./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dce4b82-dad6-479f-bb16-74d8cf28bd25/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dce4b82-dad6-479f-bb16-74d8cf28bd25/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dce4b82-dad6-479f-bb16-74d8cf28bd25/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dce4b82-dad6-479f-bb16-74d8cf28bd25/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dce4b82-dad6-479f-bb16-74d8cf28bd25/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dce4b82-dad6-479f-bb16-74d8cf28bd25/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c7b5cea41c34641368705a00e3051c009f6877551b3530b7d4fceaf386f5f58c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 01:24:04,437 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 01:24:04,531 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dce4b82-dad6-479f-bb16-74d8cf28bd25/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2024-11-09 01:24:04,538 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 01:24:04,540 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 01:24:04,585 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 01:24:04,585 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 01:24:04,588 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 01:24:04,588 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 01:24:04,589 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 01:24:04,589 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 01:24:04,590 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 01:24:04,590 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 01:24:04,591 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 01:24:04,591 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 01:24:04,591 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 01:24:04,592 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 01:24:04,592 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 01:24:04,593 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 01:24:04,593 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 01:24:04,594 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 01:24:04,594 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 01:24:04,599 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 01:24:04,599 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 01:24:04,600 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 01:24:04,600 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 01:24:04,600 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 01:24:04,601 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 01:24:04,601 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 01:24:04,601 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 01:24:04,601 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 01:24:04,602 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 01:24:04,602 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 01:24:04,604 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 01:24:04,605 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 01:24:04,605 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 01:24:04,605 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 01:24:04,606 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 01:24:04,606 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 01:24:04,607 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 01:24:04,607 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 01:24:04,608 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:24:04,609 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 01:24:04,609 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 01:24:04,609 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 01:24:04,610 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 01:24:04,610 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 01:24:04,610 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 01:24:04,611 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 01:24:04,611 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dce4b82-dad6-479f-bb16-74d8cf28bd25/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dce4b82-dad6-479f-bb16-74d8cf28bd25/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7b5cea41c34641368705a00e3051c009f6877551b3530b7d4fceaf386f5f58c [2024-11-09 01:24:04,868 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 01:24:04,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 01:24:04,904 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 01:24:04,905 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 01:24:04,906 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 01:24:04,907 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dce4b82-dad6-479f-bb16-74d8cf28bd25/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-1.i Unable to find full path for "g++" [2024-11-09 01:24:06,885 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 01:24:07,202 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 01:24:07,202 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dce4b82-dad6-479f-bb16-74d8cf28bd25/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-1.i [2024-11-09 01:24:07,221 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dce4b82-dad6-479f-bb16-74d8cf28bd25/bin/utaipan-verify-YMUCfTKeje/data/f30a3f6fe/64dcf26a6559423687b6da3bacf55ac8/FLAG114527d5c [2024-11-09 01:24:07,237 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dce4b82-dad6-479f-bb16-74d8cf28bd25/bin/utaipan-verify-YMUCfTKeje/data/f30a3f6fe/64dcf26a6559423687b6da3bacf55ac8 [2024-11-09 01:24:07,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 01:24:07,241 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 01:24:07,242 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 01:24:07,243 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 01:24:07,249 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 01:24:07,250 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:24:07" (1/1) ... [2024-11-09 01:24:07,251 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ef3567d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:24:07, skipping insertion in model container [2024-11-09 01:24:07,251 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:24:07" (1/1) ... [2024-11-09 01:24:07,333 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:24:07,938 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:07,999 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:08,006 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:08,015 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:08,030 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:08,092 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:08,094 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:08,101 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:08,114 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:08,150 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:08,150 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:08,153 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:08,154 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:08,164 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:24:08,184 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 01:24:08,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:24:08,392 INFO L204 MainTranslator]: Completed translation [2024-11-09 01:24:08,393 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:24:08 WrapperNode [2024-11-09 01:24:08,393 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 01:24:08,395 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 01:24:08,395 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 01:24:08,395 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 01:24:08,403 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:24:08" (1/1) ... [2024-11-09 01:24:08,453 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:24:08" (1/1) ... [2024-11-09 01:24:08,558 INFO L138 Inliner]: procedures = 177, calls = 375, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2006 [2024-11-09 01:24:08,559 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 01:24:08,560 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 01:24:08,560 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 01:24:08,560 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 01:24:08,570 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:24:08" (1/1) ... [2024-11-09 01:24:08,571 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:24:08" (1/1) ... [2024-11-09 01:24:08,594 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:24:08" (1/1) ... [2024-11-09 01:24:08,595 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:24:08" (1/1) ... [2024-11-09 01:24:08,698 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:24:08" (1/1) ... [2024-11-09 01:24:08,714 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:24:08" (1/1) ... [2024-11-09 01:24:08,719 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:24:08" (1/1) ... [2024-11-09 01:24:08,726 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:24:08" (1/1) ... [2024-11-09 01:24:08,739 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 01:24:08,740 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 01:24:08,740 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 01:24:08,740 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 01:24:08,741 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:24:08" (1/1) ... [2024-11-09 01:24:08,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:24:08,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dce4b82-dad6-479f-bb16-74d8cf28bd25/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:24:08,820 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dce4b82-dad6-479f-bb16-74d8cf28bd25/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 01:24:08,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dce4b82-dad6-479f-bb16-74d8cf28bd25/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 01:24:08,854 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-09 01:24:08,854 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-09 01:24:08,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 01:24:08,856 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 01:24:08,856 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 01:24:08,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 01:24:08,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-09 01:24:08,857 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-09 01:24:08,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 01:24:08,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 01:24:08,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 01:24:08,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 01:24:08,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 01:24:08,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 01:24:08,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 01:24:08,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 01:24:08,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 01:24:09,150 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 01:24:09,154 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 01:24:09,179 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-09 01:24:12,995 INFO L? ?]: Removed 1735 outVars from TransFormulas that were not future-live. [2024-11-09 01:24:12,995 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 01:24:16,121 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 01:24:16,121 INFO L316 CfgBuilder]: Removed 75 assume(true) statements. [2024-11-09 01:24:16,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:24:16 BoogieIcfgContainer [2024-11-09 01:24:16,124 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 01:24:16,128 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 01:24:16,128 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 01:24:16,133 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 01:24:16,133 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 01:24:07" (1/3) ... [2024-11-09 01:24:16,134 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7004869b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:24:16, skipping insertion in model container [2024-11-09 01:24:16,135 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:24:08" (2/3) ... [2024-11-09 01:24:16,137 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7004869b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:24:16, skipping insertion in model container [2024-11-09 01:24:16,137 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:24:16" (3/3) ... [2024-11-09 01:24:16,139 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test5-1.i [2024-11-09 01:24:16,165 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 01:24:16,165 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 712 error locations. [2024-11-09 01:24:16,284 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 01:24:16,294 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=FINITE_AUTOMATA, 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;@3a8c0672, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 01:24:16,295 INFO L334 AbstractCegarLoop]: Starting to check reachability of 712 error locations. [2024-11-09 01:24:16,309 INFO L276 IsEmpty]: Start isEmpty. Operand has 1311 states, 588 states have (on average 2.4812925170068025) internal successors, (1459), 1301 states have internal predecessors, (1459), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 01:24:16,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 01:24:16,319 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:24:16,320 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 01:24:16,321 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-11-09 01:24:16,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:24:16,332 INFO L85 PathProgramCache]: Analyzing trace with hash 99911425, now seen corresponding path program 1 times [2024-11-09 01:24:16,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:24:16,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851659569] [2024-11-09 01:24:16,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:24:16,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:24:16,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:24:16,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:24:16,641 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:24:16,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851659569] [2024-11-09 01:24:16,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851659569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:24:16,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:24:16,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:24:16,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118135527] [2024-11-09 01:24:16,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:24:16,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:24:16,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:24:16,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:24:16,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:24:16,721 INFO L87 Difference]: Start difference. First operand has 1311 states, 588 states have (on average 2.4812925170068025) internal successors, (1459), 1301 states have internal predecessors, (1459), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:24:19,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:24:20,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:24:22,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:24:25,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:24:27,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:24:29,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:24:31,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:24:32,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:24:32,302 INFO L93 Difference]: Finished difference Result 1410 states and 1536 transitions. [2024-11-09 01:24:32,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:24:32,305 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-09 01:24:32,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:24:32,331 INFO L225 Difference]: With dead ends: 1410 [2024-11-09 01:24:32,332 INFO L226 Difference]: Without dead ends: 1409 [2024-11-09 01:24:32,333 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:24:32,338 INFO L432 NwaCegarLoop]: 804 mSDtfsCounter, 1145 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 936 mSolverCounterSat, 99 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1156 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 1040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 936 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:24:32,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1156 Valid, 964 Invalid, 1040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 936 Invalid, 5 Unknown, 0 Unchecked, 15.4s Time] [2024-11-09 01:24:32,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1409 states. [2024-11-09 01:24:32,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1409 to 1198. [2024-11-09 01:24:32,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1198 states, 579 states have (on average 2.1830742659758204) internal successors, (1264), 1188 states have internal predecessors, (1264), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 01:24:32,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1198 states to 1198 states and 1288 transitions. [2024-11-09 01:24:32,459 INFO L78 Accepts]: Start accepts. Automaton has 1198 states and 1288 transitions. Word has length 4 [2024-11-09 01:24:32,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:24:32,460 INFO L471 AbstractCegarLoop]: Abstraction has 1198 states and 1288 transitions. [2024-11-09 01:24:32,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:24:32,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1198 states and 1288 transitions. [2024-11-09 01:24:32,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 01:24:32,461 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:24:32,462 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 01:24:32,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 01:24:32,462 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-11-09 01:24:32,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:24:32,463 INFO L85 PathProgramCache]: Analyzing trace with hash 99911426, now seen corresponding path program 1 times [2024-11-09 01:24:32,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:24:32,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354373538] [2024-11-09 01:24:32,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:24:32,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:24:32,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:24:32,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:24:32,612 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:24:32,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354373538] [2024-11-09 01:24:32,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354373538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:24:32,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:24:32,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:24:32,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499270542] [2024-11-09 01:24:32,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:24:32,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:24:32,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:24:32,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:24:32,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:24:32,619 INFO L87 Difference]: Start difference. First operand 1198 states and 1288 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:24:34,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:24:37,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:24:39,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:24:40,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:24:43,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:24:46,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:24:48,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:24:51,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:24:53,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:24:55,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:24:55,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:24:55,364 INFO L93 Difference]: Finished difference Result 1690 states and 1835 transitions. [2024-11-09 01:24:55,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:24:55,365 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-09 01:24:55,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:24:55,383 INFO L225 Difference]: With dead ends: 1690 [2024-11-09 01:24:55,383 INFO L226 Difference]: Without dead ends: 1690 [2024-11-09 01:24:55,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:24:55,392 INFO L432 NwaCegarLoop]: 1105 mSDtfsCounter, 703 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 1034 mSolverCounterSat, 25 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 708 SdHoareTripleChecker+Valid, 1604 SdHoareTripleChecker+Invalid, 1068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1034 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.6s IncrementalHoareTripleChecker+Time [2024-11-09 01:24:55,393 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [708 Valid, 1604 Invalid, 1068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1034 Invalid, 9 Unknown, 0 Unchecked, 22.6s Time] [2024-11-09 01:24:55,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1690 states. [2024-11-09 01:24:55,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1690 to 1328. [2024-11-09 01:24:55,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1328 states, 719 states have (on average 2.152990264255911) internal successors, (1548), 1318 states have internal predecessors, (1548), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 01:24:55,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1328 states to 1328 states and 1572 transitions. [2024-11-09 01:24:55,521 INFO L78 Accepts]: Start accepts. Automaton has 1328 states and 1572 transitions. Word has length 4 [2024-11-09 01:24:55,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:24:55,521 INFO L471 AbstractCegarLoop]: Abstraction has 1328 states and 1572 transitions. [2024-11-09 01:24:55,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:24:55,522 INFO L276 IsEmpty]: Start isEmpty. Operand 1328 states and 1572 transitions. [2024-11-09 01:24:55,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 01:24:55,522 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:24:55,522 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 01:24:55,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 01:24:55,523 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr620REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-11-09 01:24:55,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:24:55,531 INFO L85 PathProgramCache]: Analyzing trace with hash -541341922, now seen corresponding path program 1 times [2024-11-09 01:24:55,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:24:55,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841191243] [2024-11-09 01:24:55,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:24:55,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:24:55,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:24:55,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:24:55,627 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:24:55,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841191243] [2024-11-09 01:24:55,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841191243] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:24:55,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:24:55,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:24:55,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023222116] [2024-11-09 01:24:55,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:24:55,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:24:55,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:24:55,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:24:55,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:24:55,634 INFO L87 Difference]: Start difference. First operand 1328 states and 1572 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:24:58,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:25:00,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:25:02,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:25:03,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:25:05,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:25:07,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:25:09,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:25:11,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:25:13,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:25:15,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:25:17,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:25:19,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:25:21,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:25:21,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:25:21,985 INFO L93 Difference]: Finished difference Result 2640 states and 3126 transitions. [2024-11-09 01:25:21,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:25:21,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-09 01:25:21,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:25:21,997 INFO L225 Difference]: With dead ends: 2640 [2024-11-09 01:25:21,998 INFO L226 Difference]: Without dead ends: 2640 [2024-11-09 01:25:21,998 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:25:21,999 INFO L432 NwaCegarLoop]: 1337 mSDtfsCounter, 1235 mSDsluCounter, 1117 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 4 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1246 SdHoareTripleChecker+Valid, 2454 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.3s IncrementalHoareTripleChecker+Time [2024-11-09 01:25:22,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1246 Valid, 2454 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 338 Invalid, 11 Unknown, 0 Unchecked, 26.3s Time] [2024-11-09 01:25:22,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2640 states. [2024-11-09 01:25:22,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2640 to 1332. [2024-11-09 01:25:22,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1332 states, 723 states have (on average 2.1466113416320884) internal successors, (1552), 1322 states have internal predecessors, (1552), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 01:25:22,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1332 states to 1332 states and 1576 transitions. [2024-11-09 01:25:22,048 INFO L78 Accepts]: Start accepts. Automaton has 1332 states and 1576 transitions. Word has length 6 [2024-11-09 01:25:22,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:25:22,049 INFO L471 AbstractCegarLoop]: Abstraction has 1332 states and 1576 transitions. [2024-11-09 01:25:22,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:25:22,049 INFO L276 IsEmpty]: Start isEmpty. Operand 1332 states and 1576 transitions. [2024-11-09 01:25:22,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 01:25:22,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:25:22,050 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:25:22,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 01:25:22,051 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-11-09 01:25:22,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:25:22,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1021161650, now seen corresponding path program 1 times [2024-11-09 01:25:22,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:25:22,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118013830] [2024-11-09 01:25:22,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:25:22,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:25:22,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:25:22,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:25:22,209 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:25:22,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118013830] [2024-11-09 01:25:22,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118013830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:25:22,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:25:22,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:25:22,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669966445] [2024-11-09 01:25:22,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:25:22,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:25:22,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:25:22,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:25:22,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:25:22,213 INFO L87 Difference]: Start difference. First operand 1332 states and 1576 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:25:24,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:25:26,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:25:28,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:25:30,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:25:32,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:25:34,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:25:36,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:25:39,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:25:41,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:25:41,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:25:41,687 INFO L93 Difference]: Finished difference Result 1292 states and 1534 transitions. [2024-11-09 01:25:41,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:25:41,688 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-09 01:25:41,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:25:41,694 INFO L225 Difference]: With dead ends: 1292 [2024-11-09 01:25:41,695 INFO L226 Difference]: Without dead ends: 1292 [2024-11-09 01:25:41,695 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:25:41,696 INFO L432 NwaCegarLoop]: 1079 mSDtfsCounter, 61 mSDsluCounter, 1037 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 0 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 2116 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:25:41,697 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 2116 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 285 Invalid, 9 Unknown, 0 Unchecked, 19.4s Time] [2024-11-09 01:25:41,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1292 states. [2024-11-09 01:25:41,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1292 to 1292. [2024-11-09 01:25:41,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1292 states, 707 states have (on average 2.1357850070721356) internal successors, (1510), 1282 states have internal predecessors, (1510), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 01:25:41,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1292 states to 1292 states and 1534 transitions. [2024-11-09 01:25:41,731 INFO L78 Accepts]: Start accepts. Automaton has 1292 states and 1534 transitions. Word has length 11 [2024-11-09 01:25:41,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:25:41,732 INFO L471 AbstractCegarLoop]: Abstraction has 1292 states and 1534 transitions. [2024-11-09 01:25:41,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:25:41,732 INFO L276 IsEmpty]: Start isEmpty. Operand 1292 states and 1534 transitions. [2024-11-09 01:25:41,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 01:25:41,733 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:25:41,733 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:25:41,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 01:25:41,734 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-11-09 01:25:41,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:25:41,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1598009645, now seen corresponding path program 1 times [2024-11-09 01:25:41,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:25:41,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696577883] [2024-11-09 01:25:41,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:25:41,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:25:41,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:25:41,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:25:41,893 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:25:41,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696577883] [2024-11-09 01:25:41,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696577883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:25:41,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:25:41,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 01:25:41,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868024192] [2024-11-09 01:25:41,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:25:41,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:25:41,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:25:41,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:25:41,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:25:41,895 INFO L87 Difference]: Start difference. First operand 1292 states and 1534 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:25:44,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:25:46,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:25:48,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:25:50,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:25:52,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:25:54,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:25:56,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:25:58,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:26:00,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:26:02,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:26:04,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:26:06,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:26:08,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:26:10,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:26:12,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:26:12,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:26:12,418 INFO L93 Difference]: Finished difference Result 1274 states and 1509 transitions. [2024-11-09 01:26:12,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:26:12,419 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-09 01:26:12,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:26:12,423 INFO L225 Difference]: With dead ends: 1274 [2024-11-09 01:26:12,423 INFO L226 Difference]: Without dead ends: 1274 [2024-11-09 01:26:12,424 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:26:12,424 INFO L432 NwaCegarLoop]: 1051 mSDtfsCounter, 41 mSDsluCounter, 2079 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 15 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 3130 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.5s IncrementalHoareTripleChecker+Time [2024-11-09 01:26:12,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 3130 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 429 Invalid, 14 Unknown, 0 Unchecked, 30.5s Time] [2024-11-09 01:26:12,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1274 states. [2024-11-09 01:26:12,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1274 to 1271. [2024-11-09 01:26:12,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1271 states, 700 states have (on average 2.117142857142857) internal successors, (1482), 1261 states have internal predecessors, (1482), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 01:26:12,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1271 states to 1271 states and 1506 transitions. [2024-11-09 01:26:12,452 INFO L78 Accepts]: Start accepts. Automaton has 1271 states and 1506 transitions. Word has length 12 [2024-11-09 01:26:12,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:26:12,452 INFO L471 AbstractCegarLoop]: Abstraction has 1271 states and 1506 transitions. [2024-11-09 01:26:12,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:26:12,453 INFO L276 IsEmpty]: Start isEmpty. Operand 1271 states and 1506 transitions. [2024-11-09 01:26:12,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 01:26:12,453 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:26:12,453 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:26:12,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 01:26:12,454 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-11-09 01:26:12,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:26:12,454 INFO L85 PathProgramCache]: Analyzing trace with hash 390157723, now seen corresponding path program 1 times [2024-11-09 01:26:12,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:26:12,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664166733] [2024-11-09 01:26:12,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:26:12,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:26:12,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:26:12,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:26:12,560 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:26:12,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664166733] [2024-11-09 01:26:12,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664166733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:26:12,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:26:12,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:26:12,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889948745] [2024-11-09 01:26:12,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:26:12,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:26:12,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:26:12,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:26:12,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:26:12,562 INFO L87 Difference]: Start difference. First operand 1271 states and 1506 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:26:14,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:26:16,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:26:18,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:26:21,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:26:23,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:26:25,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:26:27,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:26:27,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:26:27,948 INFO L93 Difference]: Finished difference Result 1271 states and 1506 transitions. [2024-11-09 01:26:27,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:26:27,948 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-11-09 01:26:27,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:26:27,953 INFO L225 Difference]: With dead ends: 1271 [2024-11-09 01:26:27,953 INFO L226 Difference]: Without dead ends: 1271 [2024-11-09 01:26:27,953 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:26:27,954 INFO L432 NwaCegarLoop]: 548 mSDtfsCounter, 1087 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 1440 mSolverCounterSat, 12 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1098 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 1458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1440 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2024-11-09 01:26:27,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1098 Valid, 1049 Invalid, 1458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1440 Invalid, 6 Unknown, 0 Unchecked, 15.3s Time] [2024-11-09 01:26:27,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1271 states. [2024-11-09 01:26:27,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1271 to 1267. [2024-11-09 01:26:27,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1267 states, 700 states have (on average 2.111428571428571) internal successors, (1478), 1257 states have internal predecessors, (1478), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 01:26:27,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1267 states to 1267 states and 1502 transitions. [2024-11-09 01:26:27,982 INFO L78 Accepts]: Start accepts. Automaton has 1267 states and 1502 transitions. Word has length 26 [2024-11-09 01:26:27,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:26:27,982 INFO L471 AbstractCegarLoop]: Abstraction has 1267 states and 1502 transitions. [2024-11-09 01:26:27,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:26:27,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1267 states and 1502 transitions. [2024-11-09 01:26:27,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 01:26:27,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:26:27,983 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:26:27,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 01:26:27,984 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-11-09 01:26:27,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:26:27,984 INFO L85 PathProgramCache]: Analyzing trace with hash 390157724, now seen corresponding path program 1 times [2024-11-09 01:26:27,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:26:27,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761198357] [2024-11-09 01:26:27,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:26:27,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:26:28,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:26:28,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:26:28,199 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:26:28,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761198357] [2024-11-09 01:26:28,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761198357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:26:28,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:26:28,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:26:28,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059939712] [2024-11-09 01:26:28,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:26:28,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:26:28,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:26:28,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:26:28,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:26:28,201 INFO L87 Difference]: Start difference. First operand 1267 states and 1502 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:26:30,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:26:32,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:26:34,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:26:36,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:26:38,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:26:40,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:26:42,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:26:44,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:26:46,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:26:49,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:26:51,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:26:54,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:26:55,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:26:57,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:26:58,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:01,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:03,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:05,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:07,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:08,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:27:08,088 INFO L93 Difference]: Finished difference Result 1631 states and 1767 transitions. [2024-11-09 01:27:08,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:27:08,089 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-11-09 01:27:08,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:27:08,095 INFO L225 Difference]: With dead ends: 1631 [2024-11-09 01:27:08,095 INFO L226 Difference]: Without dead ends: 1631 [2024-11-09 01:27:08,095 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:27:08,096 INFO L432 NwaCegarLoop]: 849 mSDtfsCounter, 641 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 1627 mSolverCounterSat, 3 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 1854 SdHoareTripleChecker+Invalid, 1647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1627 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.8s IncrementalHoareTripleChecker+Time [2024-11-09 01:27:08,096 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [646 Valid, 1854 Invalid, 1647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1627 Invalid, 17 Unknown, 0 Unchecked, 39.8s Time] [2024-11-09 01:27:08,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2024-11-09 01:27:08,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1263. [2024-11-09 01:27:08,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1263 states, 700 states have (on average 2.105714285714286) internal successors, (1474), 1253 states have internal predecessors, (1474), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 01:27:08,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1263 states to 1263 states and 1498 transitions. [2024-11-09 01:27:08,124 INFO L78 Accepts]: Start accepts. Automaton has 1263 states and 1498 transitions. Word has length 26 [2024-11-09 01:27:08,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:27:08,125 INFO L471 AbstractCegarLoop]: Abstraction has 1263 states and 1498 transitions. [2024-11-09 01:27:08,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:27:08,125 INFO L276 IsEmpty]: Start isEmpty. Operand 1263 states and 1498 transitions. [2024-11-09 01:27:08,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-09 01:27:08,126 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:27:08,126 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:27:08,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 01:27:08,126 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-11-09 01:27:08,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:27:08,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1415174621, now seen corresponding path program 1 times [2024-11-09 01:27:08,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:27:08,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879402788] [2024-11-09 01:27:08,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:08,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:27:08,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:27:08,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:27:08,315 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:27:08,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879402788] [2024-11-09 01:27:08,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879402788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:27:08,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:27:08,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 01:27:08,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182017868] [2024-11-09 01:27:08,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:27:08,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:27:08,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:27:08,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:27:08,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:27:08,317 INFO L87 Difference]: Start difference. First operand 1263 states and 1498 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:27:10,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:12,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:14,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:16,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:18,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:20,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:22,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:24,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:26,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:28,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:30,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:32,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:34,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:36,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:38,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:38,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:27:38,827 INFO L93 Difference]: Finished difference Result 1263 states and 1494 transitions. [2024-11-09 01:27:38,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 01:27:38,828 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2024-11-09 01:27:38,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:27:38,833 INFO L225 Difference]: With dead ends: 1263 [2024-11-09 01:27:38,833 INFO L226 Difference]: Without dead ends: 1263 [2024-11-09 01:27:38,833 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:27:38,834 INFO L432 NwaCegarLoop]: 1042 mSDtfsCounter, 15 mSDsluCounter, 2067 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 6 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 3109 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.5s IncrementalHoareTripleChecker+Time [2024-11-09 01:27:38,834 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 3109 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 429 Invalid, 15 Unknown, 0 Unchecked, 30.5s Time] [2024-11-09 01:27:38,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1263 states. [2024-11-09 01:27:38,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1263 to 1263. [2024-11-09 01:27:38,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1263 states, 700 states have (on average 2.1) internal successors, (1470), 1253 states have internal predecessors, (1470), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 01:27:38,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1263 states to 1263 states and 1494 transitions. [2024-11-09 01:27:38,860 INFO L78 Accepts]: Start accepts. Automaton has 1263 states and 1494 transitions. Word has length 42 [2024-11-09 01:27:38,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:27:38,861 INFO L471 AbstractCegarLoop]: Abstraction has 1263 states and 1494 transitions. [2024-11-09 01:27:38,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:27:38,861 INFO L276 IsEmpty]: Start isEmpty. Operand 1263 states and 1494 transitions. [2024-11-09 01:27:38,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-09 01:27:38,862 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:27:38,862 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:27:38,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 01:27:38,863 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-11-09 01:27:38,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:27:38,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1656314429, now seen corresponding path program 1 times [2024-11-09 01:27:38,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:27:38,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845019853] [2024-11-09 01:27:38,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:38,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:27:38,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:27:39,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:27:39,017 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:27:39,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845019853] [2024-11-09 01:27:39,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845019853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:27:39,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:27:39,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:27:39,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124588648] [2024-11-09 01:27:39,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:27:39,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:27:39,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:27:39,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:27:39,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:27:39,019 INFO L87 Difference]: Start difference. First operand 1263 states and 1494 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:27:41,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:43,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:45,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:47,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:49,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:51,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:53,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:55,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:57,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:57,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:27:57,981 INFO L93 Difference]: Finished difference Result 1305 states and 1536 transitions. [2024-11-09 01:27:57,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:27:57,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2024-11-09 01:27:57,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:27:57,987 INFO L225 Difference]: With dead ends: 1305 [2024-11-09 01:27:57,987 INFO L226 Difference]: Without dead ends: 1305 [2024-11-09 01:27:57,987 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:27:57,988 INFO L432 NwaCegarLoop]: 1057 mSDtfsCounter, 0 mSDsluCounter, 1031 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 0 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2088 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.9s IncrementalHoareTripleChecker+Time [2024-11-09 01:27:57,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2088 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 294 Invalid, 9 Unknown, 0 Unchecked, 18.9s Time] [2024-11-09 01:27:57,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1305 states. [2024-11-09 01:27:58,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1305 to 1305. [2024-11-09 01:27:58,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1305 states, 742 states have (on average 2.0377358490566038) internal successors, (1512), 1295 states have internal predecessors, (1512), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 01:27:58,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1305 states to 1305 states and 1536 transitions. [2024-11-09 01:27:58,015 INFO L78 Accepts]: Start accepts. Automaton has 1305 states and 1536 transitions. Word has length 46 [2024-11-09 01:27:58,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:27:58,015 INFO L471 AbstractCegarLoop]: Abstraction has 1305 states and 1536 transitions. [2024-11-09 01:27:58,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:27:58,016 INFO L276 IsEmpty]: Start isEmpty. Operand 1305 states and 1536 transitions. [2024-11-09 01:27:58,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-09 01:27:58,049 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:27:58,049 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:27:58,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 01:27:58,049 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-11-09 01:27:58,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:27:58,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1508956318, now seen corresponding path program 1 times [2024-11-09 01:27:58,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:27:58,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274121691] [2024-11-09 01:27:58,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:58,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:27:58,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:27:58,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:27:58,707 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:27:58,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274121691] [2024-11-09 01:27:58,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274121691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:27:58,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:27:58,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 01:27:58,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619747578] [2024-11-09 01:27:58,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:27:58,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 01:27:58,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:27:58,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 01:27:58,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:27:58,710 INFO L87 Difference]: Start difference. First operand 1305 states and 1536 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:28:00,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:28:02,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:28:04,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:28:07,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:28:09,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:28:11,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:28:13,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:28:16,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:28:18,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:28:20,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:28:22,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:28:24,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:28:26,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:28:27,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:28:27,038 INFO L93 Difference]: Finished difference Result 1221 states and 1452 transitions. [2024-11-09 01:28:27,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 01:28:27,038 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2024-11-09 01:28:27,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:28:27,042 INFO L225 Difference]: With dead ends: 1221 [2024-11-09 01:28:27,043 INFO L226 Difference]: Without dead ends: 1221 [2024-11-09 01:28:27,043 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:28:27,044 INFO L432 NwaCegarLoop]: 306 mSDtfsCounter, 1062 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 1665 mSolverCounterSat, 93 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1073 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 1771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1665 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.3s IncrementalHoareTripleChecker+Time [2024-11-09 01:28:27,044 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1073 Valid, 583 Invalid, 1771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1665 Invalid, 13 Unknown, 0 Unchecked, 28.3s Time] [2024-11-09 01:28:27,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1221 states. [2024-11-09 01:28:27,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1221 to 1081. [2024-11-09 01:28:27,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1081 states, 602 states have (on average 1.8837209302325582) internal successors, (1134), 1071 states have internal predecessors, (1134), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 01:28:27,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1081 states to 1081 states and 1158 transitions. [2024-11-09 01:28:27,067 INFO L78 Accepts]: Start accepts. Automaton has 1081 states and 1158 transitions. Word has length 49 [2024-11-09 01:28:27,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:28:27,068 INFO L471 AbstractCegarLoop]: Abstraction has 1081 states and 1158 transitions. [2024-11-09 01:28:27,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:28:27,069 INFO L276 IsEmpty]: Start isEmpty. Operand 1081 states and 1158 transitions. [2024-11-09 01:28:27,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-09 01:28:27,070 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:28:27,070 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:28:27,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 01:28:27,071 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-11-09 01:28:27,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:28:27,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1756242758, now seen corresponding path program 1 times [2024-11-09 01:28:27,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:28:27,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473138965] [2024-11-09 01:28:27,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:28:27,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:28:27,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:28:27,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:28:27,510 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:28:27,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473138965] [2024-11-09 01:28:27,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473138965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:28:27,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:28:27,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 01:28:27,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540770599] [2024-11-09 01:28:27,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:28:27,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 01:28:27,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:28:27,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 01:28:27,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:28:27,512 INFO L87 Difference]: Start difference. First operand 1081 states and 1158 transitions. Second operand has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:28:29,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:28:31,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:28:33,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:28:35,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:28:37,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:28:39,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:28:41,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:28:43,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:28:45,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:28:47,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:28:49,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:28:51,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:28:53,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:28:55,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:28:57,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:28:59,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:29:01,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:29:01,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:29:01,883 INFO L93 Difference]: Finished difference Result 1080 states and 1157 transitions. [2024-11-09 01:29:01,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:29:01,884 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2024-11-09 01:29:01,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:29:01,888 INFO L225 Difference]: With dead ends: 1080 [2024-11-09 01:29:01,888 INFO L226 Difference]: Without dead ends: 1080 [2024-11-09 01:29:01,888 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:29:01,889 INFO L432 NwaCegarLoop]: 970 mSDtfsCounter, 2 mSDsluCounter, 1604 mSDsCounter, 0 mSdLazyCounter, 1847 mSolverCounterSat, 1 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2574 SdHoareTripleChecker+Invalid, 1863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1847 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.3s IncrementalHoareTripleChecker+Time [2024-11-09 01:29:01,889 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2574 Invalid, 1863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1847 Invalid, 15 Unknown, 0 Unchecked, 34.3s Time] [2024-11-09 01:29:01,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2024-11-09 01:29:01,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 1080. [2024-11-09 01:29:01,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1080 states, 602 states have (on average 1.8820598006644518) internal successors, (1133), 1070 states have internal predecessors, (1133), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 01:29:01,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 1157 transitions. [2024-11-09 01:29:01,908 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 1157 transitions. Word has length 53 [2024-11-09 01:29:01,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:29:01,908 INFO L471 AbstractCegarLoop]: Abstraction has 1080 states and 1157 transitions. [2024-11-09 01:29:01,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:29:01,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 1157 transitions. [2024-11-09 01:29:01,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-09 01:29:01,909 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:29:01,910 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:29:01,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 01:29:01,910 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr67REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-11-09 01:29:01,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:29:01,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1756242759, now seen corresponding path program 1 times [2024-11-09 01:29:01,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:29:01,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174598552] [2024-11-09 01:29:01,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:29:01,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:29:01,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:29:02,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:29:02,526 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:29:02,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174598552] [2024-11-09 01:29:02,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174598552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:29:02,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:29:02,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 01:29:02,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3783564] [2024-11-09 01:29:02,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:29:02,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 01:29:02,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:29:02,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 01:29:02,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:29:02,528 INFO L87 Difference]: Start difference. First operand 1080 states and 1157 transitions. Second operand has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:29:05,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:29:07,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:29:09,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:29:11,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:29:13,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:29:15,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:29:17,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:29:19,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:29:22,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:29:24,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:29:26,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:29:28,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:29:29,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:29:29,021 INFO L93 Difference]: Finished difference Result 1079 states and 1156 transitions. [2024-11-09 01:29:29,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:29:29,021 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2024-11-09 01:29:29,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:29:29,023 INFO L225 Difference]: With dead ends: 1079 [2024-11-09 01:29:29,023 INFO L226 Difference]: Without dead ends: 1079 [2024-11-09 01:29:29,024 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:29:29,024 INFO L432 NwaCegarLoop]: 970 mSDtfsCounter, 1 mSDsluCounter, 1626 mSDsCounter, 0 mSdLazyCounter, 1826 mSolverCounterSat, 1 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2596 SdHoareTripleChecker+Invalid, 1838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1826 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:29:29,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2596 Invalid, 1838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1826 Invalid, 11 Unknown, 0 Unchecked, 26.4s Time] [2024-11-09 01:29:29,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2024-11-09 01:29:29,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 1079. [2024-11-09 01:29:29,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 601 states have (on average 1.8835274542429286) internal successors, (1132), 1069 states have internal predecessors, (1132), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 01:29:29,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1156 transitions. [2024-11-09 01:29:29,043 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1156 transitions. Word has length 53 [2024-11-09 01:29:29,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:29:29,044 INFO L471 AbstractCegarLoop]: Abstraction has 1079 states and 1156 transitions. [2024-11-09 01:29:29,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:29:29,044 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1156 transitions. [2024-11-09 01:29:29,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-09 01:29:29,045 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:29:29,045 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:29:29,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 01:29:29,046 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-11-09 01:29:29,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:29:29,046 INFO L85 PathProgramCache]: Analyzing trace with hash -2008662068, now seen corresponding path program 1 times [2024-11-09 01:29:29,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:29:29,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093009731] [2024-11-09 01:29:29,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:29:29,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:29:29,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:29:29,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:29:29,373 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:29:29,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093009731] [2024-11-09 01:29:29,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093009731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:29:29,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:29:29,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 01:29:29,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453987258] [2024-11-09 01:29:29,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:29:29,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 01:29:29,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:29:29,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 01:29:29,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 01:29:29,377 INFO L87 Difference]: Start difference. First operand 1079 states and 1156 transitions. Second operand has 7 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:29:30,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:29:33,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:29:35,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:29:37,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:29:39,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:29:41,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:29:43,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:29:46,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:29:48,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:29:50,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:29:52,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:29:54,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:29:56,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:29:57,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:29:57,741 INFO L93 Difference]: Finished difference Result 1089 states and 1172 transitions. [2024-11-09 01:29:57,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 01:29:57,742 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2024-11-09 01:29:57,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:29:57,745 INFO L225 Difference]: With dead ends: 1089 [2024-11-09 01:29:57,746 INFO L226 Difference]: Without dead ends: 1089 [2024-11-09 01:29:57,746 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-09 01:29:57,746 INFO L432 NwaCegarLoop]: 954 mSDtfsCounter, 12 mSDsluCounter, 3137 mSDsCounter, 0 mSdLazyCounter, 2535 mSolverCounterSat, 13 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 4091 SdHoareTripleChecker+Invalid, 2560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2535 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.3s IncrementalHoareTripleChecker+Time [2024-11-09 01:29:57,747 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 4091 Invalid, 2560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2535 Invalid, 12 Unknown, 0 Unchecked, 28.3s Time] [2024-11-09 01:29:57,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2024-11-09 01:29:57,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 1084. [2024-11-09 01:29:57,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 605 states have (on average 1.8809917355371901) internal successors, (1138), 1073 states have internal predecessors, (1138), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (17), 8 states have call predecessors, (17), 11 states have call successors, (17) [2024-11-09 01:29:57,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1168 transitions. [2024-11-09 01:29:57,770 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1168 transitions. Word has length 59 [2024-11-09 01:29:57,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:29:57,771 INFO L471 AbstractCegarLoop]: Abstraction has 1084 states and 1168 transitions. [2024-11-09 01:29:57,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:29:57,771 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1168 transitions. [2024-11-09 01:29:57,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-09 01:29:57,772 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:29:57,772 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:29:57,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 01:29:57,773 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-11-09 01:29:57,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:29:57,773 INFO L85 PathProgramCache]: Analyzing trace with hash -2008662067, now seen corresponding path program 1 times [2024-11-09 01:29:57,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:29:57,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403304810] [2024-11-09 01:29:57,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:29:57,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:29:57,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:29:58,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:29:58,556 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:29:58,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403304810] [2024-11-09 01:29:58,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403304810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:29:58,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:29:58,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 01:29:58,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508539865] [2024-11-09 01:29:58,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:29:58,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 01:29:58,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:29:58,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 01:29:58,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:29:58,559 INFO L87 Difference]: Start difference. First operand 1084 states and 1168 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:30:00,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:30:03,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:30:05,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:30:07,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:30:09,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:30:11,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:30:14,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:30:16,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:30:18,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:30:20,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:30:22,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:30:24,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:30:26,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:30:27,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:30:27,633 INFO L93 Difference]: Finished difference Result 1084 states and 1167 transitions. [2024-11-09 01:30:27,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:30:27,634 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2024-11-09 01:30:27,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:30:27,637 INFO L225 Difference]: With dead ends: 1084 [2024-11-09 01:30:27,637 INFO L226 Difference]: Without dead ends: 1084 [2024-11-09 01:30:27,638 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 01:30:27,639 INFO L432 NwaCegarLoop]: 960 mSDtfsCounter, 8 mSDsluCounter, 2381 mSDsCounter, 0 mSdLazyCounter, 2172 mSolverCounterSat, 11 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 3341 SdHoareTripleChecker+Invalid, 2195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2172 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.0s IncrementalHoareTripleChecker+Time [2024-11-09 01:30:27,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 3341 Invalid, 2195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2172 Invalid, 12 Unknown, 0 Unchecked, 29.0s Time] [2024-11-09 01:30:27,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1084 states. [2024-11-09 01:30:27,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1084 to 1084. [2024-11-09 01:30:27,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 605 states have (on average 1.8793388429752067) internal successors, (1137), 1073 states have internal predecessors, (1137), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (17), 8 states have call predecessors, (17), 11 states have call successors, (17) [2024-11-09 01:30:27,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1167 transitions. [2024-11-09 01:30:27,658 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1167 transitions. Word has length 59 [2024-11-09 01:30:27,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:30:27,659 INFO L471 AbstractCegarLoop]: Abstraction has 1084 states and 1167 transitions. [2024-11-09 01:30:27,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:30:27,659 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1167 transitions. [2024-11-09 01:30:27,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-09 01:30:27,660 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:30:27,660 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:30:27,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 01:30:27,660 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-11-09 01:30:27,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:30:27,661 INFO L85 PathProgramCache]: Analyzing trace with hash -2108502258, now seen corresponding path program 1 times [2024-11-09 01:30:27,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:30:27,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665826250] [2024-11-09 01:30:27,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:30:27,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:30:27,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:30:28,475 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:30:28,476 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:30:28,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665826250] [2024-11-09 01:30:28,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665826250] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:30:28,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045458638] [2024-11-09 01:30:28,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:30:28,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:30:28,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dce4b82-dad6-479f-bb16-74d8cf28bd25/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:30:28,479 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dce4b82-dad6-479f-bb16-74d8cf28bd25/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:30:28,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dce4b82-dad6-479f-bb16-74d8cf28bd25/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 01:30:28,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:30:28,776 INFO L255 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 01:30:28,787 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:30:28,943 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-09 01:30:28,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-09 01:30:28,971 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-09 01:30:29,053 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-09 01:30:29,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-09 01:30:29,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-09 01:30:29,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:30:29,106 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:30:29,190 INFO L349 Elim1Store]: treesize reduction 5, result has 70.6 percent of original size [2024-11-09 01:30:29,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2024-11-09 01:30:29,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045458638] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:30:29,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [993981734] [2024-11-09 01:30:29,283 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2024-11-09 01:30:29,284 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:30:29,289 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:30:29,295 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:30:29,296 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:30:36,249 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 128 for LOIs [2024-11-09 01:30:36,551 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:33:12,410 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '37852#(and (or (and (exists ((|v_#memory_$Pointer$.offset_537| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_538| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_540| (Array Int (Array Int Int)))) (and (= |v_#memory_$Pointer$.offset_538| (store |v_#memory_$Pointer$.offset_537| |ULTIMATE.start_main_~user~0#1.base| (store (select |v_#memory_$Pointer$.offset_537| |ULTIMATE.start_main_~user~0#1.base|) 36 (select (select |v_#memory_$Pointer$.offset_538| |ULTIMATE.start_main_~user~0#1.base|) 36)))) (= |v_#memory_$Pointer$.offset_540| (store |v_#memory_$Pointer$.offset_538| |ULTIMATE.start_main_~user~0#1.base| (store (store (select |v_#memory_$Pointer$.offset_538| |ULTIMATE.start_main_~user~0#1.base|) 28 0) 32 (select (select |v_#memory_$Pointer$.offset_540| |ULTIMATE.start_main_~user~0#1.base|) 32)))))) (exists ((|v_old(#memory_int)_AFTER_CALL_3| (Array Int (Array Int Int))) (|v_#memory_int_694| (Array Int (Array Int Int))) (|v_#memory_int_695| (Array Int (Array Int Int))) (|v_#memory_int_690| (Array Int (Array Int Int))) (|v_#memory_int_692| (Array Int (Array Int Int)))) (and (= (store |v_#memory_int_695| |ULTIMATE.start_main_~user~0#1.base| (store (select |v_#memory_int_695| |ULTIMATE.start_main_~user~0#1.base|) 8 (select (select |v_old(#memory_int)_AFTER_CALL_3| |ULTIMATE.start_main_~user~0#1.base|) 8))) |v_old(#memory_int)_AFTER_CALL_3|) (= (store |v_#memory_int_692| |ULTIMATE.start_main_~user~0#1.base| (store (store (select |v_#memory_int_692| |ULTIMATE.start_main_~user~0#1.base|) 32 4) 16 (select (select |v_#memory_int_694| |ULTIMATE.start_main_~user~0#1.base|) 16))) |v_#memory_int_694|) (= (store |v_#memory_int_694| |ULTIMATE.start_main_~user~0#1.base| (store (select |v_#memory_int_694| |ULTIMATE.start_main_~user~0#1.base|) 12 (select (select |v_#memory_int_695| |ULTIMATE.start_main_~user~0#1.base|) 12))) |v_#memory_int_695|) (= (store |v_#memory_int_690| |ULTIMATE.start_main_~user~0#1.base| (store (store (select |v_#memory_int_690| |ULTIMATE.start_main_~user~0#1.base|) 36 |ULTIMATE.start_main_~_ha_hashv~0#1|) 28 (select (select |v_#memory_int_692| |ULTIMATE.start_main_~user~0#1.base|) 28))) |v_#memory_int_692|))) (exists ((|v_#Ultimate.C_memset_#t~loopctr370_18| Int)) (and (<= 44 (mod |v_#Ultimate.C_memset_#t~loopctr370_18| 4294967296)) (<= 0 |v_#Ultimate.C_memset_#t~loopctr370_18|))) (exists ((|v_old(#memory_$Pointer$.base)_AFTER_CALL_3| (Array Int (Array Int Int))) (|v_#length_1023| (Array Int Int)) (|v_#memory_$Pointer$.base_544| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_542| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_541| (Array Int (Array Int Int))) (|v_#valid_1044| (Array Int Int))) (and (not (= (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_3| |ULTIMATE.start_main_~user~0#1.base|) 8) 0)) (= (select |v_#valid_1044| (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_3| |ULTIMATE.start_main_~user~0#1.base|) 8)) 0) (<= 40 (select |v_#length_1023| |ULTIMATE.start_main_~user~0#1.base|)) (<= (+ (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_3| |ULTIMATE.start_main_~user~0#1.base|) 8) 1) |#StackHeapBarrier|) (= (select |v_#valid_1044| |ULTIMATE.start_main_~user~0#1.base|) 1) (= |v_old(#memory_$Pointer$.base)_AFTER_CALL_3| (store |v_#memory_$Pointer$.base_544| |ULTIMATE.start_main_~user~0#1.base| (store (store (store (select |v_#memory_$Pointer$.base_544| |ULTIMATE.start_main_~user~0#1.base|) 16 0) 12 0) 8 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_3| |ULTIMATE.start_main_~user~0#1.base|) 8)))) (= (store |v_#valid_1044| (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_3| |ULTIMATE.start_main_~user~0#1.base|) 8) 1) |#valid|) (= (store |v_#length_1023| (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_3| |ULTIMATE.start_main_~user~0#1.base|) 8) 44) |#length|) (= (store |v_#memory_$Pointer$.base_541| |ULTIMATE.start_main_~user~0#1.base| (store (select |v_#memory_$Pointer$.base_541| |ULTIMATE.start_main_~user~0#1.base|) 36 (select (select |v_#memory_$Pointer$.base_542| |ULTIMATE.start_main_~user~0#1.base|) 36))) |v_#memory_$Pointer$.base_542|) (= (store |v_#memory_$Pointer$.base_542| |ULTIMATE.start_main_~user~0#1.base| (store (store (select |v_#memory_$Pointer$.base_542| |ULTIMATE.start_main_~user~0#1.base|) 28 |ULTIMATE.start_main_~user~0#1.base|) 32 (select (select |v_#memory_$Pointer$.base_544| |ULTIMATE.start_main_~user~0#1.base|) 32))) |v_#memory_$Pointer$.base_544|)))) (and (exists ((|v_old(#memory_$Pointer$.base)_AFTER_CALL_2| (Array Int (Array Int Int))) (|v_#length_1023| (Array Int Int)) (|v_#memory_$Pointer$.base_544| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_542| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_541| (Array Int (Array Int Int))) (|v_#valid_1044| (Array Int Int))) (and (= (store |v_#length_1023| (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_2| |ULTIMATE.start_main_~user~0#1.base|) 8) 44) |#length|) (= |v_old(#memory_$Pointer$.base)_AFTER_CALL_2| (store |v_#memory_$Pointer$.base_544| |ULTIMATE.start_main_~user~0#1.base| (store (store (store (select |v_#memory_$Pointer$.base_544| |ULTIMATE.start_main_~user~0#1.base|) 16 0) 12 0) 8 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_2| |ULTIMATE.start_main_~user~0#1.base|) 8)))) (<= (+ (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_2| |ULTIMATE.start_main_~user~0#1.base|) 8) 1) |#StackHeapBarrier|) (<= 40 (select |v_#length_1023| |ULTIMATE.start_main_~user~0#1.base|)) (= (select |v_#valid_1044| (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_2| |ULTIMATE.start_main_~user~0#1.base|) 8)) 0) (= (select |v_#valid_1044| |ULTIMATE.start_main_~user~0#1.base|) 1) (= (store |v_#valid_1044| (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_2| |ULTIMATE.start_main_~user~0#1.base|) 8) 1) |#valid|) (not (= (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_2| |ULTIMATE.start_main_~user~0#1.base|) 8) 0)) (= (store |v_#memory_$Pointer$.base_541| |ULTIMATE.start_main_~user~0#1.base| (store (select |v_#memory_$Pointer$.base_541| |ULTIMATE.start_main_~user~0#1.base|) 36 (select (select |v_#memory_$Pointer$.base_542| |ULTIMATE.start_main_~user~0#1.base|) 36))) |v_#memory_$Pointer$.base_542|) (= (store |v_#memory_$Pointer$.base_542| |ULTIMATE.start_main_~user~0#1.base| (store (store (select |v_#memory_$Pointer$.base_542| |ULTIMATE.start_main_~user~0#1.base|) 28 |ULTIMATE.start_main_~user~0#1.base|) 32 (select (select |v_#memory_$Pointer$.base_544| |ULTIMATE.start_main_~user~0#1.base|) 32))) |v_#memory_$Pointer$.base_544|))) (exists ((|v_#memory_$Pointer$.offset_537| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_538| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_540| (Array Int (Array Int Int)))) (and (= |v_#memory_$Pointer$.offset_538| (store |v_#memory_$Pointer$.offset_537| |ULTIMATE.start_main_~user~0#1.base| (store (select |v_#memory_$Pointer$.offset_537| |ULTIMATE.start_main_~user~0#1.base|) 36 (select (select |v_#memory_$Pointer$.offset_538| |ULTIMATE.start_main_~user~0#1.base|) 36)))) (= |v_#memory_$Pointer$.offset_540| (store |v_#memory_$Pointer$.offset_538| |ULTIMATE.start_main_~user~0#1.base| (store (store (select |v_#memory_$Pointer$.offset_538| |ULTIMATE.start_main_~user~0#1.base|) 28 0) 32 (select (select |v_#memory_$Pointer$.offset_540| |ULTIMATE.start_main_~user~0#1.base|) 32)))))) (exists ((|v_old(#memory_int)_AFTER_CALL_2| (Array Int (Array Int Int))) (|v_#memory_int_694| (Array Int (Array Int Int))) (|v_#memory_int_695| (Array Int (Array Int Int))) (|v_#memory_int_690| (Array Int (Array Int Int))) (|v_#memory_int_692| (Array Int (Array Int Int)))) (and (= (store |v_#memory_int_692| |ULTIMATE.start_main_~user~0#1.base| (store (store (select |v_#memory_int_692| |ULTIMATE.start_main_~user~0#1.base|) 32 4) 16 (select (select |v_#memory_int_694| |ULTIMATE.start_main_~user~0#1.base|) 16))) |v_#memory_int_694|) (= (store |v_#memory_int_695| |ULTIMATE.start_main_~user~0#1.base| (store (select |v_#memory_int_695| |ULTIMATE.start_main_~user~0#1.base|) 8 (select (select |v_old(#memory_int)_AFTER_CALL_2| |ULTIMATE.start_main_~user~0#1.base|) 8))) |v_old(#memory_int)_AFTER_CALL_2|) (= (store |v_#memory_int_694| |ULTIMATE.start_main_~user~0#1.base| (store (select |v_#memory_int_694| |ULTIMATE.start_main_~user~0#1.base|) 12 (select (select |v_#memory_int_695| |ULTIMATE.start_main_~user~0#1.base|) 12))) |v_#memory_int_695|) (= (store |v_#memory_int_690| |ULTIMATE.start_main_~user~0#1.base| (store (store (select |v_#memory_int_690| |ULTIMATE.start_main_~user~0#1.base|) 36 |ULTIMATE.start_main_~_ha_hashv~0#1|) 28 (select (select |v_#memory_int_692| |ULTIMATE.start_main_~user~0#1.base|) 28))) |v_#memory_int_692|))) (exists ((|v_#Ultimate.C_memset_#t~loopctr370_18| Int)) (and (<= 44 (mod |v_#Ultimate.C_memset_#t~loopctr370_18| 4294967296)) (<= 0 |v_#Ultimate.C_memset_#t~loopctr370_18|))))) (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_#t~mem52#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~user~0#1.base|) 8)) (= |ULTIMATE.start_main_~i~0#1| 0) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~user~0#1.base|) 8)) 1)) (= |ULTIMATE.start_main_~altusers~0#1.base| 0) (= |ULTIMATE.start_main_~altusers~0#1.offset| 0) (= |ULTIMATE.start_main_~user~0#1.offset| 0) (<= 2 |ULTIMATE.start_main_~#j~0#1.base|) (= |ULTIMATE.start_main_~#j~0#1.offset| 0) (= ~count_int_int~0 0))' at error location [2024-11-09 01:33:12,411 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:33:12,411 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 01:33:12,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 13 [2024-11-09 01:33:12,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547406231] [2024-11-09 01:33:12,411 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 01:33:12,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 01:33:12,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:33:12,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 01:33:12,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=1763, Unknown=87, NotChecked=0, Total=2070 [2024-11-09 01:33:12,414 INFO L87 Difference]: Start difference. First operand 1084 states and 1167 transitions. Second operand has 14 states, 12 states have (on average 5.833333333333333) internal successors, (70), 13 states have internal predecessors, (70), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 01:33:14,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:33:20,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:33:22,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:33:24,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:33:25,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:33:27,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:33:29,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:33:31,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:33:33,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:33:35,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:33:37,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:33:41,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:33:43,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:33:45,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:33:47,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:33:50,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:33:52,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:33:54,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:33:56,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:33:58,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:34:00,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:34:02,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:34:04,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:34:06,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:34:08,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:34:10,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:34:12,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:34:19,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:34:19,239 INFO L93 Difference]: Finished difference Result 1083 states and 1166 transitions. [2024-11-09 01:34:19,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 01:34:19,239 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.833333333333333) internal successors, (70), 13 states have internal predecessors, (70), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 60 [2024-11-09 01:34:19,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:34:19,244 INFO L225 Difference]: With dead ends: 1083 [2024-11-09 01:34:19,244 INFO L226 Difference]: Without dead ends: 1083 [2024-11-09 01:34:19,246 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 90 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 825 ImplicationChecksByTransitivity, 156.6s TimeCoverageRelationStatistics Valid=282, Invalid=2387, Unknown=87, NotChecked=0, Total=2756 [2024-11-09 01:34:19,247 INFO L432 NwaCegarLoop]: 526 mSDtfsCounter, 1051 mSDsluCounter, 4526 mSDsCounter, 0 mSdLazyCounter, 5974 mSolverCounterSat, 27 mSolverCounterUnsat, 24 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 65.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1066 SdHoareTripleChecker+Valid, 5052 SdHoareTripleChecker+Invalid, 6025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 5974 IncrementalHoareTripleChecker+Invalid, 24 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.0s IncrementalHoareTripleChecker+Time [2024-11-09 01:34:19,247 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1066 Valid, 5052 Invalid, 6025 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [27 Valid, 5974 Invalid, 24 Unknown, 0 Unchecked, 66.0s Time] [2024-11-09 01:34:19,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2024-11-09 01:34:19,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 1083. [2024-11-09 01:34:19,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 605 states have (on average 1.877685950413223) internal successors, (1136), 1072 states have internal predecessors, (1136), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (17), 8 states have call predecessors, (17), 11 states have call successors, (17) [2024-11-09 01:34:19,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1166 transitions. [2024-11-09 01:34:19,273 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1166 transitions. Word has length 60 [2024-11-09 01:34:19,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:34:19,273 INFO L471 AbstractCegarLoop]: Abstraction has 1083 states and 1166 transitions. [2024-11-09 01:34:19,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.833333333333333) internal successors, (70), 13 states have internal predecessors, (70), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 01:34:19,274 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1166 transitions. [2024-11-09 01:34:19,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-09 01:34:19,275 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:34:19,275 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:34:19,305 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dce4b82-dad6-479f-bb16-74d8cf28bd25/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 01:34:19,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dce4b82-dad6-479f-bb16-74d8cf28bd25/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-09 01:34:19,479 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-11-09 01:34:19,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:34:19,480 INFO L85 PathProgramCache]: Analyzing trace with hash -2108502257, now seen corresponding path program 1 times [2024-11-09 01:34:19,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:34:19,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703279029] [2024-11-09 01:34:19,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:34:19,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:34:19,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:34:21,062 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:34:21,063 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:34:21,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703279029] [2024-11-09 01:34:21,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703279029] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:34:21,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1002500837] [2024-11-09 01:34:21,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:34:21,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:34:21,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dce4b82-dad6-479f-bb16-74d8cf28bd25/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:34:21,066 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dce4b82-dad6-479f-bb16-74d8cf28bd25/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:34:21,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dce4b82-dad6-479f-bb16-74d8cf28bd25/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 01:34:21,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:34:21,438 INFO L255 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-09 01:34:21,444 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:34:21,753 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-09 01:34:21,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-09 01:34:21,788 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 01:34:21,887 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-09 01:34:21,896 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-09 01:34:22,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-09 01:34:22,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-09 01:34:22,539 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-09 01:34:22,539 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-09 01:34:22,559 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-09 01:34:22,670 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-09 01:34:22,683 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-09 01:34:22,761 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:34:22,761 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:34:23,054 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_663 (Array Int Int)) (v_ArrVal_664 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_664) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 20) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_663) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_664 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_664) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 16))))) is different from false [2024-11-09 01:34:23,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1002500837] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:34:23,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [955000846] [2024-11-09 01:34:23,065 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2024-11-09 01:34:23,065 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:34:23,066 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:34:23,066 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:34:23,066 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:34:29,924 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 128 for LOIs [2024-11-09 01:34:30,341 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:37:24,576 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '40273#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~i~0#1| 0) (or (< (+ 16 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~user~0#1.base|) 8)) 0) (< (select |#length| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~user~0#1.base|) 8)) (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~user~0#1.base|) 8) 20))) (= |ULTIMATE.start_main_~altusers~0#1.base| 0) (= |ULTIMATE.start_main_~altusers~0#1.offset| 0) (= |ULTIMATE.start_main_~user~0#1.offset| 0) (<= 2 |ULTIMATE.start_main_~#j~0#1.base|) (= |ULTIMATE.start_main_~#j~0#1.offset| 0) (= ~count_int_int~0 0) (or (and (exists ((|v_#memory_int_713| (Array Int (Array Int Int))) (|v_#memory_int_712| (Array Int (Array Int Int))) (|v_old(#memory_int)_AFTER_CALL_5| (Array Int (Array Int Int))) (|v_#memory_int_710| (Array Int (Array Int Int))) (|v_#memory_int_708| (Array Int (Array Int Int)))) (and (= (store |v_#memory_int_713| |ULTIMATE.start_main_~user~0#1.base| (store (select |v_#memory_int_713| |ULTIMATE.start_main_~user~0#1.base|) 8 (select (select |v_old(#memory_int)_AFTER_CALL_5| |ULTIMATE.start_main_~user~0#1.base|) 8))) |v_old(#memory_int)_AFTER_CALL_5|) (= |v_#memory_int_713| (store |v_#memory_int_712| |ULTIMATE.start_main_~user~0#1.base| (store (select |v_#memory_int_712| |ULTIMATE.start_main_~user~0#1.base|) 12 (select (select |v_#memory_int_713| |ULTIMATE.start_main_~user~0#1.base|) 12)))) (= (store |v_#memory_int_710| |ULTIMATE.start_main_~user~0#1.base| (store (store (select |v_#memory_int_710| |ULTIMATE.start_main_~user~0#1.base|) 32 4) 16 (select (select |v_#memory_int_712| |ULTIMATE.start_main_~user~0#1.base|) 16))) |v_#memory_int_712|) (= |v_#memory_int_710| (store |v_#memory_int_708| |ULTIMATE.start_main_~user~0#1.base| (store (store (select |v_#memory_int_708| |ULTIMATE.start_main_~user~0#1.base|) 36 |ULTIMATE.start_main_~_ha_hashv~0#1|) 28 (select (select |v_#memory_int_710| |ULTIMATE.start_main_~user~0#1.base|) 28)))))) (exists ((|v_#valid_1048| (Array Int Int)) (|v_old(#memory_$Pointer$.base)_AFTER_CALL_5| (Array Int (Array Int Int))) (|v_#length_1027| (Array Int Int)) (|v_#memory_$Pointer$.base_566| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_564| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_563| (Array Int (Array Int Int)))) (and (not (= (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_5| |ULTIMATE.start_main_~user~0#1.base|) 8) 0)) (= (store |v_#memory_$Pointer$.base_564| |ULTIMATE.start_main_~user~0#1.base| (store (store (select |v_#memory_$Pointer$.base_564| |ULTIMATE.start_main_~user~0#1.base|) 28 |ULTIMATE.start_main_~user~0#1.base|) 32 (select (select |v_#memory_$Pointer$.base_566| |ULTIMATE.start_main_~user~0#1.base|) 32))) |v_#memory_$Pointer$.base_566|) (= (store |v_#memory_$Pointer$.base_563| |ULTIMATE.start_main_~user~0#1.base| (store (select |v_#memory_$Pointer$.base_563| |ULTIMATE.start_main_~user~0#1.base|) 36 (select (select |v_#memory_$Pointer$.base_564| |ULTIMATE.start_main_~user~0#1.base|) 36))) |v_#memory_$Pointer$.base_564|) (<= (+ (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_5| |ULTIMATE.start_main_~user~0#1.base|) 8) 1) |#StackHeapBarrier|) (= (select |v_#valid_1048| |ULTIMATE.start_main_~user~0#1.base|) 1) (= |#length| (store |v_#length_1027| (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_5| |ULTIMATE.start_main_~user~0#1.base|) 8) 44)) (= (select |v_#valid_1048| (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_5| |ULTIMATE.start_main_~user~0#1.base|) 8)) 0) (= |#valid| (store |v_#valid_1048| (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_5| |ULTIMATE.start_main_~user~0#1.base|) 8) 1)) (= |v_old(#memory_$Pointer$.base)_AFTER_CALL_5| (store |v_#memory_$Pointer$.base_566| |ULTIMATE.start_main_~user~0#1.base| (store (store (store (select |v_#memory_$Pointer$.base_566| |ULTIMATE.start_main_~user~0#1.base|) 16 0) 12 0) 8 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_5| |ULTIMATE.start_main_~user~0#1.base|) 8)))) (<= 40 (select |v_#length_1027| |ULTIMATE.start_main_~user~0#1.base|)))) (exists ((|v_#Ultimate.C_memset_#t~loopctr370_30| Int)) (and (<= 1 |v_#Ultimate.C_memset_#t~loopctr370_30|) (<= 44 (mod |v_#Ultimate.C_memset_#t~loopctr370_30| 4294967296)))) (exists ((|v_#memory_$Pointer$.offset_559| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_560| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_562| (Array Int (Array Int Int)))) (and (= |v_#memory_$Pointer$.offset_560| (store |v_#memory_$Pointer$.offset_559| |ULTIMATE.start_main_~user~0#1.base| (store (select |v_#memory_$Pointer$.offset_559| |ULTIMATE.start_main_~user~0#1.base|) 36 (select (select |v_#memory_$Pointer$.offset_560| |ULTIMATE.start_main_~user~0#1.base|) 36)))) (= |v_#memory_$Pointer$.offset_562| (store |v_#memory_$Pointer$.offset_560| |ULTIMATE.start_main_~user~0#1.base| (store (store (select |v_#memory_$Pointer$.offset_560| |ULTIMATE.start_main_~user~0#1.base|) 28 0) 32 (select (select |v_#memory_$Pointer$.offset_562| |ULTIMATE.start_main_~user~0#1.base|) 32))))))) (and (exists ((|v_#valid_1048| (Array Int Int)) (|v_old(#memory_$Pointer$.base)_AFTER_CALL_6| (Array Int (Array Int Int))) (|v_#length_1027| (Array Int Int)) (|v_#memory_$Pointer$.base_566| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_564| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_563| (Array Int (Array Int Int)))) (and (<= (+ (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_6| |ULTIMATE.start_main_~user~0#1.base|) 8) 1) |#StackHeapBarrier|) (= (store |v_#memory_$Pointer$.base_564| |ULTIMATE.start_main_~user~0#1.base| (store (store (select |v_#memory_$Pointer$.base_564| |ULTIMATE.start_main_~user~0#1.base|) 28 |ULTIMATE.start_main_~user~0#1.base|) 32 (select (select |v_#memory_$Pointer$.base_566| |ULTIMATE.start_main_~user~0#1.base|) 32))) |v_#memory_$Pointer$.base_566|) (= (store |v_#memory_$Pointer$.base_563| |ULTIMATE.start_main_~user~0#1.base| (store (select |v_#memory_$Pointer$.base_563| |ULTIMATE.start_main_~user~0#1.base|) 36 (select (select |v_#memory_$Pointer$.base_564| |ULTIMATE.start_main_~user~0#1.base|) 36))) |v_#memory_$Pointer$.base_564|) (= (store |v_#valid_1048| (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_6| |ULTIMATE.start_main_~user~0#1.base|) 8) 1) |#valid|) (= (select |v_#valid_1048| |ULTIMATE.start_main_~user~0#1.base|) 1) (= |v_old(#memory_$Pointer$.base)_AFTER_CALL_6| (store |v_#memory_$Pointer$.base_566| |ULTIMATE.start_main_~user~0#1.base| (store (store (store (select |v_#memory_$Pointer$.base_566| |ULTIMATE.start_main_~user~0#1.base|) 16 0) 12 0) 8 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_6| |ULTIMATE.start_main_~user~0#1.base|) 8)))) (= (store |v_#length_1027| (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_6| |ULTIMATE.start_main_~user~0#1.base|) 8) 44) |#length|) (= (select |v_#valid_1048| (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_6| |ULTIMATE.start_main_~user~0#1.base|) 8)) 0) (not (= (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_6| |ULTIMATE.start_main_~user~0#1.base|) 8) 0)) (<= 40 (select |v_#length_1027| |ULTIMATE.start_main_~user~0#1.base|)))) (exists ((|v_#memory_int_713| (Array Int (Array Int Int))) (|v_#memory_int_712| (Array Int (Array Int Int))) (|v_#memory_int_710| (Array Int (Array Int Int))) (|v_old(#memory_int)_AFTER_CALL_6| (Array Int (Array Int Int))) (|v_#memory_int_708| (Array Int (Array Int Int)))) (and (= |v_#memory_int_713| (store |v_#memory_int_712| |ULTIMATE.start_main_~user~0#1.base| (store (select |v_#memory_int_712| |ULTIMATE.start_main_~user~0#1.base|) 12 (select (select |v_#memory_int_713| |ULTIMATE.start_main_~user~0#1.base|) 12)))) (= (store |v_#memory_int_710| |ULTIMATE.start_main_~user~0#1.base| (store (store (select |v_#memory_int_710| |ULTIMATE.start_main_~user~0#1.base|) 32 4) 16 (select (select |v_#memory_int_712| |ULTIMATE.start_main_~user~0#1.base|) 16))) |v_#memory_int_712|) (= (store |v_#memory_int_713| |ULTIMATE.start_main_~user~0#1.base| (store (select |v_#memory_int_713| |ULTIMATE.start_main_~user~0#1.base|) 8 (select (select |v_old(#memory_int)_AFTER_CALL_6| |ULTIMATE.start_main_~user~0#1.base|) 8))) |v_old(#memory_int)_AFTER_CALL_6|) (= |v_#memory_int_710| (store |v_#memory_int_708| |ULTIMATE.start_main_~user~0#1.base| (store (store (select |v_#memory_int_708| |ULTIMATE.start_main_~user~0#1.base|) 36 |ULTIMATE.start_main_~_ha_hashv~0#1|) 28 (select (select |v_#memory_int_710| |ULTIMATE.start_main_~user~0#1.base|) 28)))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr370_30| Int)) (and (<= 0 |v_#Ultimate.C_memset_#t~loopctr370_30|) (<= 44 (mod |v_#Ultimate.C_memset_#t~loopctr370_30| 4294967296)))) (exists ((|v_#memory_$Pointer$.offset_559| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_560| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_562| (Array Int (Array Int Int)))) (and (= |v_#memory_$Pointer$.offset_560| (store |v_#memory_$Pointer$.offset_559| |ULTIMATE.start_main_~user~0#1.base| (store (select |v_#memory_$Pointer$.offset_559| |ULTIMATE.start_main_~user~0#1.base|) 36 (select (select |v_#memory_$Pointer$.offset_560| |ULTIMATE.start_main_~user~0#1.base|) 36)))) (= |v_#memory_$Pointer$.offset_562| (store |v_#memory_$Pointer$.offset_560| |ULTIMATE.start_main_~user~0#1.base| (store (store (select |v_#memory_$Pointer$.offset_560| |ULTIMATE.start_main_~user~0#1.base|) 28 0) 32 (select (select |v_#memory_$Pointer$.offset_562| |ULTIMATE.start_main_~user~0#1.base|) 32)))))))))' at error location [2024-11-09 01:37:24,576 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:37:24,576 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 01:37:24,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 17 [2024-11-09 01:37:24,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757870898] [2024-11-09 01:37:24,577 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 01:37:24,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 01:37:24,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:37:24,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 01:37:24,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=248, Invalid=2222, Unknown=84, NotChecked=98, Total=2652 [2024-11-09 01:37:24,580 INFO L87 Difference]: Start difference. First operand 1083 states and 1166 transitions. Second operand has 18 states, 15 states have (on average 5.266666666666667) internal successors, (79), 18 states have internal predecessors, (79), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 01:37:26,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:37:28,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:37:30,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:37:32,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:37:34,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:37:36,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:37:38,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:37:40,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:37:42,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:37:49,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:37:51,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:37:53,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:37:56,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:37:58,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:38:00,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:38:05,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:38:07,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:38:09,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:38:11,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:38:13,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:38:15,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:38:17,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:38:19,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:38:21,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:38:23,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:38:25,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:38:27,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:38:29,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:38:31,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:38:33,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:38:35,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:38:37,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:38:39,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:38:41,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:38:43,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:38:45,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:38:47,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:38:49,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:38:51,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:38:53,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:38:55,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:38:57,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []