023-11-29 06:03:13,403 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 06:03:13,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 22 [2023-11-29 06:03:13,432 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-29 06:03:13,432 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:03:13,432 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:03:13,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [670718158] [2023-11-29 06:03:13,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [670718158] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:03:13,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:03:13,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:03:13,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629551352] [2023-11-29 06:03:13,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:03:13,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:03:13,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:03:13,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:03:13,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:03:13,435 INFO L87 Difference]: Start difference. First operand 317 states and 394 transitions. Second operand has 5 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:03:17,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:03:21,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:03:25,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:03:26,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:03:30,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:03:35,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:03:35,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:03:35,025 INFO L93 Difference]: Finished difference Result 497 states and 629 transitions. [2023-11-29 06:03:35,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:03:35,026 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 80 [2023-11-29 06:03:35,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:03:35,030 INFO L225 Difference]: With dead ends: 497 [2023-11-29 06:03:35,030 INFO L226 Difference]: Without dead ends: 496 [2023-11-29 06:03:35,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 73 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:03:35,031 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 151 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 885 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:03:35,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 885 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 94 Invalid, 5 Unknown, 0 Unchecked, 21.5s Time] [2023-11-29 06:03:35,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2023-11-29 06:03:35,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 379. [2023-11-29 06:03:35,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 363 states have (on average 1.2699724517906337) internal successors, (461), 368 states have internal predecessors, (461), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-11-29 06:03:35,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 475 transitions. [2023-11-29 06:03:35,059 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 475 transitions. Word has length 80 [2023-11-29 06:03:35,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:03:35,059 INFO L495 AbstractCegarLoop]: Abstraction has 379 states and 475 transitions. [2023-11-29 06:03:35,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:03:35,060 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 475 transitions. [2023-11-29 06:03:35,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-29 06:03:35,061 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:03:35,061 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:03:35,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-11-29 06:03:35,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:03:35,262 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:03:35,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:03:35,262 INFO L85 PathProgramCache]: Analyzing trace with hash -92682315, now seen corresponding path program 1 times [2023-11-29 06:03:35,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:03:35,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2049931275] [2023-11-29 06:03:35,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:35,263 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:03:35,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:03:35,264 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:03:35,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-29 06:03:35,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:35,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:03:35,760 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:03:35,827 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 06:03:35,827 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:03:36,025 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 5 proven. 26 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:03:36,026 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:03:36,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2049931275] [2023-11-29 06:03:36,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2049931275] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:03:36,026 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:03:36,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-29 06:03:36,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130592825] [2023-11-29 06:03:36,026 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:03:36,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 06:03:36,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:03:36,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 06:03:36,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:03:36,028 INFO L87 Difference]: Start difference. First operand 379 states and 475 transitions. Second operand has 14 states, 12 states have (on average 7.416666666666667) internal successors, (89), 14 states have internal predecessors, (89), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:03:36,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:03:36,801 INFO L93 Difference]: Finished difference Result 731 states and 938 transitions. [2023-11-29 06:03:36,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 06:03:36,802 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.416666666666667) internal successors, (89), 14 states have internal predecessors, (89), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 85 [2023-11-29 06:03:36,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:03:36,804 INFO L225 Difference]: With dead ends: 731 [2023-11-29 06:03:36,804 INFO L226 Difference]: Without dead ends: 405 [2023-11-29 06:03:36,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=257, Invalid=499, Unknown=0, NotChecked=0, Total=756 [2023-11-29 06:03:36,805 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 13 mSDsluCounter, 1807 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2036 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:03:36,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2036 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:03:36,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2023-11-29 06:03:36,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 397. [2023-11-29 06:03:36,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 381 states have (on average 1.272965879265092) internal successors, (485), 386 states have internal predecessors, (485), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-11-29 06:03:36,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 499 transitions. [2023-11-29 06:03:36,833 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 499 transitions. Word has length 85 [2023-11-29 06:03:36,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:03:36,833 INFO L495 AbstractCegarLoop]: Abstraction has 397 states and 499 transitions. [2023-11-29 06:03:36,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 7.416666666666667) internal successors, (89), 14 states have internal predecessors, (89), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:03:36,833 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 499 transitions. [2023-11-29 06:03:36,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-29 06:03:36,835 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:03:36,835 INFO L195 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:03:36,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-11-29 06:03:37,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:03:37,036 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:03:37,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:03:37,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1670033836, now seen corresponding path program 2 times [2023-11-29 06:03:37,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:03:37,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1942479570] [2023-11-29 06:03:37,037 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:03:37,037 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:03:37,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:03:37,038 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:03:37,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-29 06:03:37,596 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:03:37,596 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:03:37,623 INFO L262 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 06:03:37,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:03:37,781 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 73 proven. 55 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 06:03:37,781 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:03:38,312 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 5 proven. 122 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:03:38,312 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:03:38,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1942479570] [2023-11-29 06:03:38,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1942479570] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:03:38,313 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:03:38,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-29 06:03:38,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341283691] [2023-11-29 06:03:38,313 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:03:38,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 06:03:38,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:03:38,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 06:03:38,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-11-29 06:03:38,315 INFO L87 Difference]: Start difference. First operand 397 states and 499 transitions. Second operand has 26 states, 24 states have (on average 4.208333333333333) internal successors, (101), 26 states have internal predecessors, (101), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:03:40,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:03:40,926 INFO L93 Difference]: Finished difference Result 791 states and 1034 transitions. [2023-11-29 06:03:40,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-11-29 06:03:40,929 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 4.208333333333333) internal successors, (101), 26 states have internal predecessors, (101), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 94 [2023-11-29 06:03:40,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:03:40,932 INFO L225 Difference]: With dead ends: 791 [2023-11-29 06:03:40,933 INFO L226 Difference]: Without dead ends: 453 [2023-11-29 06:03:40,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1025, Invalid=2281, Unknown=0, NotChecked=0, Total=3306 [2023-11-29 06:03:40,935 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 24 mSDsluCounter, 2713 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 2942 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:03:40,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 2942 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 06:03:40,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2023-11-29 06:03:40,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 433. [2023-11-29 06:03:40,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 417 states have (on average 1.2781774580335732) internal successors, (533), 422 states have internal predecessors, (533), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-11-29 06:03:40,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 547 transitions. [2023-11-29 06:03:40,982 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 547 transitions. Word has length 94 [2023-11-29 06:03:40,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:03:40,982 INFO L495 AbstractCegarLoop]: Abstraction has 433 states and 547 transitions. [2023-11-29 06:03:40,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 4.208333333333333) internal successors, (101), 26 states have internal predecessors, (101), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:03:40,983 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 547 transitions. [2023-11-29 06:03:40,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-29 06:03:40,984 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:03:40,984 INFO L195 NwaCegarLoop]: trace histogram [33, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:03:40,997 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-11-29 06:03:41,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:03:41,185 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:03:41,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:03:41,185 INFO L85 PathProgramCache]: Analyzing trace with hash 591994868, now seen corresponding path program 3 times [2023-11-29 06:03:41,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:03:41,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [550561992] [2023-11-29 06:03:41,186 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:03:41,186 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:03:41,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:03:41,187 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:03:41,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-29 06:03:41,749 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 06:03:41,750 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:03:41,769 INFO L262 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 06:03:41,774 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:03:41,779 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 06:03:41,780 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 06:03:41,782 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 35 treesize of output 29 [2023-11-29 06:03:44,609 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 06:03:44,609 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 160 treesize of output 56 [2023-11-29 06:03:48,869 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 06:03:48,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 134 treesize of output 58 [2023-11-29 06:03:48,929 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 597 trivial. 0 not checked. [2023-11-29 06:03:48,929 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:04:11,161 WARN L876 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2182 (_ BitVec 8)) (v_ArrVal_2179 (_ BitVec 8))) (bvsle (_ bv9223372034707292160 63) (let ((.cse0 ((_ sign_extend 31) (let ((.cse1 (bvadd (_ bv1 32) |c_ULTIMATE.start_main_#t~post4#1|))) (concat (concat (concat ((_ extract 31 24) .cse1) v_ArrVal_2179) v_ArrVal_2182) ((_ extract 7 0) .cse1)))))) (bvmul .cse0 .cse0)))) is different from true [2023-11-29 06:04:23,374 WARN L876 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2182 (_ BitVec 8)) (v_ArrVal_2179 (_ BitVec 8))) (bvsle (_ bv9223372034707292160 63) (let ((.cse0 ((_ sign_extend 31) (let ((.cse1 (bvadd (let ((.cse2 (select |c_#memory_int#3| |c_ULTIMATE.start_main_~#i~0#1.base|))) (concat (concat (concat (select .cse2 (bvadd |c_ULTIMATE.start_main_~#i~0#1.offset| (_ bv3 32))) (select .cse2 (bvadd |c_ULTIMATE.start_main_~#i~0#1.offset| (_ bv2 32)))) (select .cse2 (bvadd |c_ULTIMATE.start_main_~#i~0#1.offset| (_ bv1 32)))) (select .cse2 |c_ULTIMATE.start_main_~#i~0#1.offset|))) (_ bv1 32)))) (concat (concat (concat ((_ extract 31 24) .cse1) v_ArrVal_2179) v_ArrVal_2182) ((_ extract 7 0) .cse1)))))) (bvmul .cse0 .cse0)))) is different from true [2023-11-29 06:05:18,807 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:05:18,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [550561992] [2023-11-29 06:05:18,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [550561992] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:05:18,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [859129819] [2023-11-29 06:05:18,808 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:05:18,808 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 06:05:18,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 06:05:18,809 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 06:05:18,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8bc078-6e74-4497-9605-c27a3f1a968d/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process