./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4fc63b2a 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_ccdc7d38-c958-4861-98eb-c1e37b0356f0/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccdc7d38-c958-4861-98eb-c1e37b0356f0/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccdc7d38-c958-4861-98eb-c1e37b0356f0/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccdc7d38-c958-4861-98eb-c1e37b0356f0/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccdc7d38-c958-4861-98eb-c1e37b0356f0/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccdc7d38-c958-4861-98eb-c1e37b0356f0/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9fd228108b00a337c799c923821cefd2f3f25ea1b43eb489705884efe2b6ca03 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:01:44,143 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:01:44,244 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccdc7d38-c958-4861-98eb-c1e37b0356f0/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-31 22:01:44,254 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:01:44,254 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:01:44,293 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:01:44,293 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:01:44,294 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:01:44,295 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:01:44,296 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:01:44,297 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:01:44,297 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:01:44,298 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:01:44,298 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:01:44,302 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:01:44,303 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:01:44,303 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:01:44,304 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:01:44,304 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:01:44,304 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:01:44,305 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-31 22:01:44,306 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-31 22:01:44,306 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-31 22:01:44,310 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:01:44,310 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 22:01:44,310 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:01:44,311 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:01:44,311 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:01:44,311 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:01:44,312 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:01:44,312 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:01:44,313 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:01:44,314 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:01:44,314 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:01:44,315 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:01:44,316 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:01:44,316 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:01:44,316 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:01:44,317 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:01:44,317 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:01:44,318 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:01:44,318 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:01:44,319 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_ccdc7d38-c958-4861-98eb-c1e37b0356f0/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccdc7d38-c958-4861-98eb-c1e37b0356f0/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fd228108b00a337c799c923821cefd2f3f25ea1b43eb489705884efe2b6ca03 [2024-10-31 22:01:44,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:01:44,699 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:01:44,703 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:01:44,705 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:01:44,706 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:01:44,707 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccdc7d38-c958-4861-98eb-c1e37b0356f0/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-1.i Unable to find full path for "g++" [2024-10-31 22:01:46,713 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:01:47,078 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:01:47,079 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccdc7d38-c958-4861-98eb-c1e37b0356f0/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-1.i [2024-10-31 22:01:47,106 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccdc7d38-c958-4861-98eb-c1e37b0356f0/bin/uautomizer-verify-4GaUIPS5ZU/data/fdb41c965/f72c5b7b619f4646b3c77ff505d3d496/FLAGe3a29234f [2024-10-31 22:01:47,129 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccdc7d38-c958-4861-98eb-c1e37b0356f0/bin/uautomizer-verify-4GaUIPS5ZU/data/fdb41c965/f72c5b7b619f4646b3c77ff505d3d496 [2024-10-31 22:01:47,131 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:01:47,133 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:01:47,134 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:01:47,135 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:01:47,141 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:01:47,143 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:01:47" (1/1) ... [2024-10-31 22:01:47,146 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44c52405 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:47, skipping insertion in model container [2024-10-31 22:01:47,146 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:01:47" (1/1) ... [2024-10-31 22:01:47,218 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:01:47,769 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:01:47,823 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:01:47,828 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:01:47,837 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:01:47,848 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:01:47,890 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:01:47,893 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:01:47,896 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:01:47,901 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:01:47,945 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:01:47,945 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:01:47,948 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:01:47,949 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:01:47,959 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:01:47,973 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:01:48,138 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:01:48,181 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:01:48,181 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:48 WrapperNode [2024-10-31 22:01:48,182 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:01:48,182 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:01:48,182 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:01:48,182 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:01:48,188 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:48" (1/1) ... [2024-10-31 22:01:48,243 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:48" (1/1) ... [2024-10-31 22:01:48,392 INFO L138 Inliner]: procedures = 177, calls = 375, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2052 [2024-10-31 22:01:48,392 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:01:48,398 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:01:48,399 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:01:48,399 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:01:48,411 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:48" (1/1) ... [2024-10-31 22:01:48,411 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:48" (1/1) ... [2024-10-31 22:01:48,434 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:48" (1/1) ... [2024-10-31 22:01:48,524 INFO L175 MemorySlicer]: Split 349 memory accesses to 3 slices as follows [2, 323, 24]. 93 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 83 writes are split as follows [0, 82, 1]. [2024-10-31 22:01:48,525 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:48" (1/1) ... [2024-10-31 22:01:48,525 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:48" (1/1) ... [2024-10-31 22:01:48,584 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:48" (1/1) ... [2024-10-31 22:01:48,605 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:48" (1/1) ... [2024-10-31 22:01:48,617 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:48" (1/1) ... [2024-10-31 22:01:48,631 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:48" (1/1) ... [2024-10-31 22:01:48,642 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:01:48,644 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:01:48,647 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:01:48,648 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:01:48,648 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:48" (1/1) ... [2024-10-31 22:01:48,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:01:48,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccdc7d38-c958-4861-98eb-c1e37b0356f0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:48,691 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccdc7d38-c958-4861-98eb-c1e37b0356f0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:48,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccdc7d38-c958-4861-98eb-c1e37b0356f0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:01:48,723 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-10-31 22:01:48,724 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-10-31 22:01:48,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 22:01:48,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-31 22:01:48,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-31 22:01:48,724 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-31 22:01:48,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-31 22:01:48,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 22:01:48,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-31 22:01:48,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-31 22:01:48,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-10-31 22:01:48,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-10-31 22:01:48,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-10-31 22:01:48,728 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-10-31 22:01:48,728 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-10-31 22:01:48,729 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-10-31 22:01:48,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 22:01:48,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:01:48,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-31 22:01:48,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-31 22:01:48,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-31 22:01:48,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:01:48,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-31 22:01:48,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-31 22:01:48,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-31 22:01:48,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:01:48,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:01:48,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:01:48,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-31 22:01:48,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:01:48,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:01:49,010 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:01:49,013 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:01:49,042 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-31 22:01:49,083 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-31 22:01:49,114 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-31 22:01:53,106 INFO L? ?]: Removed 1735 outVars from TransFormulas that were not future-live. [2024-10-31 22:01:53,106 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:01:53,170 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:01:53,174 INFO L316 CfgBuilder]: Removed 83 assume(true) statements. [2024-10-31 22:01:53,175 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:01:53 BoogieIcfgContainer [2024-10-31 22:01:53,175 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:01:53,177 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:01:53,178 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:01:53,182 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:01:53,182 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:01:47" (1/3) ... [2024-10-31 22:01:53,183 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e9e4f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:01:53, skipping insertion in model container [2024-10-31 22:01:53,183 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:48" (2/3) ... [2024-10-31 22:01:53,185 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e9e4f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:01:53, skipping insertion in model container [2024-10-31 22:01:53,185 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:01:53" (3/3) ... [2024-10-31 22:01:53,186 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test5-1.i [2024-10-31 22:01:53,205 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:01:53,206 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 712 error locations. [2024-10-31 22:01:53,301 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:01:53,307 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@56326fd8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:01:53,308 INFO L334 AbstractCegarLoop]: Starting to check reachability of 712 error locations. [2024-10-31 22:01:53,321 INFO L276 IsEmpty]: Start isEmpty. Operand has 1738 states, 1015 states have (on average 2.0344827586206895) internal successors, (2065), 1728 states have internal predecessors, (2065), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-31 22:01:53,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-31 22:01:53,331 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:01:53,332 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-31 22:01:53,332 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-10-31 22:01:53,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:53,340 INFO L85 PathProgramCache]: Analyzing trace with hash 63053744, now seen corresponding path program 1 times [2024-10-31 22:01:53,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:53,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799219721] [2024-10-31 22:01:53,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:53,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:53,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:53,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:53,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:53,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799219721] [2024-10-31 22:01:53,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799219721] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:53,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:53,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:01:53,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206069340] [2024-10-31 22:01:53,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:53,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:01:53,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:53,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:01:53,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:01:53,584 INFO L87 Difference]: Start difference. First operand has 1738 states, 1015 states have (on average 2.0344827586206895) internal successors, (2065), 1728 states have internal predecessors, (2065), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:53,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:53,697 INFO L93 Difference]: Finished difference Result 1718 states and 1978 transitions. [2024-10-31 22:01:53,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:01:53,704 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2024-10-31 22:01:53,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:01:53,739 INFO L225 Difference]: With dead ends: 1718 [2024-10-31 22:01:53,739 INFO L226 Difference]: Without dead ends: 1716 [2024-10-31 22:01:53,741 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:01:53,746 INFO L432 NwaCegarLoop]: 1978 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1978 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:01:53,747 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1978 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:01:53,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1716 states. [2024-10-31 22:01:53,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1716 to 1716. [2024-10-31 22:01:53,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1716 states, 1005 states have (on average 1.9422885572139303) internal successors, (1952), 1706 states have internal predecessors, (1952), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:01:53,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1716 states to 1716 states and 1976 transitions. [2024-10-31 22:01:53,861 INFO L78 Accepts]: Start accepts. Automaton has 1716 states and 1976 transitions. Word has length 5 [2024-10-31 22:01:53,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:01:53,862 INFO L471 AbstractCegarLoop]: Abstraction has 1716 states and 1976 transitions. [2024-10-31 22:01:53,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:53,862 INFO L276 IsEmpty]: Start isEmpty. Operand 1716 states and 1976 transitions. [2024-10-31 22:01:53,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-31 22:01:53,863 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:01:53,863 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-31 22:01:53,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:01:53,863 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-10-31 22:01:53,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:53,864 INFO L85 PathProgramCache]: Analyzing trace with hash 63053806, now seen corresponding path program 1 times [2024-10-31 22:01:53,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:53,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043364915] [2024-10-31 22:01:53,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:53,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:53,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:53,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:53,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:53,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043364915] [2024-10-31 22:01:53,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043364915] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:53,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:53,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:01:53,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828262038] [2024-10-31 22:01:53,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:53,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:01:53,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:53,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:01:53,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:01:53,998 INFO L87 Difference]: Start difference. First operand 1716 states and 1976 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:55,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:55,717 INFO L93 Difference]: Finished difference Result 1945 states and 2293 transitions. [2024-10-31 22:01:55,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:01:55,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2024-10-31 22:01:55,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:01:55,727 INFO L225 Difference]: With dead ends: 1945 [2024-10-31 22:01:55,727 INFO L226 Difference]: Without dead ends: 1945 [2024-10-31 22:01:55,730 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:01:55,731 INFO L432 NwaCegarLoop]: 1590 mSDtfsCounter, 1737 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1748 SdHoareTripleChecker+Valid, 1918 SdHoareTripleChecker+Invalid, 1006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-31 22:01:55,732 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1748 Valid, 1918 Invalid, 1006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 907 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-31 22:01:55,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1945 states. [2024-10-31 22:01:55,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1945 to 1624. [2024-10-31 22:01:55,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1624 states, 1005 states have (on average 1.8507462686567164) internal successors, (1860), 1614 states have internal predecessors, (1860), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:01:55,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1624 states to 1624 states and 1884 transitions. [2024-10-31 22:01:55,789 INFO L78 Accepts]: Start accepts. Automaton has 1624 states and 1884 transitions. Word has length 5 [2024-10-31 22:01:55,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:01:55,789 INFO L471 AbstractCegarLoop]: Abstraction has 1624 states and 1884 transitions. [2024-10-31 22:01:55,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:55,791 INFO L276 IsEmpty]: Start isEmpty. Operand 1624 states and 1884 transitions. [2024-10-31 22:01:55,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-31 22:01:55,791 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:01:55,791 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-31 22:01:55,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:01:55,792 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-10-31 22:01:55,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:55,792 INFO L85 PathProgramCache]: Analyzing trace with hash 63053807, now seen corresponding path program 1 times [2024-10-31 22:01:55,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:55,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043491194] [2024-10-31 22:01:55,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:55,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:55,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:55,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:55,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:55,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043491194] [2024-10-31 22:01:55,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043491194] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:55,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:55,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:01:55,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177346529] [2024-10-31 22:01:55,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:55,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:01:55,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:55,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:01:55,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:01:55,978 INFO L87 Difference]: Start difference. First operand 1624 states and 1884 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:57,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:57,771 INFO L93 Difference]: Finished difference Result 2361 states and 2785 transitions. [2024-10-31 22:01:57,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:01:57,771 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2024-10-31 22:01:57,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:01:57,781 INFO L225 Difference]: With dead ends: 2361 [2024-10-31 22:01:57,781 INFO L226 Difference]: Without dead ends: 2361 [2024-10-31 22:01:57,781 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:01:57,782 INFO L432 NwaCegarLoop]: 1955 mSDtfsCounter, 1217 mSDsluCounter, 935 mSDsCounter, 0 mSdLazyCounter, 950 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1222 SdHoareTripleChecker+Valid, 2890 SdHoareTripleChecker+Invalid, 975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-31 22:01:57,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1222 Valid, 2890 Invalid, 975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 950 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-31 22:01:57,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2361 states. [2024-10-31 22:01:57,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2361 to 1887. [2024-10-31 22:01:57,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1887 states, 1278 states have (on average 1.8262910798122065) internal successors, (2334), 1877 states have internal predecessors, (2334), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:01:57,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1887 states to 1887 states and 2358 transitions. [2024-10-31 22:01:57,840 INFO L78 Accepts]: Start accepts. Automaton has 1887 states and 2358 transitions. Word has length 5 [2024-10-31 22:01:57,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:01:57,840 INFO L471 AbstractCegarLoop]: Abstraction has 1887 states and 2358 transitions. [2024-10-31 22:01:57,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:57,841 INFO L276 IsEmpty]: Start isEmpty. Operand 1887 states and 2358 transitions. [2024-10-31 22:01:57,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-31 22:01:57,841 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:01:57,841 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-31 22:01:57,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:01:57,842 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr620REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-10-31 22:01:57,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:57,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1957056365, now seen corresponding path program 1 times [2024-10-31 22:01:57,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:57,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887524737] [2024-10-31 22:01:57,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:57,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:57,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:57,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:57,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:57,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887524737] [2024-10-31 22:01:57,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887524737] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:57,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:57,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:01:57,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006570265] [2024-10-31 22:01:57,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:57,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:01:57,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:57,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:01:57,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:01:57,905 INFO L87 Difference]: Start difference. First operand 1887 states and 2358 transitions. Second operand has 3 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) [2024-10-31 22:01:57,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:57,988 INFO L93 Difference]: Finished difference Result 3755 states and 4697 transitions. [2024-10-31 22:01:57,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:01:57,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 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 [2024-10-31 22:01:57,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:01:58,003 INFO L225 Difference]: With dead ends: 3755 [2024-10-31 22:01:58,003 INFO L226 Difference]: Without dead ends: 3755 [2024-10-31 22:01:58,004 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:01:58,005 INFO L432 NwaCegarLoop]: 2150 mSDtfsCounter, 1830 mSDsluCounter, 1864 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1841 SdHoareTripleChecker+Valid, 4014 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:01:58,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1841 Valid, 4014 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:01:58,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3755 states. [2024-10-31 22:01:58,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3755 to 1889. [2024-10-31 22:01:58,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1889 states, 1280 states have (on average 1.825) internal successors, (2336), 1879 states have internal predecessors, (2336), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:01:58,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1889 states to 1889 states and 2360 transitions. [2024-10-31 22:01:58,074 INFO L78 Accepts]: Start accepts. Automaton has 1889 states and 2360 transitions. Word has length 6 [2024-10-31 22:01:58,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:01:58,075 INFO L471 AbstractCegarLoop]: Abstraction has 1889 states and 2360 transitions. [2024-10-31 22:01:58,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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) [2024-10-31 22:01:58,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1889 states and 2360 transitions. [2024-10-31 22:01:58,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-31 22:01:58,075 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:01:58,076 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:01:58,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:01:58,076 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-10-31 22:01:58,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:58,077 INFO L85 PathProgramCache]: Analyzing trace with hash -408167560, now seen corresponding path program 1 times [2024-10-31 22:01:58,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:58,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743390176] [2024-10-31 22:01:58,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:58,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:58,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:58,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:58,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:58,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743390176] [2024-10-31 22:01:58,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743390176] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:58,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:58,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:01:58,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014559028] [2024-10-31 22:01:58,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:58,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:01:58,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:58,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:01:58,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:01:58,229 INFO L87 Difference]: Start difference. First operand 1889 states and 2360 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:59,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:59,878 INFO L93 Difference]: Finished difference Result 1915 states and 2413 transitions. [2024-10-31 22:01:59,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:01:59,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-10-31 22:01:59,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:01:59,885 INFO L225 Difference]: With dead ends: 1915 [2024-10-31 22:01:59,887 INFO L226 Difference]: Without dead ends: 1915 [2024-10-31 22:01:59,889 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:01:59,890 INFO L432 NwaCegarLoop]: 1160 mSDtfsCounter, 2005 mSDsluCounter, 1016 mSDsCounter, 0 mSdLazyCounter, 1498 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2016 SdHoareTripleChecker+Valid, 2176 SdHoareTripleChecker+Invalid, 1530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-31 22:01:59,890 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2016 Valid, 2176 Invalid, 1530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1498 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-31 22:01:59,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1915 states. [2024-10-31 22:01:59,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1915 to 1866. [2024-10-31 22:01:59,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1866 states, 1280 states have (on average 1.80703125) internal successors, (2313), 1856 states have internal predecessors, (2313), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:01:59,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1866 states to 1866 states and 2337 transitions. [2024-10-31 22:01:59,941 INFO L78 Accepts]: Start accepts. Automaton has 1866 states and 2337 transitions. Word has length 11 [2024-10-31 22:01:59,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:01:59,942 INFO L471 AbstractCegarLoop]: Abstraction has 1866 states and 2337 transitions. [2024-10-31 22:01:59,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:59,946 INFO L276 IsEmpty]: Start isEmpty. Operand 1866 states and 2337 transitions. [2024-10-31 22:01:59,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-31 22:01:59,946 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:01:59,947 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:01:59,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:01:59,947 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-10-31 22:01:59,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:59,947 INFO L85 PathProgramCache]: Analyzing trace with hash -408167559, now seen corresponding path program 1 times [2024-10-31 22:01:59,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:59,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22649967] [2024-10-31 22:01:59,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:59,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:59,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:00,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:00,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:00,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22649967] [2024-10-31 22:02:00,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22649967] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:00,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:00,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:02:00,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408828558] [2024-10-31 22:02:00,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:00,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:02:00,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:00,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:02:00,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:02:00,026 INFO L87 Difference]: Start difference. First operand 1866 states and 2337 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:00,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:02:00,068 INFO L93 Difference]: Finished difference Result 1791 states and 2234 transitions. [2024-10-31 22:02:00,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:02:00,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-10-31 22:02:00,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:02:00,076 INFO L225 Difference]: With dead ends: 1791 [2024-10-31 22:02:00,076 INFO L226 Difference]: Without dead ends: 1791 [2024-10-31 22:02:00,076 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:02:00,077 INFO L432 NwaCegarLoop]: 1736 mSDtfsCounter, 61 mSDsluCounter, 1683 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 3419 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:02:00,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 3419 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:02:00,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1791 states. [2024-10-31 22:02:00,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1791 to 1791. [2024-10-31 22:02:00,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1791 states, 1217 states have (on average 1.8159408381265407) internal successors, (2210), 1781 states have internal predecessors, (2210), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:02:00,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1791 states to 1791 states and 2234 transitions. [2024-10-31 22:02:00,141 INFO L78 Accepts]: Start accepts. Automaton has 1791 states and 2234 transitions. Word has length 11 [2024-10-31 22:02:00,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:02:00,142 INFO L471 AbstractCegarLoop]: Abstraction has 1791 states and 2234 transitions. [2024-10-31 22:02:00,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:00,142 INFO L276 IsEmpty]: Start isEmpty. Operand 1791 states and 2234 transitions. [2024-10-31 22:02:00,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-31 22:02:00,143 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:02:00,143 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:00,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:02:00,143 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-10-31 22:02:00,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:00,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1406843659, now seen corresponding path program 1 times [2024-10-31 22:02:00,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:00,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233465020] [2024-10-31 22:02:00,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:00,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:00,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:00,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:00,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:00,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233465020] [2024-10-31 22:02:00,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233465020] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:00,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:00,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:02:00,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323759672] [2024-10-31 22:02:00,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:00,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:02:00,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:00,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:02:00,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:02:00,261 INFO L87 Difference]: Start difference. First operand 1791 states and 2234 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:00,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:02:00,373 INFO L93 Difference]: Finished difference Result 1776 states and 2212 transitions. [2024-10-31 22:02:00,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:02:00,373 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2024-10-31 22:02:00,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:02:00,382 INFO L225 Difference]: With dead ends: 1776 [2024-10-31 22:02:00,383 INFO L226 Difference]: Without dead ends: 1776 [2024-10-31 22:02:00,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:02:00,389 INFO L432 NwaCegarLoop]: 1698 mSDtfsCounter, 45 mSDsluCounter, 3373 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 5071 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:02:00,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 5071 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:02:00,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1776 states. [2024-10-31 22:02:00,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1776 to 1776. [2024-10-31 22:02:00,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1776 states, 1209 states have (on average 1.8097601323407775) internal successors, (2188), 1766 states have internal predecessors, (2188), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:02:00,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1776 states to 1776 states and 2212 transitions. [2024-10-31 22:02:00,442 INFO L78 Accepts]: Start accepts. Automaton has 1776 states and 2212 transitions. Word has length 13 [2024-10-31 22:02:00,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:02:00,443 INFO L471 AbstractCegarLoop]: Abstraction has 1776 states and 2212 transitions. [2024-10-31 22:02:00,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:00,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1776 states and 2212 transitions. [2024-10-31 22:02:00,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-10-31 22:02:00,444 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:02:00,444 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:00,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:02:00,445 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-10-31 22:02:00,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:00,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1340702493, now seen corresponding path program 1 times [2024-10-31 22:02:00,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:00,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570585062] [2024-10-31 22:02:00,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:00,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:00,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:00,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:00,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:00,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570585062] [2024-10-31 22:02:00,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570585062] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:00,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:00,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:02:00,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967939084] [2024-10-31 22:02:00,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:00,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:02:00,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:00,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:02:00,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:02:00,718 INFO L87 Difference]: Start difference. First operand 1776 states and 2212 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:02,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:02:02,656 INFO L93 Difference]: Finished difference Result 2296 states and 2712 transitions. [2024-10-31 22:02:02,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:02:02,657 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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 27 [2024-10-31 22:02:02,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:02:02,676 INFO L225 Difference]: With dead ends: 2296 [2024-10-31 22:02:02,677 INFO L226 Difference]: Without dead ends: 2296 [2024-10-31 22:02:02,677 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:02:02,678 INFO L432 NwaCegarLoop]: 1431 mSDtfsCounter, 1222 mSDsluCounter, 1954 mSDsCounter, 0 mSdLazyCounter, 1566 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1227 SdHoareTripleChecker+Valid, 3385 SdHoareTripleChecker+Invalid, 1569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-31 22:02:02,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1227 Valid, 3385 Invalid, 1569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1566 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-31 22:02:02,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2296 states. [2024-10-31 22:02:02,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2296 to 1772. [2024-10-31 22:02:02,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1772 states, 1209 states have (on average 1.8064516129032258) internal successors, (2184), 1762 states have internal predecessors, (2184), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:02:02,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1772 states to 1772 states and 2208 transitions. [2024-10-31 22:02:02,726 INFO L78 Accepts]: Start accepts. Automaton has 1772 states and 2208 transitions. Word has length 27 [2024-10-31 22:02:02,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:02:02,726 INFO L471 AbstractCegarLoop]: Abstraction has 1772 states and 2208 transitions. [2024-10-31 22:02:02,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:02,726 INFO L276 IsEmpty]: Start isEmpty. Operand 1772 states and 2208 transitions. [2024-10-31 22:02:02,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-31 22:02:02,728 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:02:02,728 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:02,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:02:02,728 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-10-31 22:02:02,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:02,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1878905961, now seen corresponding path program 1 times [2024-10-31 22:02:02,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:02,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684281463] [2024-10-31 22:02:02,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:02,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:02,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:02,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:02,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:02,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684281463] [2024-10-31 22:02:02,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684281463] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:02,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:02,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:02:02,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087797809] [2024-10-31 22:02:02,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:02,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:02:02,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:02,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:02:02,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:02:02,868 INFO L87 Difference]: Start difference. First operand 1772 states and 2208 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) [2024-10-31 22:02:02,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:02:02,949 INFO L93 Difference]: Finished difference Result 1766 states and 2198 transitions. [2024-10-31 22:02:02,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:02:02,950 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 [2024-10-31 22:02:02,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:02:02,956 INFO L225 Difference]: With dead ends: 1766 [2024-10-31 22:02:02,956 INFO L226 Difference]: Without dead ends: 1766 [2024-10-31 22:02:02,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:02:02,959 INFO L432 NwaCegarLoop]: 1696 mSDtfsCounter, 21 mSDsluCounter, 3361 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 5057 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:02:02,960 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 5057 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:02:02,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2024-10-31 22:02:02,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 1766. [2024-10-31 22:02:02,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1766 states, 1203 states have (on average 1.8071487946799667) internal successors, (2174), 1756 states have internal predecessors, (2174), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:02:02,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1766 states to 1766 states and 2198 transitions. [2024-10-31 22:02:02,997 INFO L78 Accepts]: Start accepts. Automaton has 1766 states and 2198 transitions. Word has length 61 [2024-10-31 22:02:02,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:02:02,997 INFO L471 AbstractCegarLoop]: Abstraction has 1766 states and 2198 transitions. [2024-10-31 22:02:02,998 INFO L472 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) [2024-10-31 22:02:03,001 INFO L276 IsEmpty]: Start isEmpty. Operand 1766 states and 2198 transitions. [2024-10-31 22:02:03,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-31 22:02:03,003 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:02:03,003 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:03,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:02:03,003 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-10-31 22:02:03,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:03,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1294710755, now seen corresponding path program 1 times [2024-10-31 22:02:03,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:03,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15476428] [2024-10-31 22:02:03,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:03,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:03,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:03,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:03,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:03,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15476428] [2024-10-31 22:02:03,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15476428] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:03,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:03,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:02:03,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504879859] [2024-10-31 22:02:03,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:03,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:02:03,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:03,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:02:03,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:02:03,178 INFO L87 Difference]: Start difference. First operand 1766 states and 2198 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:03,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:02:03,235 INFO L93 Difference]: Finished difference Result 1858 states and 2317 transitions. [2024-10-31 22:02:03,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:02:03,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-10-31 22:02:03,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:02:03,243 INFO L225 Difference]: With dead ends: 1858 [2024-10-31 22:02:03,243 INFO L226 Difference]: Without dead ends: 1858 [2024-10-31 22:02:03,244 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:02:03,244 INFO L432 NwaCegarLoop]: 1711 mSDtfsCounter, 54 mSDsluCounter, 1684 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 3395 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:02:03,245 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 3395 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:02:03,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1858 states. [2024-10-31 22:02:03,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1858 to 1858. [2024-10-31 22:02:03,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1858 states, 1295 states have (on average 1.7706563706563707) internal successors, (2293), 1848 states have internal predecessors, (2293), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:02:03,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1858 states to 1858 states and 2317 transitions. [2024-10-31 22:02:03,286 INFO L78 Accepts]: Start accepts. Automaton has 1858 states and 2317 transitions. Word has length 69 [2024-10-31 22:02:03,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:02:03,288 INFO L471 AbstractCegarLoop]: Abstraction has 1858 states and 2317 transitions. [2024-10-31 22:02:03,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:03,288 INFO L276 IsEmpty]: Start isEmpty. Operand 1858 states and 2317 transitions. [2024-10-31 22:02:03,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-10-31 22:02:03,290 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:02:03,290 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:03,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:02:03,290 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-10-31 22:02:03,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:03,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1814650898, now seen corresponding path program 1 times [2024-10-31 22:02:03,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:03,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390042505] [2024-10-31 22:02:03,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:03,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:03,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:04,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:04,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:04,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390042505] [2024-10-31 22:02:04,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390042505] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:04,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:04,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:02:04,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820214187] [2024-10-31 22:02:04,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:04,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:02:04,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:04,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:02:04,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:02:04,073 INFO L87 Difference]: Start difference. First operand 1858 states and 2317 transitions. Second operand has 6 states, 5 states have (on average 14.4) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:05,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:02:05,784 INFO L93 Difference]: Finished difference Result 1774 states and 2233 transitions. [2024-10-31 22:02:05,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:02:05,784 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.4) internal successors, (72), 6 states have internal predecessors, (72), 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 72 [2024-10-31 22:02:05,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:02:05,790 INFO L225 Difference]: With dead ends: 1774 [2024-10-31 22:02:05,790 INFO L226 Difference]: Without dead ends: 1774 [2024-10-31 22:02:05,791 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:02:05,791 INFO L432 NwaCegarLoop]: 826 mSDtfsCounter, 1535 mSDsluCounter, 794 mSDsCounter, 0 mSdLazyCounter, 1668 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1546 SdHoareTripleChecker+Valid, 1620 SdHoareTripleChecker+Invalid, 1761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-31 22:02:05,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1546 Valid, 1620 Invalid, 1761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1668 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-31 22:02:05,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1774 states. [2024-10-31 22:02:05,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1774 to 1501. [2024-10-31 22:02:05,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1501 states, 1022 states have (on average 1.687866927592955) internal successors, (1725), 1491 states have internal predecessors, (1725), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:02:05,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1501 states to 1501 states and 1749 transitions. [2024-10-31 22:02:05,823 INFO L78 Accepts]: Start accepts. Automaton has 1501 states and 1749 transitions. Word has length 72 [2024-10-31 22:02:05,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:02:05,823 INFO L471 AbstractCegarLoop]: Abstraction has 1501 states and 1749 transitions. [2024-10-31 22:02:05,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.4) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:05,824 INFO L276 IsEmpty]: Start isEmpty. Operand 1501 states and 1749 transitions. [2024-10-31 22:02:05,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-31 22:02:05,825 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:02:05,825 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:05,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 22:02:05,825 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-10-31 22:02:05,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:05,826 INFO L85 PathProgramCache]: Analyzing trace with hash -702590666, now seen corresponding path program 1 times [2024-10-31 22:02:05,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:05,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119023103] [2024-10-31 22:02:05,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:05,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:05,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:06,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:06,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:06,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119023103] [2024-10-31 22:02:06,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119023103] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:06,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:06,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:02:06,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926876768] [2024-10-31 22:02:06,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:06,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:02:06,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:06,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:02:06,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:02:06,233 INFO L87 Difference]: Start difference. First operand 1501 states and 1749 transitions. Second operand has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:08,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:02:08,100 INFO L93 Difference]: Finished difference Result 1500 states and 1748 transitions. [2024-10-31 22:02:08,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:02:08,101 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 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 77 [2024-10-31 22:02:08,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:02:08,111 INFO L225 Difference]: With dead ends: 1500 [2024-10-31 22:02:08,111 INFO L226 Difference]: Without dead ends: 1500 [2024-10-31 22:02:08,111 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:02:08,113 INFO L432 NwaCegarLoop]: 1623 mSDtfsCounter, 2 mSDsluCounter, 3155 mSDsCounter, 0 mSdLazyCounter, 1721 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4778 SdHoareTripleChecker+Invalid, 1722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-31 22:02:08,113 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4778 Invalid, 1722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1721 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-31 22:02:08,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1500 states. [2024-10-31 22:02:08,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1500 to 1500. [2024-10-31 22:02:08,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1500 states, 1022 states have (on average 1.6868884540117417) internal successors, (1724), 1490 states have internal predecessors, (1724), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:02:08,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 1748 transitions. [2024-10-31 22:02:08,142 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 1748 transitions. Word has length 77 [2024-10-31 22:02:08,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:02:08,143 INFO L471 AbstractCegarLoop]: Abstraction has 1500 states and 1748 transitions. [2024-10-31 22:02:08,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:08,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 1748 transitions. [2024-10-31 22:02:08,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-31 22:02:08,145 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:02:08,146 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:08,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-31 22:02:08,146 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr67REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-10-31 22:02:08,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:08,147 INFO L85 PathProgramCache]: Analyzing trace with hash -702590665, now seen corresponding path program 1 times [2024-10-31 22:02:08,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:08,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31510501] [2024-10-31 22:02:08,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:08,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:08,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:08,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:08,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:08,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31510501] [2024-10-31 22:02:08,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31510501] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:08,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:08,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:02:08,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811435710] [2024-10-31 22:02:08,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:08,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:02:08,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:08,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:02:08,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:02:08,758 INFO L87 Difference]: Start difference. First operand 1500 states and 1748 transitions. Second operand has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:10,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:02:10,374 INFO L93 Difference]: Finished difference Result 1499 states and 1747 transitions. [2024-10-31 22:02:10,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:02:10,374 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 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 77 [2024-10-31 22:02:10,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:02:10,379 INFO L225 Difference]: With dead ends: 1499 [2024-10-31 22:02:10,379 INFO L226 Difference]: Without dead ends: 1499 [2024-10-31 22:02:10,379 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:02:10,380 INFO L432 NwaCegarLoop]: 1623 mSDtfsCounter, 1 mSDsluCounter, 3177 mSDsCounter, 0 mSdLazyCounter, 1696 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4800 SdHoareTripleChecker+Invalid, 1697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-31 22:02:10,380 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4800 Invalid, 1697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1696 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-31 22:02:10,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1499 states. [2024-10-31 22:02:10,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1499 to 1499. [2024-10-31 22:02:10,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1499 states, 1021 states have (on average 1.6875612144955925) internal successors, (1723), 1489 states have internal predecessors, (1723), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:02:10,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1499 states to 1499 states and 1747 transitions. [2024-10-31 22:02:10,405 INFO L78 Accepts]: Start accepts. Automaton has 1499 states and 1747 transitions. Word has length 77 [2024-10-31 22:02:10,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:02:10,406 INFO L471 AbstractCegarLoop]: Abstraction has 1499 states and 1747 transitions. [2024-10-31 22:02:10,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:10,406 INFO L276 IsEmpty]: Start isEmpty. Operand 1499 states and 1747 transitions. [2024-10-31 22:02:10,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-31 22:02:10,407 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:02:10,407 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:10,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-31 22:02:10,407 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-10-31 22:02:10,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:10,408 INFO L85 PathProgramCache]: Analyzing trace with hash 545873214, now seen corresponding path program 1 times [2024-10-31 22:02:10,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:10,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176842065] [2024-10-31 22:02:10,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:10,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:10,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:11,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-31 22:02:11,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:11,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:11,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:11,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176842065] [2024-10-31 22:02:11,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176842065] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:11,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:11,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:02:11,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120255542] [2024-10-31 22:02:11,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:11,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:02:11,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:11,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:02:11,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:02:11,322 INFO L87 Difference]: Start difference. First operand 1499 states and 1747 transitions. Second operand has 7 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 22:02:13,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:02:13,465 INFO L93 Difference]: Finished difference Result 1506 states and 1760 transitions. [2024-10-31 22:02:13,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:02:13,466 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2024-10-31 22:02:13,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:02:13,475 INFO L225 Difference]: With dead ends: 1506 [2024-10-31 22:02:13,476 INFO L226 Difference]: Without dead ends: 1506 [2024-10-31 22:02:13,477 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:02:13,477 INFO L432 NwaCegarLoop]: 1611 mSDtfsCounter, 13 mSDsluCounter, 5816 mSDsCounter, 0 mSdLazyCounter, 2281 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 7427 SdHoareTripleChecker+Invalid, 2292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:02:13,477 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 7427 Invalid, 2292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2281 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-31 22:02:13,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1506 states. [2024-10-31 22:02:13,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1506 to 1505. [2024-10-31 22:02:13,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 1026 states have (on average 1.6861598440545809) internal successors, (1730), 1494 states have internal predecessors, (1730), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (17), 8 states have call predecessors, (17), 11 states have call successors, (17) [2024-10-31 22:02:13,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 1760 transitions. [2024-10-31 22:02:13,509 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 1760 transitions. Word has length 85 [2024-10-31 22:02:13,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:02:13,509 INFO L471 AbstractCegarLoop]: Abstraction has 1505 states and 1760 transitions. [2024-10-31 22:02:13,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 22:02:13,510 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 1760 transitions. [2024-10-31 22:02:13,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-31 22:02:13,510 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:02:13,511 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:13,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-31 22:02:13,511 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-10-31 22:02:13,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:13,511 INFO L85 PathProgramCache]: Analyzing trace with hash 545873213, now seen corresponding path program 1 times [2024-10-31 22:02:13,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:13,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169198486] [2024-10-31 22:02:13,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:13,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:13,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:13,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-31 22:02:13,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:13,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:13,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:13,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169198486] [2024-10-31 22:02:13,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169198486] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:13,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:13,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:02:13,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216914447] [2024-10-31 22:02:13,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:13,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:02:13,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:13,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:02:13,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:02:13,831 INFO L87 Difference]: Start difference. First operand 1505 states and 1760 transitions. Second operand has 7 states, 5 states have (on average 16.6) internal successors, (83), 6 states have internal predecessors, (83), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)