./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test10-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test10-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1c32e831c11e67575bf9fc4420a056c0795572e7218bcd99a0067a1a2caea6f7 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 13:03:25,536 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 13:03:25,607 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-11-12 13:03:25,614 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 13:03:25,615 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 13:03:25,642 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 13:03:25,643 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 13:03:25,643 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 13:03:25,644 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 13:03:25,644 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 13:03:25,645 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 13:03:25,645 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 13:03:25,646 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 13:03:25,646 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 13:03:25,648 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 13:03:25,649 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 13:03:25,650 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 13:03:25,651 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 13:03:25,651 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 13:03:25,651 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 13:03:25,651 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 13:03:25,652 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 13:03:25,653 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-12 13:03:25,653 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-12 13:03:25,653 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 13:03:25,653 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 13:03:25,654 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-12 13:03:25,654 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 13:03:25,654 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 13:03:25,654 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 13:03:25,654 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 13:03:25,655 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 13:03:25,655 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 13:03:25,655 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 13:03:25,655 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 13:03:25,656 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 13:03:25,656 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 13:03:25,656 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 13:03:25,656 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 13:03:25,656 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 13:03:25,657 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 13:03:25,659 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 13:03:25,659 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 13:03:25,659 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 13:03:25,659 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 13:03:25,660 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c32e831c11e67575bf9fc4420a056c0795572e7218bcd99a0067a1a2caea6f7 [2024-11-12 13:03:25,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 13:03:26,005 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 13:03:26,008 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 13:03:26,009 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 13:03:26,010 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 13:03:26,011 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test10-1.i [2024-11-12 13:03:27,655 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 13:03:28,017 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 13:03:28,017 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test10-1.i [2024-11-12 13:03:28,039 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25340b72b/de80256c8ba04be98c8fec8445f03031/FLAGe83f6f74f [2024-11-12 13:03:28,055 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25340b72b/de80256c8ba04be98c8fec8445f03031 [2024-11-12 13:03:28,058 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 13:03:28,059 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 13:03:28,060 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 13:03:28,060 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 13:03:28,067 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 13:03:28,068 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:03:28" (1/1) ... [2024-11-12 13:03:28,069 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@941caf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:28, skipping insertion in model container [2024-11-12 13:03:28,069 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:03:28" (1/1) ... [2024-11-12 13:03:28,129 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 13:03:28,700 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 13:03:28,736 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 13:03:28,741 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 13:03:28,747 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 13:03:28,756 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 13:03:28,810 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 13:03:28,811 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 13:03:28,818 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 13:03:28,823 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 13:03:28,861 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 13:03:28,862 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 13:03:28,864 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 13:03:28,864 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 13:03:28,876 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 13:03:28,877 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 13:03:28,882 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 13:03:28,941 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 13:03:28,988 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 13:03:28,989 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 13:03:28,990 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 13:03:28,991 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 13:03:29,077 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 13:03:29,081 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 13:03:29,088 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 13:03:29,089 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 13:03:29,108 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 13:03:29,119 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 13:03:29,258 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 13:03:29,298 INFO L204 MainTranslator]: Completed translation [2024-11-12 13:03:29,299 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:29 WrapperNode [2024-11-12 13:03:29,300 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 13:03:29,301 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 13:03:29,302 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 13:03:29,302 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 13:03:29,309 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:29" (1/1) ... [2024-11-12 13:03:29,369 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:29" (1/1) ... [2024-11-12 13:03:29,473 INFO L138 Inliner]: procedures = 177, calls = 507, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3415 [2024-11-12 13:03:29,474 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 13:03:29,475 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 13:03:29,475 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 13:03:29,475 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 13:03:29,490 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:29" (1/1) ... [2024-11-12 13:03:29,494 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:29" (1/1) ... [2024-11-12 13:03:29,518 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:29" (1/1) ... [2024-11-12 13:03:29,689 INFO L175 MemorySlicer]: Split 480 memory accesses to 3 slices as follows [2, 106, 372]. 78 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 86 writes are split as follows [0, 4, 82]. [2024-11-12 13:03:29,690 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:29" (1/1) ... [2024-11-12 13:03:29,690 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:29" (1/1) ... [2024-11-12 13:03:29,760 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:29" (1/1) ... [2024-11-12 13:03:29,842 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:29" (1/1) ... [2024-11-12 13:03:29,865 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:29" (1/1) ... [2024-11-12 13:03:29,882 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:29" (1/1) ... [2024-11-12 13:03:29,909 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 13:03:29,911 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 13:03:29,911 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 13:03:29,911 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 13:03:29,912 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:29" (1/1) ... [2024-11-12 13:03:29,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 13:03:29,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 13:03:29,974 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 13:03:29,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 13:03:30,071 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int [2024-11-12 13:03:30,075 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int [2024-11-12 13:03:30,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-12 13:03:30,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-12 13:03:30,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-12 13:03:30,076 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-12 13:03:30,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-12 13:03:30,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-12 13:03:30,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-12 13:03:30,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-12 13:03:30,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-12 13:03:30,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-12 13:03:30,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-12 13:03:30,076 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-12 13:03:30,077 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-12 13:03:30,077 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-12 13:03:30,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-12 13:03:30,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 13:03:30,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-12 13:03:30,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-12 13:03:30,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-12 13:03:30,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-12 13:03:30,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-12 13:03:30,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-12 13:03:30,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-12 13:03:30,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 13:03:30,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 13:03:30,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-12 13:03:30,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-12 13:03:30,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 13:03:30,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 13:03:30,460 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 13:03:30,467 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 13:03:33,308 INFO L? ?]: Removed 782 outVars from TransFormulas that were not future-live. [2024-11-12 13:03:33,308 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 13:03:33,358 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 13:03:33,360 INFO L316 CfgBuilder]: Removed 151 assume(true) statements. [2024-11-12 13:03:33,360 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:03:33 BoogieIcfgContainer [2024-11-12 13:03:33,360 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 13:03:33,363 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 13:03:33,363 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 13:03:33,367 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 13:03:33,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 01:03:28" (1/3) ... [2024-11-12 13:03:33,368 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d1c459d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:03:33, skipping insertion in model container [2024-11-12 13:03:33,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:29" (2/3) ... [2024-11-12 13:03:33,370 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d1c459d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:03:33, skipping insertion in model container [2024-11-12 13:03:33,371 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:03:33" (3/3) ... [2024-11-12 13:03:33,373 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test10-1.i [2024-11-12 13:03:33,392 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 13:03:33,392 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-12 13:03:33,478 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 13:03:33,486 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;@78156608, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 13:03:33,487 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-12 13:03:33,500 INFO L276 IsEmpty]: Start isEmpty. Operand has 1033 states, 1013 states have (on average 1.6288252714708786) internal successors, (1650), 1019 states have internal predecessors, (1650), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-12 13:03:33,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-12 13:03:33,512 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:03:33,513 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 13:03:33,513 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-12 13:03:33,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:03:33,522 INFO L85 PathProgramCache]: Analyzing trace with hash 605178484, now seen corresponding path program 1 times [2024-11-12 13:03:33,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:03:33,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681904784] [2024-11-12 13:03:33,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:03:33,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:03:33,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:03:33,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:03:33,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:03:33,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681904784] [2024-11-12 13:03:33,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681904784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:03:33,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:03:33,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 13:03:33,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481593691] [2024-11-12 13:03:33,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:03:33,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-12 13:03:33,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:03:33,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-12 13:03:33,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 13:03:33,782 INFO L87 Difference]: Start difference. First operand has 1033 states, 1013 states have (on average 1.6288252714708786) internal successors, (1650), 1019 states have internal predecessors, (1650), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:03:33,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:03:33,856 INFO L93 Difference]: Finished difference Result 1032 states and 1517 transitions. [2024-11-12 13:03:33,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 13:03:33,858 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-12 13:03:33,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:03:33,879 INFO L225 Difference]: With dead ends: 1032 [2024-11-12 13:03:33,880 INFO L226 Difference]: Without dead ends: 1030 [2024-11-12 13:03:33,882 INFO L434 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 [2024-11-12 13:03:33,885 INFO L435 NwaCegarLoop]: 1517 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, 1517 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 [2024-11-12 13:03:33,886 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1517 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 13:03:33,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2024-11-12 13:03:33,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 1030. [2024-11-12 13:03:33,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1030 states, 1011 states have (on average 1.4708209693372898) internal successors, (1487), 1016 states have internal predecessors, (1487), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-12 13:03:33,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1030 states to 1030 states and 1515 transitions. [2024-11-12 13:03:33,973 INFO L78 Accepts]: Start accepts. Automaton has 1030 states and 1515 transitions. Word has length 14 [2024-11-12 13:03:33,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:03:33,973 INFO L471 AbstractCegarLoop]: Abstraction has 1030 states and 1515 transitions. [2024-11-12 13:03:33,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:03:33,974 INFO L276 IsEmpty]: Start isEmpty. Operand 1030 states and 1515 transitions. [2024-11-12 13:03:33,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-12 13:03:33,981 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:03:33,981 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 13:03:33,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 13:03:33,982 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-12 13:03:33,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:03:33,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1600049570, now seen corresponding path program 1 times [2024-11-12 13:03:33,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:03:33,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562544007] [2024-11-12 13:03:33,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:03:33,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:03:34,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:03:34,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:03:34,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:03:34,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562544007] [2024-11-12 13:03:34,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562544007] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:03:34,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:03:34,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 13:03:34,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355942222] [2024-11-12 13:03:34,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:03:34,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 13:03:34,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:03:34,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 13:03:34,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 13:03:34,666 INFO L87 Difference]: Start difference. First operand 1030 states and 1515 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:03:35,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:03:35,088 INFO L93 Difference]: Finished difference Result 1416 states and 2076 transitions. [2024-11-12 13:03:35,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 13:03:35,092 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-12 13:03:35,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:03:35,103 INFO L225 Difference]: With dead ends: 1416 [2024-11-12 13:03:35,107 INFO L226 Difference]: Without dead ends: 1416 [2024-11-12 13:03:35,107 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-12 13:03:35,109 INFO L435 NwaCegarLoop]: 1597 mSDtfsCounter, 548 mSDsluCounter, 3041 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 4638 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 13:03:35,113 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [554 Valid, 4638 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 13:03:35,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1416 states. [2024-11-12 13:03:35,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1416 to 1032. [2024-11-12 13:03:35,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1032 states, 1013 states have (on average 1.4698914116485686) internal successors, (1489), 1018 states have internal predecessors, (1489), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-12 13:03:35,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1032 states to 1032 states and 1517 transitions. [2024-11-12 13:03:35,194 INFO L78 Accepts]: Start accepts. Automaton has 1032 states and 1517 transitions. Word has length 69 [2024-11-12 13:03:35,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:03:35,194 INFO L471 AbstractCegarLoop]: Abstraction has 1032 states and 1517 transitions. [2024-11-12 13:03:35,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:03:35,195 INFO L276 IsEmpty]: Start isEmpty. Operand 1032 states and 1517 transitions. [2024-11-12 13:03:35,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-12 13:03:35,207 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:03:35,208 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 13:03:35,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 13:03:35,208 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-12 13:03:35,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:03:35,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1924069969, now seen corresponding path program 1 times [2024-11-12 13:03:35,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:03:35,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010636287] [2024-11-12 13:03:35,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:03:35,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:03:35,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:03:36,157 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:03:36,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:03:36,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010636287] [2024-11-12 13:03:36,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010636287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:03:36,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:03:36,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 13:03:36,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701546848] [2024-11-12 13:03:36,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:03:36,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 13:03:36,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:03:36,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 13:03:36,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-12 13:03:36,163 INFO L87 Difference]: Start difference. First operand 1032 states and 1517 transitions. Second operand has 6 states, 6 states have (on average 24.0) internal successors, (144), 6 states have internal predecessors, (144), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:03:36,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:03:36,416 INFO L93 Difference]: Finished difference Result 1416 states and 2075 transitions. [2024-11-12 13:03:36,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 13:03:36,416 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 6 states have internal predecessors, (144), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 146 [2024-11-12 13:03:36,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:03:36,422 INFO L225 Difference]: With dead ends: 1416 [2024-11-12 13:03:36,423 INFO L226 Difference]: Without dead ends: 1416 [2024-11-12 13:03:36,423 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-12 13:03:36,424 INFO L435 NwaCegarLoop]: 1553 mSDtfsCounter, 1090 mSDsluCounter, 3540 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 5093 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 13:03:36,425 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1096 Valid, 5093 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 13:03:36,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1416 states. [2024-11-12 13:03:36,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1416 to 1035. [2024-11-12 13:03:36,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1035 states, 1016 states have (on average 1.468503937007874) internal successors, (1492), 1021 states have internal predecessors, (1492), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-12 13:03:36,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1520 transitions. [2024-11-12 13:03:36,463 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1520 transitions. Word has length 146 [2024-11-12 13:03:36,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:03:36,464 INFO L471 AbstractCegarLoop]: Abstraction has 1035 states and 1520 transitions. [2024-11-12 13:03:36,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 6 states have internal predecessors, (144), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:03:36,464 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1520 transitions. [2024-11-12 13:03:36,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-12 13:03:36,468 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:03:36,468 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 13:03:36,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 13:03:36,469 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-12 13:03:36,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:03:36,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1149594207, now seen corresponding path program 1 times [2024-11-12 13:03:36,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:03:36,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370445624] [2024-11-12 13:03:36,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:03:36,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:03:36,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:03:36,956 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:03:36,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:03:36,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370445624] [2024-11-12 13:03:36,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370445624] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:03:36,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:03:36,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 13:03:36,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650674251] [2024-11-12 13:03:36,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:03:36,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 13:03:36,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:03:36,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 13:03:36,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 13:03:36,964 INFO L87 Difference]: Start difference. First operand 1035 states and 1520 transitions. Second operand has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:03:37,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:03:37,072 INFO L93 Difference]: Finished difference Result 993 states and 1443 transitions. [2024-11-12 13:03:37,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 13:03:37,073 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 217 [2024-11-12 13:03:37,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:03:37,078 INFO L225 Difference]: With dead ends: 993 [2024-11-12 13:03:37,079 INFO L226 Difference]: Without dead ends: 993 [2024-11-12 13:03:37,079 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-12 13:03:37,084 INFO L435 NwaCegarLoop]: 1413 mSDtfsCounter, 30 mSDsluCounter, 2807 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 4220 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 13:03:37,085 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 4220 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 13:03:37,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2024-11-12 13:03:37,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 993. [2024-11-12 13:03:37,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 993 states, 974 states have (on average 1.4527720739219712) internal successors, (1415), 979 states have internal predecessors, (1415), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-12 13:03:37,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1443 transitions. [2024-11-12 13:03:37,115 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1443 transitions. Word has length 217 [2024-11-12 13:03:37,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:03:37,115 INFO L471 AbstractCegarLoop]: Abstraction has 993 states and 1443 transitions. [2024-11-12 13:03:37,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:03:37,116 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1443 transitions. [2024-11-12 13:03:37,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-12 13:03:37,119 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:03:37,120 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 13:03:37,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 13:03:37,121 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-12 13:03:37,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:03:37,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1016052691, now seen corresponding path program 1 times [2024-11-12 13:03:37,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:03:37,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199035701] [2024-11-12 13:03:37,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:03:37,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:03:37,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:03:37,384 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:03:37,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:03:37,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199035701] [2024-11-12 13:03:37,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199035701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:03:37,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:03:37,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 13:03:37,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400184622] [2024-11-12 13:03:37,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:03:37,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 13:03:37,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:03:37,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 13:03:37,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 13:03:37,388 INFO L87 Difference]: Start difference. First operand 993 states and 1443 transitions. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:03:37,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:03:37,480 INFO L93 Difference]: Finished difference Result 1527 states and 2227 transitions. [2024-11-12 13:03:37,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 13:03:37,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 217 [2024-11-12 13:03:37,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:03:37,488 INFO L225 Difference]: With dead ends: 1527 [2024-11-12 13:03:37,488 INFO L226 Difference]: Without dead ends: 1527 [2024-11-12 13:03:37,488 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 13:03:37,489 INFO L435 NwaCegarLoop]: 1430 mSDtfsCounter, 718 mSDsluCounter, 1412 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 722 SdHoareTripleChecker+Valid, 2842 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 13:03:37,490 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [722 Valid, 2842 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 13:03:37,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1527 states. [2024-11-12 13:03:37,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1527 to 1365. [2024-11-12 13:03:37,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1365 states, 1344 states have (on average 1.4561011904761905) internal successors, (1957), 1349 states have internal predecessors, (1957), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-12 13:03:37,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1365 states to 1365 states and 1989 transitions. [2024-11-12 13:03:37,526 INFO L78 Accepts]: Start accepts. Automaton has 1365 states and 1989 transitions. Word has length 217 [2024-11-12 13:03:37,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:03:37,527 INFO L471 AbstractCegarLoop]: Abstraction has 1365 states and 1989 transitions. [2024-11-12 13:03:37,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:03:37,528 INFO L276 IsEmpty]: Start isEmpty. Operand 1365 states and 1989 transitions. [2024-11-12 13:03:37,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-12 13:03:37,531 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:03:37,531 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 13:03:37,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 13:03:37,532 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-12 13:03:37,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:03:37,532 INFO L85 PathProgramCache]: Analyzing trace with hash 31952922, now seen corresponding path program 1 times [2024-11-12 13:03:37,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:03:37,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23977004] [2024-11-12 13:03:37,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:03:37,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:03:37,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:03:38,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-12 13:03:38,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:03:38,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-12 13:03:38,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:03:38,095 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-12 13:03:38,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:03:38,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23977004] [2024-11-12 13:03:38,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23977004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:03:38,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:03:38,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 13:03:38,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106655116] [2024-11-12 13:03:38,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:03:38,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 13:03:38,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:03:38,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 13:03:38,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 13:03:38,102 INFO L87 Difference]: Start difference. First operand 1365 states and 1989 transitions. Second operand has 5 states, 5 states have (on average 44.6) internal successors, (223), 4 states have internal predecessors, (223), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-12 13:03:38,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:03:38,623 INFO L93 Difference]: Finished difference Result 1326 states and 1921 transitions. [2024-11-12 13:03:38,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 13:03:38,624 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.6) internal successors, (223), 4 states have internal predecessors, (223), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 232 [2024-11-12 13:03:38,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:03:38,629 INFO L225 Difference]: With dead ends: 1326 [2024-11-12 13:03:38,630 INFO L226 Difference]: Without dead ends: 1326 [2024-11-12 13:03:38,630 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 13:03:38,631 INFO L435 NwaCegarLoop]: 1304 mSDtfsCounter, 54 mSDsluCounter, 3757 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 5061 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-12 13:03:38,631 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 5061 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-12 13:03:38,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2024-11-12 13:03:38,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 1323. [2024-11-12 13:03:38,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1323 states, 1302 states have (on average 1.443932411674347) internal successors, (1880), 1307 states have internal predecessors, (1880), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-12 13:03:38,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1323 states to 1323 states and 1912 transitions. [2024-11-12 13:03:38,660 INFO L78 Accepts]: Start accepts. Automaton has 1323 states and 1912 transitions. Word has length 232 [2024-11-12 13:03:38,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:03:38,661 INFO L471 AbstractCegarLoop]: Abstraction has 1323 states and 1912 transitions. [2024-11-12 13:03:38,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.6) internal successors, (223), 4 states have internal predecessors, (223), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-12 13:03:38,661 INFO L276 IsEmpty]: Start isEmpty. Operand 1323 states and 1912 transitions. [2024-11-12 13:03:38,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-12 13:03:38,664 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:03:38,664 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 13:03:38,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 13:03:38,665 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-12 13:03:38,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:03:38,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1266838926, now seen corresponding path program 1 times [2024-11-12 13:03:38,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:03:38,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059020225] [2024-11-12 13:03:38,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:03:38,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:03:38,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:03:39,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-12 13:03:39,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:03:39,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-12 13:03:39,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:03:39,023 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-12 13:03:39,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:03:39,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059020225] [2024-11-12 13:03:39,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059020225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:03:39,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:03:39,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 13:03:39,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075786394] [2024-11-12 13:03:39,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:03:39,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 13:03:39,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:03:39,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 13:03:39,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 13:03:39,027 INFO L87 Difference]: Start difference. First operand 1323 states and 1912 transitions. Second operand has 4 states, 4 states have (on average 55.75) internal successors, (223), 3 states have internal predecessors, (223), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-12 13:03:40,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:03:40,459 INFO L93 Difference]: Finished difference Result 1326 states and 1918 transitions. [2024-11-12 13:03:40,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 13:03:40,460 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.75) internal successors, (223), 3 states have internal predecessors, (223), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 232 [2024-11-12 13:03:40,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:03:40,469 INFO L225 Difference]: With dead ends: 1326 [2024-11-12 13:03:40,469 INFO L226 Difference]: Without dead ends: 1326 [2024-11-12 13:03:40,470 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 13:03:40,470 INFO L435 NwaCegarLoop]: 1317 mSDtfsCounter, 25 mSDsluCounter, 2483 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 3800 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-12 13:03:40,471 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 3800 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-12 13:03:40,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2024-11-12 13:03:40,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 1323. [2024-11-12 13:03:40,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1323 states, 1302 states have (on average 1.4416282642089093) internal successors, (1877), 1307 states have internal predecessors, (1877), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-12 13:03:40,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1323 states to 1323 states and 1909 transitions. [2024-11-12 13:03:40,508 INFO L78 Accepts]: Start accepts. Automaton has 1323 states and 1909 transitions. Word has length 232 [2024-11-12 13:03:40,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:03:40,509 INFO L471 AbstractCegarLoop]: Abstraction has 1323 states and 1909 transitions. [2024-11-12 13:03:40,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.75) internal successors, (223), 3 states have internal predecessors, (223), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-12 13:03:40,510 INFO L276 IsEmpty]: Start isEmpty. Operand 1323 states and 1909 transitions. [2024-11-12 13:03:40,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-12 13:03:40,513 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:03:40,513 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 13:03:40,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 13:03:40,514 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-12 13:03:40,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:03:40,514 INFO L85 PathProgramCache]: Analyzing trace with hash -735047344, now seen corresponding path program 1 times [2024-11-12 13:03:40,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:03:40,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97780997] [2024-11-12 13:03:40,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:03:40,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:03:40,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:03:40,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-12 13:03:40,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:03:40,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-12 13:03:40,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:03:40,921 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-12 13:03:40,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:03:40,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97780997] [2024-11-12 13:03:40,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97780997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:03:40,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:03:40,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 13:03:40,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017810226] [2024-11-12 13:03:40,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:03:40,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 13:03:40,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:03:40,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 13:03:40,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 13:03:40,925 INFO L87 Difference]: Start difference. First operand 1323 states and 1909 transitions. Second operand has 4 states, 4 states have (on average 55.75) internal successors, (223), 3 states have internal predecessors, (223), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-12 13:03:41,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:03:41,427 INFO L93 Difference]: Finished difference Result 1900 states and 2753 transitions. [2024-11-12 13:03:41,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 13:03:41,428 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.75) internal successors, (223), 3 states have internal predecessors, (223), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 232 [2024-11-12 13:03:41,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:03:41,436 INFO L225 Difference]: With dead ends: 1900 [2024-11-12 13:03:41,436 INFO L226 Difference]: Without dead ends: 1900 [2024-11-12 13:03:41,437 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 13:03:41,437 INFO L435 NwaCegarLoop]: 1321 mSDtfsCounter, 623 mSDsluCounter, 2493 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 3814 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-12 13:03:41,438 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 3814 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-12 13:03:41,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1900 states. [2024-11-12 13:03:41,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1900 to 1889. [2024-11-12 13:03:41,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1889 states, 1862 states have (on average 1.4441460794844254) internal successors, (2689), 1867 states have internal predecessors, (2689), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 19 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-12 13:03:41,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1889 states to 1889 states and 2733 transitions. [2024-11-12 13:03:41,483 INFO L78 Accepts]: Start accepts. Automaton has 1889 states and 2733 transitions. Word has length 232 [2024-11-12 13:03:41,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:03:41,485 INFO L471 AbstractCegarLoop]: Abstraction has 1889 states and 2733 transitions. [2024-11-12 13:03:41,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.75) internal successors, (223), 3 states have internal predecessors, (223), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-12 13:03:41,486 INFO L276 IsEmpty]: Start isEmpty. Operand 1889 states and 2733 transitions. [2024-11-12 13:03:41,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2024-11-12 13:03:41,489 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:03:41,489 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 13:03:41,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 13:03:41,490 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-12 13:03:41,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:03:41,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1163102310, now seen corresponding path program 1 times [2024-11-12 13:03:41,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:03:41,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876031003] [2024-11-12 13:03:41,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:03:41,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:03:41,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:03:41,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-12 13:03:41,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:03:41,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-12 13:03:42,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:03:42,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-12 13:03:42,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:03:42,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-12 13:03:42,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:03:42,019 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-12 13:03:42,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:03:42,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876031003] [2024-11-12 13:03:42,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876031003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:03:42,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:03:42,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 13:03:42,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032122965] [2024-11-12 13:03:42,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:03:42,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 13:03:42,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:03:42,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 13:03:42,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 13:03:42,025 INFO L87 Difference]: Start difference. First operand 1889 states and 2733 transitions. Second operand has 6 states, 6 states have (on average 38.0) internal successors, (228), 5 states have internal predecessors, (228), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-12 13:03:43,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:03:43,017 INFO L93 Difference]: Finished difference Result 2433 states and 3535 transitions. [2024-11-12 13:03:43,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 13:03:43,017 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 38.0) internal successors, (228), 5 states have internal predecessors, (228), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 247 [2024-11-12 13:03:43,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:03:43,028 INFO L225 Difference]: With dead ends: 2433 [2024-11-12 13:03:43,028 INFO L226 Difference]: Without dead ends: 2433 [2024-11-12 13:03:43,028 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-12 13:03:43,030 INFO L435 NwaCegarLoop]: 1392 mSDtfsCounter, 4545 mSDsluCounter, 2683 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4557 SdHoareTripleChecker+Valid, 4075 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-12 13:03:43,030 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4557 Valid, 4075 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-12 13:03:43,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2433 states. [2024-11-12 13:03:43,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2433 to 1460. [2024-11-12 13:03:43,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1460 states, 1438 states have (on average 1.4283727399165507) internal successors, (2054), 1443 states have internal predecessors, (2054), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-12 13:03:43,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 2088 transitions. [2024-11-12 13:03:43,074 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 2088 transitions. Word has length 247 [2024-11-12 13:03:43,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:03:43,075 INFO L471 AbstractCegarLoop]: Abstraction has 1460 states and 2088 transitions. [2024-11-12 13:03:43,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.0) internal successors, (228), 5 states have internal predecessors, (228), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-12 13:03:43,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 2088 transitions. [2024-11-12 13:03:43,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2024-11-12 13:03:43,078 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:03:43,078 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 13:03:43,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-12 13:03:43,079 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-12 13:03:43,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:03:43,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1338538094, now seen corresponding path program 1 times [2024-11-12 13:03:43,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:03:43,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961127335] [2024-11-12 13:03:43,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:03:43,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:03:43,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:03:43,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-12 13:03:43,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:03:43,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-12 13:03:43,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:03:43,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-12 13:03:43,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:03:43,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-12 13:03:43,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:03:43,617 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-12 13:03:43,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:03:43,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961127335] [2024-11-12 13:03:43,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961127335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:03:43,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:03:43,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 13:03:43,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307279319] [2024-11-12 13:03:43,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:03:43,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 13:03:43,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:03:43,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 13:03:43,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 13:03:43,621 INFO L87 Difference]: Start difference. First operand 1460 states and 2088 transitions. Second operand has 5 states, 5 states have (on average 47.4) internal successors, (237), 4 states have internal predecessors, (237), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-12 13:03:44,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:03:44,209 INFO L93 Difference]: Finished difference Result 1421 states and 2021 transitions. [2024-11-12 13:03:44,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 13:03:44,210 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 47.4) internal successors, (237), 4 states have internal predecessors, (237), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 257 [2024-11-12 13:03:44,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:03:44,217 INFO L225 Difference]: With dead ends: 1421 [2024-11-12 13:03:44,218 INFO L226 Difference]: Without dead ends: 1421 [2024-11-12 13:03:44,219 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 13:03:44,219 INFO L435 NwaCegarLoop]: 1218 mSDtfsCounter, 54 mSDsluCounter, 3500 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 4718 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-12 13:03:44,220 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 4718 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-12 13:03:44,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1421 states. [2024-11-12 13:03:44,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1421 to 1418. [2024-11-12 13:03:44,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1418 states, 1396 states have (on average 1.416189111747851) internal successors, (1977), 1401 states have internal predecessors, (1977), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-12 13:03:44,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1418 states to 1418 states and 2011 transitions. [2024-11-12 13:03:44,255 INFO L78 Accepts]: Start accepts. Automaton has 1418 states and 2011 transitions. Word has length 257 [2024-11-12 13:03:44,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:03:44,256 INFO L471 AbstractCegarLoop]: Abstraction has 1418 states and 2011 transitions. [2024-11-12 13:03:44,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.4) internal successors, (237), 4 states have internal predecessors, (237), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-12 13:03:44,256 INFO L276 IsEmpty]: Start isEmpty. Operand 1418 states and 2011 transitions. [2024-11-12 13:03:44,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2024-11-12 13:03:44,260 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:03:44,260 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 13:03:44,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-12 13:03:44,261 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-12 13:03:44,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:03:44,262 INFO L85 PathProgramCache]: Analyzing trace with hash 302958368, now seen corresponding path program 1 times [2024-11-12 13:03:44,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:03:44,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843512047] [2024-11-12 13:03:44,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:03:44,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:03:44,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:03:44,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-12 13:03:44,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:03:44,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-12 13:03:44,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:03:44,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-12 13:03:44,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:03:44,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-12 13:03:44,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:03:44,654 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-12 13:03:44,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:03:44,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843512047] [2024-11-12 13:03:44,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843512047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:03:44,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:03:44,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 13:03:44,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112468342] [2024-11-12 13:03:44,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:03:44,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 13:03:44,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:03:44,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 13:03:44,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 13:03:44,658 INFO L87 Difference]: Start difference. First operand 1418 states and 2011 transitions. Second operand has 4 states, 4 states have (on average 59.25) internal successors, (237), 3 states have internal predecessors, (237), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-12 13:03:45,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:03:45,114 INFO L93 Difference]: Finished difference Result 1421 states and 2018 transitions. [2024-11-12 13:03:45,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 13:03:45,115 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 59.25) internal successors, (237), 3 states have internal predecessors, (237), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 257 [2024-11-12 13:03:45,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:03:45,120 INFO L225 Difference]: With dead ends: 1421 [2024-11-12 13:03:45,121 INFO L226 Difference]: Without dead ends: 1421 [2024-11-12 13:03:45,121 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 13:03:45,122 INFO L435 NwaCegarLoop]: 1232 mSDtfsCounter, 25 mSDsluCounter, 2310 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 3542 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-12 13:03:45,122 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 3542 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-12 13:03:45,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1421 states. [2024-11-12 13:03:45,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1421 to 1418. [2024-11-12 13:03:45,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1418 states, 1396 states have (on average 1.4140401146131805) internal successors, (1974), 1401 states have internal predecessors, (1974), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-12 13:03:45,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1418 states to 1418 states and 2008 transitions. [2024-11-12 13:03:45,213 INFO L78 Accepts]: Start accepts. Automaton has 1418 states and 2008 transitions. Word has length 257 [2024-11-12 13:03:45,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:03:45,214 INFO L471 AbstractCegarLoop]: Abstraction has 1418 states and 2008 transitions. [2024-11-12 13:03:45,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.25) internal successors, (237), 3 states have internal predecessors, (237), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-12 13:03:45,214 INFO L276 IsEmpty]: Start isEmpty. Operand 1418 states and 2008 transitions. [2024-11-12 13:03:45,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2024-11-12 13:03:45,217 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:03:45,217 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 13:03:45,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-12 13:03:45,218 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-12 13:03:45,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:03:45,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1947904100, now seen corresponding path program 1 times [2024-11-12 13:03:45,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:03:45,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448629210] [2024-11-12 13:03:45,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:03:45,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:03:45,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:03:46,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-12 13:03:46,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:03:46,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-12 13:03:46,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:03:46,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-12 13:03:46,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:03:46,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-12 13:03:46,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:03:46,384 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-12 13:03:46,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:03:46,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448629210] [2024-11-12 13:03:46,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448629210] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 13:03:46,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1017144643] [2024-11-12 13:03:46,385 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:03:46,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 13:03:46,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 13:03:46,388 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 13:03:46,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 13:03:47,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:03:47,056 INFO L256 TraceCheckSpWp]: Trace formula consists of 1265 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-12 13:03:47,078 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 13:03:47,742 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-12 13:03:47,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-12 13:03:47,785 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-12 13:03:47,786 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 13:03:47,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1017144643] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:03:47,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 13:03:47,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2024-11-12 13:03:47,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436521372] [2024-11-12 13:03:47,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:03:47,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 13:03:47,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:03:47,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 13:03:47,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-11-12 13:03:47,789 INFO L87 Difference]: Start difference. First operand 1418 states and 2008 transitions. Second operand has 7 states, 7 states have (on average 34.0) internal successors, (238), 7 states have internal predecessors, (238), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-12 13:03:52,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-12 13:03:52,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:03:52,272 INFO L93 Difference]: Finished difference Result 1744 states and 2439 transitions. [2024-11-12 13:03:52,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 13:03:52,273 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 34.0) internal successors, (238), 7 states have internal predecessors, (238), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 257 [2024-11-12 13:03:52,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:03:52,282 INFO L225 Difference]: With dead ends: 1744 [2024-11-12 13:03:52,282 INFO L226 Difference]: Without dead ends: 1744 [2024-11-12 13:03:52,283 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 253 SyntacticMatches, 7 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-11-12 13:03:52,283 INFO L435 NwaCegarLoop]: 1204 mSDtfsCounter, 1271 mSDsluCounter, 3895 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1279 SdHoareTripleChecker+Valid, 5099 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-12 13:03:52,284 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1279 Valid, 5099 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 331 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2024-11-12 13:03:52,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2024-11-12 13:03:52,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 1589. [2024-11-12 13:03:52,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1589 states, 1557 states have (on average 1.4046242774566473) internal successors, (2187), 1566 states have internal predecessors, (2187), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 18 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-12 13:03:52,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1589 states to 1589 states and 2235 transitions. [2024-11-12 13:03:52,332 INFO L78 Accepts]: Start accepts. Automaton has 1589 states and 2235 transitions. Word has length 257 [2024-11-12 13:03:52,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:03:52,333 INFO L471 AbstractCegarLoop]: Abstraction has 1589 states and 2235 transitions. [2024-11-12 13:03:52,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 34.0) internal successors, (238), 7 states have internal predecessors, (238), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-12 13:03:52,333 INFO L276 IsEmpty]: Start isEmpty. Operand 1589 states and 2235 transitions. [2024-11-12 13:03:52,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2024-11-12 13:03:52,339 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:03:52,340 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 13:03:52,364 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-12 13:03:52,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-12 13:03:52,542 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-12 13:03:52,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:03:52,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1092504971, now seen corresponding path program 1 times [2024-11-12 13:03:52,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:03:52,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154515189] [2024-11-12 13:03:52,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:03:52,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:03:52,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:03:54,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-12 13:03:54,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:03:54,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-12 13:03:54,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:03:54,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-12 13:03:54,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:03:54,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-12 13:03:54,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:03:54,232 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 74 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-12 13:03:54,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:03:54,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154515189] [2024-11-12 13:03:54,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154515189] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 13:03:54,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245897938] [2024-11-12 13:03:54,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:03:54,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 13:03:54,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 13:03:54,236 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 13:03:54,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-12 13:03:55,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:03:55,063 INFO L256 TraceCheckSpWp]: Trace formula consists of 1645 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-12 13:03:55,076 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 13:03:55,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-12 13:03:55,531 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-12 13:03:55,543 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-12 13:03:55,551 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 74 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-12 13:03:55,551 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 13:03:55,914 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 74 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-12 13:03:55,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1245897938] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 13:03:55,914 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 13:03:55,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 5] total 13 [2024-11-12 13:03:55,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210618883] [2024-11-12 13:03:55,915 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 13:03:55,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-12 13:03:55,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:03:55,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-12 13:03:55,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-11-12 13:03:55,918 INFO L87 Difference]: Start difference. First operand 1589 states and 2235 transitions. Second operand has 13 states, 13 states have (on average 37.53846153846154) internal successors, (488), 12 states have internal predecessors, (488), 3 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-12 13:03:57,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:03:57,022 INFO L93 Difference]: Finished difference Result 2543 states and 3528 transitions. [2024-11-12 13:03:57,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-12 13:03:57,022 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 37.53846153846154) internal successors, (488), 12 states have internal predecessors, (488), 3 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 334 [2024-11-12 13:03:57,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:03:57,034 INFO L225 Difference]: With dead ends: 2543 [2024-11-12 13:03:57,035 INFO L226 Difference]: Without dead ends: 2543 [2024-11-12 13:03:57,035 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 689 GetRequests, 666 SyntacticMatches, 7 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2024-11-12 13:03:57,036 INFO L435 NwaCegarLoop]: 1206 mSDtfsCounter, 1962 mSDsluCounter, 8625 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2000 SdHoareTripleChecker+Valid, 9831 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-12 13:03:57,036 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2000 Valid, 9831 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 707 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-12 13:03:57,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2543 states. [2024-11-12 13:03:57,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2543 to 2246. [2024-11-12 13:03:57,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2246 states, 2202 states have (on average 1.379654859218892) internal successors, (3038), 2211 states have internal predecessors, (3038), 35 states have call successors, (35), 7 states have call predecessors, (35), 7 states have return successors, (35), 29 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-12 13:03:57,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2246 states to 2246 states and 3108 transitions. [2024-11-12 13:03:57,091 INFO L78 Accepts]: Start accepts. Automaton has 2246 states and 3108 transitions. Word has length 334 [2024-11-12 13:03:57,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:03:57,092 INFO L471 AbstractCegarLoop]: Abstraction has 2246 states and 3108 transitions. [2024-11-12 13:03:57,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 37.53846153846154) internal successors, (488), 12 states have internal predecessors, (488), 3 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-12 13:03:57,093 INFO L276 IsEmpty]: Start isEmpty. Operand 2246 states and 3108 transitions. [2024-11-12 13:03:57,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 779 [2024-11-12 13:03:57,109 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:03:57,109 INFO L218 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 13:03:57,134 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-12 13:03:57,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-12 13:03:57,314 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-12 13:03:57,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:03:57,315 INFO L85 PathProgramCache]: Analyzing trace with hash 159948294, now seen corresponding path program 1 times [2024-11-12 13:03:57,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:03:57,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769496402] [2024-11-12 13:03:57,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:03:57,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:03:57,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:04:04,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-12 13:04:04,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:04:05,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-12 13:04:05,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:04:05,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-12 13:04:05,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:04:05,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-12 13:04:05,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:04:05,027 INFO L134 CoverageAnalysis]: Checked inductivity of 1216 backedges. 296 proven. 896 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-12 13:04:05,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:04:05,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769496402] [2024-11-12 13:04:05,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769496402] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 13:04:05,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [144627150] [2024-11-12 13:04:05,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:04:05,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 13:04:05,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 13:04:05,030 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 13:04:05,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-12 13:04:06,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:04:06,406 INFO L256 TraceCheckSpWp]: Trace formula consists of 3766 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-12 13:04:06,425 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 13:04:06,432 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-12 13:04:06,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-12 13:04:06,997 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-12 13:04:07,174 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-12 13:04:07,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-12 13:04:07,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-12 13:04:07,395 INFO L134 CoverageAnalysis]: Checked inductivity of 1216 backedges. 296 proven. 896 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-12 13:04:07,395 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 13:04:08,361 INFO L134 CoverageAnalysis]: Checked inductivity of 1216 backedges. 296 proven. 896 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-12 13:04:08,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [144627150] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 13:04:08,361 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 13:04:08,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 9, 8] total 22 [2024-11-12 13:04:08,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413754473] [2024-11-12 13:04:08,362 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 13:04:08,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-12 13:04:08,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:04:08,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-12 13:04:08,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=311, Unknown=0, NotChecked=0, Total=462 [2024-11-12 13:04:08,367 INFO L87 Difference]: Start difference. First operand 2246 states and 3108 transitions. Second operand has 22 states, 22 states have (on average 62.81818181818182) internal successors, (1382), 21 states have internal predecessors, (1382), 3 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-12 13:04:09,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:04:09,855 INFO L93 Difference]: Finished difference Result 4301 states and 5898 transitions. [2024-11-12 13:04:09,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-12 13:04:09,857 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 62.81818181818182) internal successors, (1382), 21 states have internal predecessors, (1382), 3 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 778 [2024-11-12 13:04:09,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:04:09,874 INFO L225 Difference]: With dead ends: 4301 [2024-11-12 13:04:09,874 INFO L226 Difference]: Without dead ends: 4301 [2024-11-12 13:04:09,875 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1590 GetRequests, 1552 SyntacticMatches, 7 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=292, Invalid=764, Unknown=0, NotChecked=0, Total=1056 [2024-11-12 13:04:09,875 INFO L435 NwaCegarLoop]: 1206 mSDtfsCounter, 5339 mSDsluCounter, 13564 mSDsCounter, 0 mSdLazyCounter, 984 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5425 SdHoareTripleChecker+Valid, 14770 SdHoareTripleChecker+Invalid, 1051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-12 13:04:09,876 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5425 Valid, 14770 Invalid, 1051 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 984 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-12 13:04:09,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4301 states. [2024-11-12 13:04:09,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4301 to 4004. [2024-11-12 13:04:09,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4004 states, 3936 states have (on average 1.3556910569105691) internal successors, (5336), 3945 states have internal predecessors, (5336), 59 states have call successors, (59), 7 states have call predecessors, (59), 7 states have return successors, (59), 53 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-12 13:04:09,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4004 states to 4004 states and 5454 transitions. [2024-11-12 13:04:09,952 INFO L78 Accepts]: Start accepts. Automaton has 4004 states and 5454 transitions. Word has length 778 [2024-11-12 13:04:09,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:04:09,953 INFO L471 AbstractCegarLoop]: Abstraction has 4004 states and 5454 transitions. [2024-11-12 13:04:09,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 62.81818181818182) internal successors, (1382), 21 states have internal predecessors, (1382), 3 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-12 13:04:09,954 INFO L276 IsEmpty]: Start isEmpty. Operand 4004 states and 5454 transitions. [2024-11-12 13:04:10,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1667 [2024-11-12 13:04:10,033 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:04:10,034 INFO L218 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 13:04:10,066 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-12 13:04:10,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 13:04:10,235 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-12 13:04:10,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:04:10,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1796710744, now seen corresponding path program 2 times [2024-11-12 13:04:10,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:04:10,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745500155] [2024-11-12 13:04:10,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:04:10,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:04:12,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:04:18,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-12 13:04:18,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:04:18,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-12 13:04:18,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:04:18,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-12 13:04:18,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:04:18,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-12 13:04:18,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:04:18,880 INFO L134 CoverageAnalysis]: Checked inductivity of 7438 backedges. 2015 proven. 76 refuted. 0 times theorem prover too weak. 5347 trivial. 0 not checked. [2024-11-12 13:04:18,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:04:18,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745500155] [2024-11-12 13:04:18,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745500155] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 13:04:18,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465145027] [2024-11-12 13:04:18,881 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 13:04:18,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 13:04:18,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 13:04:18,884 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 13:04:18,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-12 13:04:20,311 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-12 13:04:20,311 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 13:04:20,324 INFO L256 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-12 13:04:20,350 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 13:04:20,390 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-12 13:04:21,070 INFO L134 CoverageAnalysis]: Checked inductivity of 7438 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7438 trivial. 0 not checked. [2024-11-12 13:04:21,070 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 13:04:21,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465145027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:04:21,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 13:04:21,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2024-11-12 13:04:21,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847733563] [2024-11-12 13:04:21,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:04:21,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-12 13:04:21,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:04:21,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-12 13:04:21,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2024-11-12 13:04:21,074 INFO L87 Difference]: Start difference. First operand 4004 states and 5454 transitions. Second operand has 10 states, 10 states have (on average 24.4) internal successors, (244), 10 states have internal predecessors, (244), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-12 13:04:21,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:04:21,980 INFO L93 Difference]: Finished difference Result 4010 states and 5462 transitions. [2024-11-12 13:04:21,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 13:04:21,981 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 24.4) internal successors, (244), 10 states have internal predecessors, (244), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 1666 [2024-11-12 13:04:21,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:04:21,997 INFO L225 Difference]: With dead ends: 4010 [2024-11-12 13:04:21,997 INFO L226 Difference]: Without dead ends: 4010 [2024-11-12 13:04:21,998 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1691 GetRequests, 1668 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=110, Invalid=490, Unknown=0, NotChecked=0, Total=600 [2024-11-12 13:04:21,998 INFO L435 NwaCegarLoop]: 1240 mSDtfsCounter, 394 mSDsluCounter, 6555 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 7795 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-12 13:04:21,999 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 7795 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 654 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-12 13:04:22,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4010 states. [2024-11-12 13:04:22,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4010 to 4007. [2024-11-12 13:04:22,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4007 states, 3939 states have (on average 1.3554201574003555) internal successors, (5339), 3948 states have internal predecessors, (5339), 59 states have call successors, (59), 7 states have call predecessors, (59), 7 states have return successors, (59), 53 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-12 13:04:22,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4007 states to 4007 states and 5457 transitions. [2024-11-12 13:04:22,065 INFO L78 Accepts]: Start accepts. Automaton has 4007 states and 5457 transitions. Word has length 1666 [2024-11-12 13:04:22,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:04:22,067 INFO L471 AbstractCegarLoop]: Abstraction has 4007 states and 5457 transitions. [2024-11-12 13:04:22,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 24.4) internal successors, (244), 10 states have internal predecessors, (244), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-12 13:04:22,068 INFO L276 IsEmpty]: Start isEmpty. Operand 4007 states and 5457 transitions. [2024-11-12 13:04:22,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1667 [2024-11-12 13:04:22,089 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:04:22,090 INFO L218 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 13:04:22,112 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-12 13:04:22,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-12 13:04:22,298 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-12 13:04:22,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:04:22,300 INFO L85 PathProgramCache]: Analyzing trace with hash -2010129488, now seen corresponding path program 1 times [2024-11-12 13:04:22,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:04:22,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428418130] [2024-11-12 13:04:22,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:04:22,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:04:23,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:04:24,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-12 13:04:24,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:04:24,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-12 13:04:24,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:04:24,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-12 13:04:24,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:04:24,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-12 13:04:24,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:04:24,620 INFO L134 CoverageAnalysis]: Checked inductivity of 7438 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7438 trivial. 0 not checked. [2024-11-12 13:04:24,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:04:24,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428418130] [2024-11-12 13:04:24,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428418130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:04:24,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:04:24,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 13:04:24,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726644975] [2024-11-12 13:04:24,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:04:24,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 13:04:24,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:04:24,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 13:04:24,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 13:04:24,624 INFO L87 Difference]: Start difference. First operand 4007 states and 5457 transitions. Second operand has 5 states, 5 states have (on average 48.8) internal successors, (244), 4 states have internal predecessors, (244), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-12 13:04:25,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:04:25,047 INFO L93 Difference]: Finished difference Result 4007 states and 5500 transitions. [2024-11-12 13:04:25,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 13:04:25,047 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 48.8) internal successors, (244), 4 states have internal predecessors, (244), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 1666 [2024-11-12 13:04:25,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:04:25,058 INFO L225 Difference]: With dead ends: 4007 [2024-11-12 13:04:25,058 INFO L226 Difference]: Without dead ends: 4007 [2024-11-12 13:04:25,058 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 13:04:25,059 INFO L435 NwaCegarLoop]: 1217 mSDtfsCounter, 33 mSDsluCounter, 3496 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 4713 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-12 13:04:25,059 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 4713 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-12 13:04:25,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4007 states. [2024-11-12 13:04:25,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4007 to 3998. [2024-11-12 13:04:25,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3998 states, 3930 states have (on average 1.3557251908396946) internal successors, (5328), 3939 states have internal predecessors, (5328), 59 states have call successors, (59), 7 states have call predecessors, (59), 7 states have return successors, (59), 53 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-12 13:04:25,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3998 states to 3998 states and 5446 transitions. [2024-11-12 13:04:25,119 INFO L78 Accepts]: Start accepts. Automaton has 3998 states and 5446 transitions. Word has length 1666 [2024-11-12 13:04:25,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:04:25,122 INFO L471 AbstractCegarLoop]: Abstraction has 3998 states and 5446 transitions. [2024-11-12 13:04:25,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.8) internal successors, (244), 4 states have internal predecessors, (244), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-12 13:04:25,122 INFO L276 IsEmpty]: Start isEmpty. Operand 3998 states and 5446 transitions. [2024-11-12 13:04:25,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1668 [2024-11-12 13:04:25,142 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:04:25,143 INFO L218 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 13:04:25,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-12 13:04:25,143 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-12 13:04:25,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:04:25,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1875414766, now seen corresponding path program 1 times [2024-11-12 13:04:25,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:04:25,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178590997] [2024-11-12 13:04:25,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:04:25,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:04:26,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat