./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0830202d-bd7e-43bf-84d6-4b7e3111f3ef/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0830202d-bd7e-43bf-84d6-4b7e3111f3ef/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_0830202d-bd7e-43bf-84d6-4b7e3111f3ef/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0830202d-bd7e-43bf-84d6-4b7e3111f3ef/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0830202d-bd7e-43bf-84d6-4b7e3111f3ef/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_0830202d-bd7e-43bf-84d6-4b7e3111f3ef/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 f4a8b24485e53fece96b44fdc12e6f161e1bbffda2cd597a930f4925e148dc01 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:59:28,676 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:59:28,769 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0830202d-bd7e-43bf-84d6-4b7e3111f3ef/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2024-11-09 06:59:28,776 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:59:28,777 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:59:28,815 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:59:28,816 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:59:28,816 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:59:28,817 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:59:28,818 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:59:28,818 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:59:28,819 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:59:28,819 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:59:28,819 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:59:28,820 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:59:28,822 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:59:28,822 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:59:28,823 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:59:28,823 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:59:28,823 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:59:28,824 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:59:28,828 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:59:28,829 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 06:59:28,829 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 06:59:28,829 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:59:28,830 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:59:28,830 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:59:28,830 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:59:28,830 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:59:28,831 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 06:59:28,831 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 06:59:28,831 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 06:59:28,831 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:59:28,832 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 06:59:28,834 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:59:28,834 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:59:28,834 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:59:28,835 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:59:28,835 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:59:28,835 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:59:28,835 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:59:28,836 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:59:28,836 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:59:28,836 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:59:28,837 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:59:28,837 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:59:28,837 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:59:28,838 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:59:28,838 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:59:28,838 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_0830202d-bd7e-43bf-84d6-4b7e3111f3ef/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0830202d-bd7e-43bf-84d6-4b7e3111f3ef/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4a8b24485e53fece96b44fdc12e6f161e1bbffda2cd597a930f4925e148dc01 [2024-11-09 06:59:29,078 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:59:29,111 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:59:29,116 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:59:29,118 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:59:29,119 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:59:29,120 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0830202d-bd7e-43bf-84d6-4b7e3111f3ef/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-1.i Unable to find full path for "g++" [2024-11-09 06:59:31,092 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:59:31,494 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:59:31,496 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0830202d-bd7e-43bf-84d6-4b7e3111f3ef/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-1.i [2024-11-09 06:59:31,524 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0830202d-bd7e-43bf-84d6-4b7e3111f3ef/bin/utaipan-verify-YMUCfTKeje/data/7d17f924f/83d6dc0ba5d44d3bb01d9e1caafee4e8/FLAGcd5591112 [2024-11-09 06:59:31,544 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0830202d-bd7e-43bf-84d6-4b7e3111f3ef/bin/utaipan-verify-YMUCfTKeje/data/7d17f924f/83d6dc0ba5d44d3bb01d9e1caafee4e8 [2024-11-09 06:59:31,547 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:59:31,549 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:59:31,551 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:59:31,551 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:59:31,557 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:59:31,558 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:59:31" (1/1) ... [2024-11-09 06:59:31,559 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12c3061e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:59:31, skipping insertion in model container [2024-11-09 06:59:31,559 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:59:31" (1/1) ... [2024-11-09 06:59:31,645 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:59:32,511 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 06:59:32,545 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 06:59:32,551 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 06:59:32,564 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 06:59:32,578 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 06:59:32,622 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 06:59:32,622 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 06:59:32,627 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 06:59:32,628 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 06:59:32,635 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:59:32,650 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:59:32,904 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:59:32,957 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:59:32,958 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:59:32 WrapperNode [2024-11-09 06:59:32,958 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:59:32,960 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:59:32,960 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:59:32,960 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:59:32,968 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:59:32" (1/1) ... [2024-11-09 06:59:33,010 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:59:32" (1/1) ... [2024-11-09 06:59:33,107 INFO L138 Inliner]: procedures = 177, calls = 724, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3262 [2024-11-09 06:59:33,112 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:59:33,113 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:59:33,113 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:59:33,113 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:59:33,122 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:59:32" (1/1) ... [2024-11-09 06:59:33,123 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:59:32" (1/1) ... [2024-11-09 06:59:33,136 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:59:32" (1/1) ... [2024-11-09 06:59:33,136 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:59:32" (1/1) ... [2024-11-09 06:59:33,237 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:59:32" (1/1) ... [2024-11-09 06:59:33,275 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:59:32" (1/1) ... [2024-11-09 06:59:33,288 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:59:32" (1/1) ... [2024-11-09 06:59:33,302 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:59:32" (1/1) ... [2024-11-09 06:59:33,325 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:59:33,326 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:59:33,327 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:59:33,327 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:59:33,328 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:59:32" (1/1) ... [2024-11-09 06:59:33,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:59:33,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0830202d-bd7e-43bf-84d6-4b7e3111f3ef/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:59:33,389 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0830202d-bd7e-43bf-84d6-4b7e3111f3ef/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:59:33,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0830202d-bd7e-43bf-84d6-4b7e3111f3ef/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:59:33,421 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-09 06:59:33,422 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-09 06:59:33,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 06:59:33,422 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 06:59:33,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 06:59:33,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 06:59:33,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-09 06:59:33,423 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-09 06:59:33,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 06:59:33,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:59:33,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 06:59:33,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 06:59:33,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 06:59:33,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 06:59:33,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:59:33,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:59:33,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:59:33,728 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:59:33,730 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:59:33,756 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-09 06:59:37,678 INFO L? ?]: Removed 1533 outVars from TransFormulas that were not future-live. [2024-11-09 06:59:37,679 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:59:39,677 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:59:39,679 INFO L316 CfgBuilder]: Removed 50 assume(true) statements. [2024-11-09 06:59:39,679 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:59:39 BoogieIcfgContainer [2024-11-09 06:59:39,680 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:59:39,682 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:59:39,683 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:59:39,687 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:59:39,687 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:59:31" (1/3) ... [2024-11-09 06:59:39,688 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e6ed0b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:59:39, skipping insertion in model container [2024-11-09 06:59:39,689 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:59:32" (2/3) ... [2024-11-09 06:59:39,690 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e6ed0b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:59:39, skipping insertion in model container [2024-11-09 06:59:39,690 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:59:39" (3/3) ... [2024-11-09 06:59:39,691 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test9-1.i [2024-11-09 06:59:39,715 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:59:39,715 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 424 error locations. [2024-11-09 06:59:39,816 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:59:39,825 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;@6a53bf1b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:59:39,826 INFO L334 AbstractCegarLoop]: Starting to check reachability of 424 error locations. [2024-11-09 06:59:39,840 INFO L276 IsEmpty]: Start isEmpty. Operand has 1788 states, 858 states have (on average 2.195804195804196) internal successors, (1884), 1781 states have internal predecessors, (1884), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) [2024-11-09 06:59:39,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-11-09 06:59:39,850 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:59:39,850 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-11-09 06:59:39,851 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-09 06:59:39,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:59:39,856 INFO L85 PathProgramCache]: Analyzing trace with hash 189649, now seen corresponding path program 1 times [2024-11-09 06:59:39,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:59:39,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461496866] [2024-11-09 06:59:39,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:39,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:59:40,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:40,128 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 06:59:40,129 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:59:40,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461496866] [2024-11-09 06:59:40,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461496866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:59:40,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:59:40,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 06:59:40,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481863852] [2024-11-09 06:59:40,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:59:40,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:59:40,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:59:40,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:59:40,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:59:40,183 INFO L87 Difference]: Start difference. First operand has 1788 states, 858 states have (on average 2.195804195804196) internal successors, (1884), 1781 states have internal predecessors, (1884), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 06:59:42,466 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 06:59:44,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:59:46,153 WARN L539 Checker$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 06:59:48,172 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 06:59:49,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:59:49,749 INFO L93 Difference]: Finished difference Result 1774 states and 2825 transitions. [2024-11-09 06:59:49,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:59:49,759 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2024-11-09 06:59:49,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:59:49,803 INFO L225 Difference]: With dead ends: 1774 [2024-11-09 06:59:49,803 INFO L226 Difference]: Without dead ends: 1773 [2024-11-09 06:59:49,805 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 06:59:49,808 INFO L432 NwaCegarLoop]: 2422 mSDtfsCounter, 1711 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 16 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2214 SdHoareTripleChecker+Valid, 2463 SdHoareTripleChecker+Invalid, 973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:59:49,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2214 Valid, 2463 Invalid, 973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 954 Invalid, 3 Unknown, 0 Unchecked, 9.3s Time] [2024-11-09 06:59:49,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1773 states. [2024-11-09 06:59:50,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1773 to 1773. [2024-11-09 06:59:50,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1773 states, 861 states have (on average 2.1091753774680604) internal successors, (1816), 1766 states have internal predecessors, (1816), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2024-11-09 06:59:50,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1773 states to 1773 states and 2824 transitions. [2024-11-09 06:59:50,155 INFO L78 Accepts]: Start accepts. Automaton has 1773 states and 2824 transitions. Word has length 2 [2024-11-09 06:59:50,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:59:50,156 INFO L471 AbstractCegarLoop]: Abstraction has 1773 states and 2824 transitions. [2024-11-09 06:59:50,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 06:59:50,156 INFO L276 IsEmpty]: Start isEmpty. Operand 1773 states and 2824 transitions. [2024-11-09 06:59:50,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-11-09 06:59:50,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:59:50,157 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-11-09 06:59:50,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:59:50,157 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-09 06:59:50,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:59:50,158 INFO L85 PathProgramCache]: Analyzing trace with hash 189650, now seen corresponding path program 1 times [2024-11-09 06:59:50,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:59:50,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387561542] [2024-11-09 06:59:50,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:50,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:59:50,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:50,268 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 06:59:50,268 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:59:50,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387561542] [2024-11-09 06:59:50,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387561542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:59:50,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:59:50,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 06:59:50,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812419600] [2024-11-09 06:59:50,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:59:50,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:59:50,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:59:50,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:59:50,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:59:50,272 INFO L87 Difference]: Start difference. First operand 1773 states and 2824 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 06:59:52,444 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 06:59:54,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:59:56,534 WARN L539 Checker$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 06:59:58,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:00:02,716 WARN L539 Checker$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 07:00:04,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:00:07,469 WARN L539 Checker$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 07:00:09,475 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 07:00:09,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:00:09,855 INFO L93 Difference]: Finished difference Result 3290 states and 5384 transitions. [2024-11-09 07:00:09,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:00:09,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2024-11-09 07:00:09,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:00:09,878 INFO L225 Difference]: With dead ends: 3290 [2024-11-09 07:00:09,878 INFO L226 Difference]: Without dead ends: 3290 [2024-11-09 07:00:09,879 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 07:00:09,880 INFO L432 NwaCegarLoop]: 2511 mSDtfsCounter, 1552 mSDsluCounter, 1887 mSDsCounter, 0 mSdLazyCounter, 1224 mSolverCounterSat, 14 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2054 SdHoareTripleChecker+Valid, 4398 SdHoareTripleChecker+Invalid, 1246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1224 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2024-11-09 07:00:09,882 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2054 Valid, 4398 Invalid, 1246 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14 Valid, 1224 Invalid, 8 Unknown, 0 Unchecked, 19.4s Time] [2024-11-09 07:00:09,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3290 states. [2024-11-09 07:00:10,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3290 to 3027. [2024-11-09 07:00:10,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3027 states, 1616 states have (on average 2.0810643564356437) internal successors, (3363), 3018 states have internal predecessors, (3363), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-11-09 07:00:10,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3027 states to 3027 states and 5375 transitions. [2024-11-09 07:00:10,372 INFO L78 Accepts]: Start accepts. Automaton has 3027 states and 5375 transitions. Word has length 2 [2024-11-09 07:00:10,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:00:10,375 INFO L471 AbstractCegarLoop]: Abstraction has 3027 states and 5375 transitions. [2024-11-09 07:00:10,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 07:00:10,375 INFO L276 IsEmpty]: Start isEmpty. Operand 3027 states and 5375 transitions. [2024-11-09 07:00:10,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 07:00:10,376 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:00:10,376 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 07:00:10,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 07:00:10,376 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-09 07:00:10,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:00:10,381 INFO L85 PathProgramCache]: Analyzing trace with hash -942959669, now seen corresponding path program 1 times [2024-11-09 07:00:10,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:00:10,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745778863] [2024-11-09 07:00:10,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:10,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:00:10,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:00:10,506 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 07:00:10,506 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:00:10,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745778863] [2024-11-09 07:00:10,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745778863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:00:10,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:00:10,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:00:10,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85503102] [2024-11-09 07:00:10,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:00:10,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:00:10,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:00:10,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:00:10,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:00:10,510 INFO L87 Difference]: Start difference. First operand 3027 states and 5375 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:12,661 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 07:00:14,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:00:16,688 WARN L539 Checker$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 07:00:18,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 07:00:20,736 WARN L539 Checker$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 07:00:22,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:00:26,114 WARN L539 Checker$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 07:00:27,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:00:27,241 INFO L93 Difference]: Finished difference Result 4177 states and 7525 transitions. [2024-11-09 07:00:27,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:00:27,242 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-09 07:00:27,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:00:27,266 INFO L225 Difference]: With dead ends: 4177 [2024-11-09 07:00:27,266 INFO L226 Difference]: Without dead ends: 4177 [2024-11-09 07:00:27,266 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 07:00:27,267 INFO L432 NwaCegarLoop]: 4484 mSDtfsCounter, 1690 mSDsluCounter, 2132 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 50 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2193 SdHoareTripleChecker+Valid, 6616 SdHoareTripleChecker+Invalid, 1143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.6s IncrementalHoareTripleChecker+Time [2024-11-09 07:00:27,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2193 Valid, 6616 Invalid, 1143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1086 Invalid, 7 Unknown, 0 Unchecked, 16.6s Time] [2024-11-09 07:00:27,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4177 states. [2024-11-09 07:00:27,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4177 to 2980. [2024-11-09 07:00:27,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2980 states, 1616 states have (on average 2.037128712871287) internal successors, (3292), 2971 states have internal predecessors, (3292), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-11-09 07:00:27,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2980 states to 2980 states and 5304 transitions. [2024-11-09 07:00:27,883 INFO L78 Accepts]: Start accepts. Automaton has 2980 states and 5304 transitions. Word has length 6 [2024-11-09 07:00:27,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:00:27,883 INFO L471 AbstractCegarLoop]: Abstraction has 2980 states and 5304 transitions. [2024-11-09 07:00:27,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:27,884 INFO L276 IsEmpty]: Start isEmpty. Operand 2980 states and 5304 transitions. [2024-11-09 07:00:27,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 07:00:27,884 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:00:27,884 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 07:00:27,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 07:00:27,885 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-09 07:00:27,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:00:27,886 INFO L85 PathProgramCache]: Analyzing trace with hash -942959668, now seen corresponding path program 1 times [2024-11-09 07:00:27,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:00:27,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421334923] [2024-11-09 07:00:27,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:27,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:00:27,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:00:27,994 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 07:00:27,995 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:00:27,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421334923] [2024-11-09 07:00:27,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421334923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:00:27,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:00:27,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:00:27,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146690550] [2024-11-09 07:00:27,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:00:27,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:00:27,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:00:28,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:00:28,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:00:28,000 INFO L87 Difference]: Start difference. First operand 2980 states and 5304 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:30,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 07:00:31,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:00:33,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:00:35,759 WARN L539 Checker$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 07:00:37,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:00:39,773 WARN L539 Checker$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 07:00:42,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:00:44,115 WARN L539 Checker$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 07:00:45,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:00:45,130 INFO L93 Difference]: Finished difference Result 5272 states and 9704 transitions. [2024-11-09 07:00:45,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:00:45,131 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-09 07:00:45,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:00:45,158 INFO L225 Difference]: With dead ends: 5272 [2024-11-09 07:00:45,159 INFO L226 Difference]: Without dead ends: 5272 [2024-11-09 07:00:45,159 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 07:00:45,161 INFO L432 NwaCegarLoop]: 4573 mSDtfsCounter, 1513 mSDsluCounter, 2216 mSDsCounter, 0 mSdLazyCounter, 1050 mSolverCounterSat, 26 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2015 SdHoareTripleChecker+Valid, 6789 SdHoareTripleChecker+Invalid, 1083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1050 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:00:45,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2015 Valid, 6789 Invalid, 1083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1050 Invalid, 7 Unknown, 0 Unchecked, 17.0s Time] [2024-11-09 07:00:45,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5272 states. [2024-11-09 07:00:45,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5272 to 2955. [2024-11-09 07:00:45,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2955 states, 1616 states have (on average 2.0068069306930694) internal successors, (3243), 2946 states have internal predecessors, (3243), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-11-09 07:00:45,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2955 states to 2955 states and 5255 transitions. [2024-11-09 07:00:45,668 INFO L78 Accepts]: Start accepts. Automaton has 2955 states and 5255 transitions. Word has length 6 [2024-11-09 07:00:45,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:00:45,669 INFO L471 AbstractCegarLoop]: Abstraction has 2955 states and 5255 transitions. [2024-11-09 07:00:45,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:45,669 INFO L276 IsEmpty]: Start isEmpty. Operand 2955 states and 5255 transitions. [2024-11-09 07:00:45,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 07:00:45,670 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:00:45,670 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:00:45,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 07:00:45,670 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr422ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-09 07:00:45,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:00:45,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1622623160, now seen corresponding path program 1 times [2024-11-09 07:00:45,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:00:45,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066095337] [2024-11-09 07:00:45,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:45,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:00:45,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:00:45,783 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 07:00:45,784 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:00:45,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066095337] [2024-11-09 07:00:45,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066095337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:00:45,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:00:45,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:00:45,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484655019] [2024-11-09 07:00:45,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:00:45,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:00:45,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:00:45,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:00:45,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:00:45,789 INFO L87 Difference]: Start difference. First operand 2955 states and 5255 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:47,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 07:00:49,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:00:51,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 07:00:54,495 WARN L539 Checker$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 07:00:56,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:00:58,522 WARN L539 Checker$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 07:01:00,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:01:02,658 WARN L539 Checker$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 07:01:04,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:01:06,674 WARN L539 Checker$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 07:01:08,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 07:01:10,718 WARN L539 Checker$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 07:01:12,723 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 07:01:13,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:01:13,555 INFO L93 Difference]: Finished difference Result 5259 states and 9695 transitions. [2024-11-09 07:01:13,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:01:13,556 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-09 07:01:13,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:01:13,592 INFO L225 Difference]: With dead ends: 5259 [2024-11-09 07:01:13,592 INFO L226 Difference]: Without dead ends: 5259 [2024-11-09 07:01:13,593 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 07:01:13,595 INFO L432 NwaCegarLoop]: 2678 mSDtfsCounter, 1217 mSDsluCounter, 4756 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 1 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1717 SdHoareTripleChecker+Valid, 7434 SdHoareTripleChecker+Invalid, 897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.6s IncrementalHoareTripleChecker+Time [2024-11-09 07:01:13,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1717 Valid, 7434 Invalid, 897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 883 Invalid, 13 Unknown, 0 Unchecked, 27.6s Time] [2024-11-09 07:01:13,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5259 states. [2024-11-09 07:01:14,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5259 to 2957. [2024-11-09 07:01:14,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2957 states, 1618 states have (on average 2.0055624227441284) internal successors, (3245), 2948 states have internal predecessors, (3245), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-11-09 07:01:14,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2957 states to 2957 states and 5257 transitions. [2024-11-09 07:01:14,189 INFO L78 Accepts]: Start accepts. Automaton has 2957 states and 5257 transitions. Word has length 9 [2024-11-09 07:01:14,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:01:14,189 INFO L471 AbstractCegarLoop]: Abstraction has 2957 states and 5257 transitions. [2024-11-09 07:01:14,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:01:14,190 INFO L276 IsEmpty]: Start isEmpty. Operand 2957 states and 5257 transitions. [2024-11-09 07:01:14,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 07:01:14,190 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:01:14,191 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:01:14,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 07:01:14,191 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-09 07:01:14,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:01:14,192 INFO L85 PathProgramCache]: Analyzing trace with hash 2083203115, now seen corresponding path program 1 times [2024-11-09 07:01:14,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:01:14,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509951324] [2024-11-09 07:01:14,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:14,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:01:14,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:01:14,322 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 07:01:14,323 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:01:14,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509951324] [2024-11-09 07:01:14,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509951324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:01:14,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:01:14,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:01:14,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854602138] [2024-11-09 07:01:14,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:01:14,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:01:14,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:01:14,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:01:14,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:01:14,328 INFO L87 Difference]: Start difference. First operand 2957 states and 5257 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:01:16,387 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 07:01:18,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 07:01:20,486 WARN L539 Checker$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 07:01:22,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 07:01:24,513 WARN L539 Checker$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 07:01:26,516 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 07:01:26,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:01:26,601 INFO L93 Difference]: Finished difference Result 2901 states and 5173 transitions. [2024-11-09 07:01:26,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:01:26,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-09 07:01:26,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:01:26,613 INFO L225 Difference]: With dead ends: 2901 [2024-11-09 07:01:26,614 INFO L226 Difference]: Without dead ends: 2901 [2024-11-09 07:01:26,614 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 07:01:26,615 INFO L432 NwaCegarLoop]: 2599 mSDtfsCounter, 61 mSDsluCounter, 2557 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 5156 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:01:26,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 5156 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 176 Invalid, 6 Unknown, 0 Unchecked, 12.2s Time] [2024-11-09 07:01:26,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2901 states. [2024-11-09 07:01:26,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2901 to 2901. [2024-11-09 07:01:26,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2901 states, 1586 states have (on average 1.9930643127364438) internal successors, (3161), 2892 states have internal predecessors, (3161), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-11-09 07:01:26,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2901 states to 2901 states and 5173 transitions. [2024-11-09 07:01:26,891 INFO L78 Accepts]: Start accepts. Automaton has 2901 states and 5173 transitions. Word has length 15 [2024-11-09 07:01:26,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:01:26,892 INFO L471 AbstractCegarLoop]: Abstraction has 2901 states and 5173 transitions. [2024-11-09 07:01:26,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:01:26,892 INFO L276 IsEmpty]: Start isEmpty. Operand 2901 states and 5173 transitions. [2024-11-09 07:01:26,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 07:01:26,893 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:01:26,893 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:01:26,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 07:01:26,894 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-09 07:01:26,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:01:26,894 INFO L85 PathProgramCache]: Analyzing trace with hash 161556708, now seen corresponding path program 1 times [2024-11-09 07:01:26,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:01:26,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925712411] [2024-11-09 07:01:26,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:26,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:01:26,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:01:27,001 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 07:01:27,001 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:01:27,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925712411] [2024-11-09 07:01:27,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925712411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:01:27,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:01:27,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:01:27,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600196693] [2024-11-09 07:01:27,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:01:27,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:01:27,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:01:27,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:01:27,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:01:27,004 INFO L87 Difference]: Start difference. First operand 2901 states and 5173 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:01:29,114 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 07:01:30,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 07:01:31,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 07:01:33,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 07:01:35,886 WARN L539 Checker$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 07:01:37,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 07:01:37,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:01:37,258 INFO L93 Difference]: Finished difference Result 2885 states and 5129 transitions. [2024-11-09 07:01:37,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:01:37,259 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-09 07:01:37,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:01:37,269 INFO L225 Difference]: With dead ends: 2885 [2024-11-09 07:01:37,269 INFO L226 Difference]: Without dead ends: 2885 [2024-11-09 07:01:37,269 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 07:01:37,270 INFO L432 NwaCegarLoop]: 2568 mSDtfsCounter, 45 mSDsluCounter, 5118 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 21 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 7686 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:01:37,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 7686 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 276 Invalid, 3 Unknown, 0 Unchecked, 10.2s Time] [2024-11-09 07:01:37,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2885 states. [2024-11-09 07:01:37,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2885 to 2885. [2024-11-09 07:01:37,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2885 states, 1584 states have (on average 1.9678030303030303) internal successors, (3117), 2876 states have internal predecessors, (3117), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-11-09 07:01:37,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2885 states to 2885 states and 5129 transitions. [2024-11-09 07:01:37,549 INFO L78 Accepts]: Start accepts. Automaton has 2885 states and 5129 transitions. Word has length 16 [2024-11-09 07:01:37,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:01:37,549 INFO L471 AbstractCegarLoop]: Abstraction has 2885 states and 5129 transitions. [2024-11-09 07:01:37,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:01:37,550 INFO L276 IsEmpty]: Start isEmpty. Operand 2885 states and 5129 transitions. [2024-11-09 07:01:37,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-09 07:01:37,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:01:37,551 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:01:37,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 07:01:37,551 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-09 07:01:37,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:01:37,552 INFO L85 PathProgramCache]: Analyzing trace with hash -14872814, now seen corresponding path program 1 times [2024-11-09 07:01:37,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:01:37,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643725726] [2024-11-09 07:01:37,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:37,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:01:37,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:01:37,630 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 07:01:37,630 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:01:37,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643725726] [2024-11-09 07:01:37,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643725726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:01:37,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:01:37,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:01:37,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508363005] [2024-11-09 07:01:37,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:01:37,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:01:37,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:01:37,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:01:37,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:01:37,632 INFO L87 Difference]: Start difference. First operand 2885 states and 5129 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:01:39,684 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 07:01:41,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:01:43,701 WARN L539 Checker$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 07:01:45,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:01:47,977 WARN L539 Checker$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 07:01:50,001 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 07:01:52,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:01:52,927 INFO L93 Difference]: Finished difference Result 2889 states and 5129 transitions. [2024-11-09 07:01:52,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:01:52,928 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2024-11-09 07:01:52,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:01:52,939 INFO L225 Difference]: With dead ends: 2889 [2024-11-09 07:01:52,940 INFO L226 Difference]: Without dead ends: 2889 [2024-11-09 07:01:52,940 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 07:01:52,941 INFO L432 NwaCegarLoop]: 2321 mSDtfsCounter, 1631 mSDsluCounter, 1289 mSDsCounter, 0 mSdLazyCounter, 2238 mSolverCounterSat, 8 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2134 SdHoareTripleChecker+Valid, 3610 SdHoareTripleChecker+Invalid, 2252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2238 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:01:52,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2134 Valid, 3610 Invalid, 2252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 2238 Invalid, 6 Unknown, 0 Unchecked, 15.2s Time] [2024-11-09 07:01:52,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2889 states. [2024-11-09 07:01:53,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2889 to 2881. [2024-11-09 07:01:53,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2881 states, 1584 states have (on average 1.9627525252525253) internal successors, (3109), 2872 states have internal predecessors, (3109), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-11-09 07:01:53,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2881 states to 2881 states and 5121 transitions. [2024-11-09 07:01:53,241 INFO L78 Accepts]: Start accepts. Automaton has 2881 states and 5121 transitions. Word has length 30 [2024-11-09 07:01:53,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:01:53,241 INFO L471 AbstractCegarLoop]: Abstraction has 2881 states and 5121 transitions. [2024-11-09 07:01:53,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:01:53,242 INFO L276 IsEmpty]: Start isEmpty. Operand 2881 states and 5121 transitions. [2024-11-09 07:01:53,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-09 07:01:53,243 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:01:53,243 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:01:53,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 07:01:53,244 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-09 07:01:53,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:01:53,244 INFO L85 PathProgramCache]: Analyzing trace with hash -14872813, now seen corresponding path program 1 times [2024-11-09 07:01:53,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:01:53,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80738582] [2024-11-09 07:01:53,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:53,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:01:53,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:01:53,434 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 07:01:53,437 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:01:53,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80738582] [2024-11-09 07:01:53,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80738582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:01:53,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:01:53,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:01:53,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917697524] [2024-11-09 07:01:53,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:01:53,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:01:53,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:01:53,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:01:53,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:01:53,439 INFO L87 Difference]: Start difference. First operand 2881 states and 5121 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:01:55,497 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 07:01:57,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:01:59,515 WARN L539 Checker$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 07:02:01,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:02:03,870 WARN L539 Checker$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 07:02:08,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 07:02:10,418 WARN L539 Checker$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 07:02:12,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:02:14,443 WARN L539 Checker$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 07:02:16,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:02:16,149 INFO L93 Difference]: Finished difference Result 5308 states and 9717 transitions. [2024-11-09 07:02:16,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:02:16,155 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2024-11-09 07:02:16,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:02:16,203 INFO L225 Difference]: With dead ends: 5308 [2024-11-09 07:02:16,204 INFO L226 Difference]: Without dead ends: 5308 [2024-11-09 07:02:16,204 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 07:02:16,207 INFO L432 NwaCegarLoop]: 2451 mSDtfsCounter, 1405 mSDsluCounter, 3043 mSDsCounter, 0 mSdLazyCounter, 2391 mSolverCounterSat, 3 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1905 SdHoareTripleChecker+Valid, 5494 SdHoareTripleChecker+Invalid, 2403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2391 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.5s IncrementalHoareTripleChecker+Time [2024-11-09 07:02:16,207 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1905 Valid, 5494 Invalid, 2403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2391 Invalid, 9 Unknown, 0 Unchecked, 22.5s Time] [2024-11-09 07:02:16,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5308 states. [2024-11-09 07:02:16,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5308 to 2877. [2024-11-09 07:02:16,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2877 states, 1584 states have (on average 1.95770202020202) internal successors, (3101), 2868 states have internal predecessors, (3101), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-11-09 07:02:16,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2877 states to 2877 states and 5113 transitions. [2024-11-09 07:02:16,886 INFO L78 Accepts]: Start accepts. Automaton has 2877 states and 5113 transitions. Word has length 30 [2024-11-09 07:02:16,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:02:16,886 INFO L471 AbstractCegarLoop]: Abstraction has 2877 states and 5113 transitions. [2024-11-09 07:02:16,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:02:16,886 INFO L276 IsEmpty]: Start isEmpty. Operand 2877 states and 5113 transitions. [2024-11-09 07:02:16,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-09 07:02:16,887 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:02:16,888 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 07:02:16,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 07:02:16,888 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr117REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-09 07:02:16,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:02:16,889 INFO L85 PathProgramCache]: Analyzing trace with hash 548538918, now seen corresponding path program 1 times [2024-11-09 07:02:16,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:02:16,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930226809] [2024-11-09 07:02:16,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:02:16,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:02:16,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:02:17,036 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 07:02:17,036 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:02:17,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930226809] [2024-11-09 07:02:17,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930226809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:02:17,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:02:17,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:02:17,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285999435] [2024-11-09 07:02:17,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:02:17,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:02:17,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:02:17,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:02:17,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:02:17,039 INFO L87 Difference]: Start difference. First operand 2877 states and 5113 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 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 07:02:19,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 07:02:21,130 WARN L539 Checker$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 07:02:23,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 07:02:25,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 07:02:27,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 07:02:29,252 WARN L539 Checker$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 07:02:31,255 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 07:02:31,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:02:31,394 INFO L93 Difference]: Finished difference Result 2865 states and 5093 transitions. [2024-11-09 07:02:31,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:02:31,395 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 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 07:02:31,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:02:31,404 INFO L225 Difference]: With dead ends: 2865 [2024-11-09 07:02:31,404 INFO L226 Difference]: Without dead ends: 2865 [2024-11-09 07:02:31,405 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 07:02:31,405 INFO L432 NwaCegarLoop]: 2562 mSDtfsCounter, 15 mSDsluCounter, 5107 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 6 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 7669 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:02:31,406 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 7669 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 270 Invalid, 6 Unknown, 0 Unchecked, 14.3s Time] [2024-11-09 07:02:31,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2865 states. [2024-11-09 07:02:31,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2865 to 2865. [2024-11-09 07:02:31,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2865 states, 1572 states have (on average 1.9599236641221374) internal successors, (3081), 2856 states have internal predecessors, (3081), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-11-09 07:02:31,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2865 states to 2865 states and 5093 transitions. [2024-11-09 07:02:31,757 INFO L78 Accepts]: Start accepts. Automaton has 2865 states and 5093 transitions. Word has length 46 [2024-11-09 07:02:31,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:02:31,757 INFO L471 AbstractCegarLoop]: Abstraction has 2865 states and 5093 transitions. [2024-11-09 07:02:31,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 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 07:02:31,758 INFO L276 IsEmpty]: Start isEmpty. Operand 2865 states and 5093 transitions. [2024-11-09 07:02:31,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-09 07:02:31,758 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:02:31,759 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:02:31,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 07:02:31,759 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr117REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-09 07:02:31,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:02:31,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1396889190, now seen corresponding path program 1 times [2024-11-09 07:02:31,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:02:31,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290750158] [2024-11-09 07:02:31,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:02:31,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:02:31,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:02:31,893 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 07:02:31,893 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:02:31,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290750158] [2024-11-09 07:02:31,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290750158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:02:31,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:02:31,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:02:31,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158827949] [2024-11-09 07:02:31,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:02:31,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:02:31,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:02:31,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:02:31,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:02:31,895 INFO L87 Difference]: Start difference. First operand 2865 states and 5093 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:02:33,921 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 07:02:36,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 07:02:38,476 WARN L539 Checker$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 07:02:40,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 07:02:42,494 WARN L539 Checker$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 07:02:44,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 07:02:46,602 WARN L539 Checker$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 07:02:47,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 07:02:48,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:02:48,040 INFO L93 Difference]: Finished difference Result 5111 states and 9418 transitions. [2024-11-09 07:02:48,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:02:48,040 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2024-11-09 07:02:48,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:02:48,057 INFO L225 Difference]: With dead ends: 5111 [2024-11-09 07:02:48,058 INFO L226 Difference]: Without dead ends: 5111 [2024-11-09 07:02:48,058 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 07:02:48,059 INFO L432 NwaCegarLoop]: 2697 mSDtfsCounter, 1141 mSDsluCounter, 2533 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 2 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1641 SdHoareTripleChecker+Valid, 5230 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:02:48,059 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1641 Valid, 5230 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 218 Invalid, 7 Unknown, 0 Unchecked, 16.1s Time] [2024-11-09 07:02:48,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5111 states. [2024-11-09 07:02:48,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5111 to 5054. [2024-11-09 07:02:48,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5054 states, 2761 states have (on average 1.9568996740311482) internal successors, (5403), 5045 states have internal predecessors, (5403), 2007 states have call successors, (2007), 3 states have call predecessors, (2007), 2 states have return successors, (2005), 9 states have call predecessors, (2005), 2005 states have call successors, (2005) [2024-11-09 07:02:48,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5054 states to 5054 states and 9415 transitions. [2024-11-09 07:02:48,616 INFO L78 Accepts]: Start accepts. Automaton has 5054 states and 9415 transitions. Word has length 50 [2024-11-09 07:02:48,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:02:48,617 INFO L471 AbstractCegarLoop]: Abstraction has 5054 states and 9415 transitions. [2024-11-09 07:02:48,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:02:48,617 INFO L276 IsEmpty]: Start isEmpty. Operand 5054 states and 9415 transitions. [2024-11-09 07:02:48,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-09 07:02:48,618 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:02:48,618 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] [2024-11-09 07:02:48,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 07:02:48,618 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-09 07:02:48,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:02:48,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1657736701, now seen corresponding path program 1 times [2024-11-09 07:02:48,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:02:48,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537121399] [2024-11-09 07:02:48,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:02:48,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:02:48,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:02:49,104 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 07:02:49,106 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:02:49,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537121399] [2024-11-09 07:02:49,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537121399] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:02:49,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:02:49,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:02:49,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449604892] [2024-11-09 07:02:49,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:02:49,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:02:49,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:02:49,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:02:49,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:02:49,109 INFO L87 Difference]: Start difference. First operand 5054 states and 9415 transitions. Second operand has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 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 07:02:51,169 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 07:02:53,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:02:55,178 WARN L539 Checker$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 07:02:57,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:02:59,581 WARN L539 Checker$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 07:03:01,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:03:04,111 WARN L539 Checker$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 07:03:06,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:03:08,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:03:08,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:03:08,523 INFO L93 Difference]: Finished difference Result 5053 states and 9413 transitions. [2024-11-09 07:03:08,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:03:08,524 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 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 57 [2024-11-09 07:03:08,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:03:08,541 INFO L225 Difference]: With dead ends: 5053 [2024-11-09 07:03:08,541 INFO L226 Difference]: Without dead ends: 5053 [2024-11-09 07:03:08,541 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 07:03:08,542 INFO L432 NwaCegarLoop]: 2574 mSDtfsCounter, 2 mSDsluCounter, 6971 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 9545 SdHoareTripleChecker+Invalid, 1084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:03:08,542 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 9545 Invalid, 1084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1075 Invalid, 8 Unknown, 0 Unchecked, 19.3s Time] [2024-11-09 07:03:08,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5053 states. [2024-11-09 07:03:09,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5053 to 5053. [2024-11-09 07:03:09,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5053 states, 2761 states have (on average 1.956175298804781) internal successors, (5401), 5044 states have internal predecessors, (5401), 2007 states have call successors, (2007), 3 states have call predecessors, (2007), 2 states have return successors, (2005), 9 states have call predecessors, (2005), 2005 states have call successors, (2005) [2024-11-09 07:03:09,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5053 states to 5053 states and 9413 transitions. [2024-11-09 07:03:09,280 INFO L78 Accepts]: Start accepts. Automaton has 5053 states and 9413 transitions. Word has length 57 [2024-11-09 07:03:09,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:03:09,281 INFO L471 AbstractCegarLoop]: Abstraction has 5053 states and 9413 transitions. [2024-11-09 07:03:09,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 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 07:03:09,281 INFO L276 IsEmpty]: Start isEmpty. Operand 5053 states and 9413 transitions. [2024-11-09 07:03:09,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-09 07:03:09,282 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:03:09,282 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] [2024-11-09 07:03:09,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 07:03:09,283 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-09 07:03:09,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:03:09,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1657736700, now seen corresponding path program 1 times [2024-11-09 07:03:09,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:03:09,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006244066] [2024-11-09 07:03:09,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:03:09,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:03:09,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:03:10,060 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 07:03:10,061 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:03:10,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006244066] [2024-11-09 07:03:10,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006244066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:03:10,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:03:10,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:03:10,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269513462] [2024-11-09 07:03:10,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:03:10,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:03:10,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:03:10,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:03:10,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:03:10,064 INFO L87 Difference]: Start difference. First operand 5053 states and 9413 transitions. Second operand has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 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 07:03:12,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 07:03:14,131 WARN L539 Checker$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 07:03:16,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:03:18,141 WARN L539 Checker$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 07:03:20,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 07:03:22,585 WARN L539 Checker$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 07:03:24,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:03:24,529 INFO L93 Difference]: Finished difference Result 5052 states and 9411 transitions. [2024-11-09 07:03:24,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:03:24,530 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 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 57 [2024-11-09 07:03:24,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:03:24,547 INFO L225 Difference]: With dead ends: 5052 [2024-11-09 07:03:24,547 INFO L226 Difference]: Without dead ends: 5052 [2024-11-09 07:03:24,548 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 07:03:24,548 INFO L432 NwaCegarLoop]: 2574 mSDtfsCounter, 1 mSDsluCounter, 6909 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 9483 SdHoareTripleChecker+Invalid, 1143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2024-11-09 07:03:24,549 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 9483 Invalid, 1143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1136 Invalid, 6 Unknown, 0 Unchecked, 14.4s Time] [2024-11-09 07:03:24,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5052 states. [2024-11-09 07:03:25,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5052 to 5052. [2024-11-09 07:03:25,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5052 states, 2759 states have (on average 1.9568684305907937) internal successors, (5399), 5043 states have internal predecessors, (5399), 2007 states have call successors, (2007), 3 states have call predecessors, (2007), 2 states have return successors, (2005), 9 states have call predecessors, (2005), 2005 states have call successors, (2005) [2024-11-09 07:03:25,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5052 states to 5052 states and 9411 transitions. [2024-11-09 07:03:25,297 INFO L78 Accepts]: Start accepts. Automaton has 5052 states and 9411 transitions. Word has length 57 [2024-11-09 07:03:25,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:03:25,297 INFO L471 AbstractCegarLoop]: Abstraction has 5052 states and 9411 transitions. [2024-11-09 07:03:25,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 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 07:03:25,298 INFO L276 IsEmpty]: Start isEmpty. Operand 5052 states and 9411 transitions. [2024-11-09 07:03:25,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 07:03:25,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:03:25,299 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:03:25,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 07:03:25,299 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-09 07:03:25,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:03:25,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1981213751, now seen corresponding path program 1 times [2024-11-09 07:03:25,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:03:25,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195857401] [2024-11-09 07:03:25,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:03:25,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:03:25,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:03:25,692 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 07:03:25,692 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:03:25,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195857401] [2024-11-09 07:03:25,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195857401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:03:25,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:03:25,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 07:03:25,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129131404] [2024-11-09 07:03:25,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:03:25,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 07:03:25,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:03:25,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 07:03:25,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 07:03:25,695 INFO L87 Difference]: Start difference. First operand 5052 states and 9411 transitions. Second operand has 7 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 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 07:03:27,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 07:03:29,769 WARN L539 Checker$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 07:03:31,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:03:33,776 WARN L539 Checker$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 07:03:35,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:03:37,783 WARN L539 Checker$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 07:03:40,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 07:03:42,237 WARN L539 Checker$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 07:03:43,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:03:45,878 WARN L539 Checker$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 07:03:47,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:03:49,883 WARN L539 Checker$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 07:03:54,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:03:54,699 INFO L93 Difference]: Finished difference Result 5067 states and 9434 transitions. [2024-11-09 07:03:54,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 07:03:54,701 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 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 63 [2024-11-09 07:03:54,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:03:54,719 INFO L225 Difference]: With dead ends: 5067 [2024-11-09 07:03:54,719 INFO L226 Difference]: Without dead ends: 5067 [2024-11-09 07:03:54,719 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 07:03:54,720 INFO L432 NwaCegarLoop]: 2561 mSDtfsCounter, 12 mSDsluCounter, 7059 mSDsCounter, 0 mSdLazyCounter, 3660 mSolverCounterSat, 505 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 9620 SdHoareTripleChecker+Invalid, 4176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 505 IncrementalHoareTripleChecker+Valid, 3660 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.8s IncrementalHoareTripleChecker+Time [2024-11-09 07:03:54,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 9620 Invalid, 4176 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [505 Valid, 3660 Invalid, 11 Unknown, 0 Unchecked, 28.8s Time] [2024-11-09 07:03:54,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5067 states. [2024-11-09 07:03:55,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5067 to 5060. [2024-11-09 07:03:55,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5060 states, 2766 states have (on average 1.9555314533622559) internal successors, (5409), 5049 states have internal predecessors, (5409), 2007 states have call successors, (2007), 3 states have call predecessors, (2007), 3 states have return successors, (2010), 11 states have call predecessors, (2010), 2005 states have call successors, (2010) [2024-11-09 07:03:55,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5060 states to 5060 states and 9426 transitions. [2024-11-09 07:03:55,171 INFO L78 Accepts]: Start accepts. Automaton has 5060 states and 9426 transitions. Word has length 63 [2024-11-09 07:03:55,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:03:55,171 INFO L471 AbstractCegarLoop]: Abstraction has 5060 states and 9426 transitions. [2024-11-09 07:03:55,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 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 07:03:55,172 INFO L276 IsEmpty]: Start isEmpty. Operand 5060 states and 9426 transitions. [2024-11-09 07:03:55,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 07:03:55,172 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:03:55,173 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:03:55,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 07:03:55,173 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-09 07:03:55,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:03:55,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1981213750, now seen corresponding path program 1 times [2024-11-09 07:03:55,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:03:55,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651852017] [2024-11-09 07:03:55,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:03:55,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:03:55,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:03:55,966 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 07:03:55,966 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:03:55,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651852017] [2024-11-09 07:03:55,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651852017] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:03:55,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:03:55,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:03:55,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282304783] [2024-11-09 07:03:55,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:03:55,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:03:55,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:03:55,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:03:55,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:03:55,969 INFO L87 Difference]: Start difference. First operand 5060 states and 9426 transitions. Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 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 07:03:58,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 07:04:00,077 WARN L539 Checker$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 07:04:01,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:04:04,353 WARN L539 Checker$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 07:04:06,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:04:09,314 WARN L539 Checker$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 07:04:11,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:04:13,318 WARN L539 Checker$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 07:04:15,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:04:17,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:04:20,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:04:20,836 INFO L93 Difference]: Finished difference Result 5060 states and 9424 transitions. [2024-11-09 07:04:20,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:04:20,836 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 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 63 [2024-11-09 07:04:20,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:04:20,854 INFO L225 Difference]: With dead ends: 5060 [2024-11-09 07:04:20,855 INFO L226 Difference]: Without dead ends: 5060 [2024-11-09 07:04:20,855 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 07:04:20,856 INFO L432 NwaCegarLoop]: 2564 mSDtfsCounter, 8 mSDsluCounter, 6867 mSDsCounter, 0 mSdLazyCounter, 3334 mSolverCounterSat, 503 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 9431 SdHoareTripleChecker+Invalid, 3845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 503 IncrementalHoareTripleChecker+Valid, 3334 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.7s IncrementalHoareTripleChecker+Time [2024-11-09 07:04:20,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 9431 Invalid, 3845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [503 Valid, 3334 Invalid, 8 Unknown, 0 Unchecked, 24.7s Time] [2024-11-09 07:04:20,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5060 states. [2024-11-09 07:04:21,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5060 to 5060. [2024-11-09 07:04:21,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5060 states, 2766 states have (on average 1.9548083875632682) internal successors, (5407), 5049 states have internal predecessors, (5407), 2007 states have call successors, (2007), 3 states have call predecessors, (2007), 3 states have return successors, (2010), 11 states have call predecessors, (2010), 2005 states have call successors, (2010) [2024-11-09 07:04:21,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5060 states to 5060 states and 9424 transitions. [2024-11-09 07:04:21,351 INFO L78 Accepts]: Start accepts. Automaton has 5060 states and 9424 transitions. Word has length 63 [2024-11-09 07:04:21,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:04:21,352 INFO L471 AbstractCegarLoop]: Abstraction has 5060 states and 9424 transitions. [2024-11-09 07:04:21,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 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 07:04:21,352 INFO L276 IsEmpty]: Start isEmpty. Operand 5060 states and 9424 transitions. [2024-11-09 07:04:21,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-09 07:04:21,353 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:04:21,353 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:04:21,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 07:04:21,353 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-09 07:04:21,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:04:21,355 INFO L85 PathProgramCache]: Analyzing trace with hash 2062699393, now seen corresponding path program 1 times [2024-11-09 07:04:21,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:04:21,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762918589] [2024-11-09 07:04:21,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:04:21,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:04:21,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:04:22,186 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 07:04:22,187 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:04:22,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762918589] [2024-11-09 07:04:22,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762918589] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:04:22,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033493644] [2024-11-09 07:04:22,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:04:22,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:04:22,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0830202d-bd7e-43bf-84d6-4b7e3111f3ef/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:04:22,193 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0830202d-bd7e-43bf-84d6-4b7e3111f3ef/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:04:22,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0830202d-bd7e-43bf-84d6-4b7e3111f3ef/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 07:04:22,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:04:22,459 INFO L255 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-09 07:04:22,467 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:04:22,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 07:04:22,640 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-09 07:04:22,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-09 07:04:22,689 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 07:04:22,795 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 07:04:23,049 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-09 07:04:23,050 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 07:04:23,114 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 07:04:23,167 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 07:04:23,167 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:04:23,214 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_586 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_586) |c_ULTIMATE.start_main_~user~0#1.base|) (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) 1)) is different from false [2024-11-09 07:04:23,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033493644] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:04:23,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [456754693] [2024-11-09 07:04:23,241 INFO L159 IcfgInterpreter]: Started Sifa with 64 locations of interest [2024-11-09 07:04:23,241 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:04:23,246 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:04:23,252 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:04:23,252 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:04:30,036 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 128 for LOIs [2024-11-09 07:04:30,317 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:07:21,297 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '117436#(and (<= 1 |#StackHeapBarrier|) (or (and (exists ((|v_old(#memory_$Pointer$.base)_AFTER_CALL_3| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_309| (Array Int (Array Int Int))) (|v_#length_619| (Array Int Int)) (|v_#valid_633| (Array Int Int)) (|v_#memory_$Pointer$.base_312| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_310| (Array Int (Array Int Int)))) (and (= (select |v_#valid_633| (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_3| |ULTIMATE.start_main_~user~0#1.base|) 8)) 0) (not (= (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_3| |ULTIMATE.start_main_~user~0#1.base|) 8) 0)) (= (store |v_#valid_633| (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_3| |ULTIMATE.start_main_~user~0#1.base|) 8) 1) |#valid|) (= |#length| (store |v_#length_619| (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_3| |ULTIMATE.start_main_~user~0#1.base|) 8) 44)) (<= 40 (select |v_#length_619| |ULTIMATE.start_main_~user~0#1.base|)) (= |v_#memory_$Pointer$.base_310| (store |v_#memory_$Pointer$.base_309| |ULTIMATE.start_main_~user~0#1.base| (store (select |v_#memory_$Pointer$.base_309| |ULTIMATE.start_main_~user~0#1.base|) 36 (select (select |v_#memory_$Pointer$.base_310| |ULTIMATE.start_main_~user~0#1.base|) 36)))) (<= (+ (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_3| |ULTIMATE.start_main_~user~0#1.base|) 8) 1) |#StackHeapBarrier|) (= |v_old(#memory_$Pointer$.base)_AFTER_CALL_3| (store |v_#memory_$Pointer$.base_312| |ULTIMATE.start_main_~user~0#1.base| (store (store (store (select |v_#memory_$Pointer$.base_312| |ULTIMATE.start_main_~user~0#1.base|) 16 0) 12 0) 8 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_3| |ULTIMATE.start_main_~user~0#1.base|) 8)))) (= (select |v_#valid_633| |ULTIMATE.start_main_~user~0#1.base|) 1) (= (store |v_#memory_$Pointer$.base_310| |ULTIMATE.start_main_~user~0#1.base| (store (store (select |v_#memory_$Pointer$.base_310| |ULTIMATE.start_main_~user~0#1.base|) 28 |ULTIMATE.start_main_~user~0#1.base|) 32 (select (select |v_#memory_$Pointer$.base_312| |ULTIMATE.start_main_~user~0#1.base|) 32))) |v_#memory_$Pointer$.base_312|))) (exists ((|v_#Ultimate.C_memset_#t~loopctr228_18| Int)) (and (<= 44 (mod |v_#Ultimate.C_memset_#t~loopctr228_18| 4294967296)) (<= 0 |v_#Ultimate.C_memset_#t~loopctr228_18|))) (exists ((|v_#memory_$Pointer$.offset_305| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_306| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_308| (Array Int (Array Int Int)))) (and (= (store |v_#memory_$Pointer$.offset_305| |ULTIMATE.start_main_~user~0#1.base| (store (select |v_#memory_$Pointer$.offset_305| |ULTIMATE.start_main_~user~0#1.base|) 36 (select (select |v_#memory_$Pointer$.offset_306| |ULTIMATE.start_main_~user~0#1.base|) 36))) |v_#memory_$Pointer$.offset_306|) (= |v_#memory_$Pointer$.offset_308| (store |v_#memory_$Pointer$.offset_306| |ULTIMATE.start_main_~user~0#1.base| (store (store (select |v_#memory_$Pointer$.offset_306| |ULTIMATE.start_main_~user~0#1.base|) 28 0) 32 (select (select |v_#memory_$Pointer$.offset_308| |ULTIMATE.start_main_~user~0#1.base|) 32)))))) (exists ((|v_#memory_int_427| (Array Int (Array Int Int))) (|v_#memory_int_426| (Array Int (Array Int Int))) (|v_old(#memory_int)_AFTER_CALL_3| (Array Int (Array Int Int))) (|v_#memory_int_422| (Array Int (Array Int Int))) (|v_#memory_int_424| (Array Int (Array Int Int)))) (and (= (store |v_#memory_int_426| |ULTIMATE.start_main_~user~0#1.base| (store (select |v_#memory_int_426| |ULTIMATE.start_main_~user~0#1.base|) 12 (select (select |v_#memory_int_427| |ULTIMATE.start_main_~user~0#1.base|) 12))) |v_#memory_int_427|) (= (store |v_#memory_int_427| |ULTIMATE.start_main_~user~0#1.base| (store (select |v_#memory_int_427| |ULTIMATE.start_main_~user~0#1.base|) 8 (select (select |v_old(#memory_int)_AFTER_CALL_3| |ULTIMATE.start_main_~user~0#1.base|) 8))) |v_old(#memory_int)_AFTER_CALL_3|) (= (store |v_#memory_int_422| |ULTIMATE.start_main_~user~0#1.base| (store (store (select |v_#memory_int_422| |ULTIMATE.start_main_~user~0#1.base|) 36 |ULTIMATE.start_main_~_ha_hashv~0#1|) 28 (select (select |v_#memory_int_424| |ULTIMATE.start_main_~user~0#1.base|) 28))) |v_#memory_int_424|) (= (store |v_#memory_int_424| |ULTIMATE.start_main_~user~0#1.base| (store (store (select |v_#memory_int_424| |ULTIMATE.start_main_~user~0#1.base|) 32 4) 16 (select (select |v_#memory_int_426| |ULTIMATE.start_main_~user~0#1.base|) 16))) |v_#memory_int_426|)))) (and (exists ((|v_#Ultimate.C_memset_#t~loopctr228_18| Int)) (and (<= 44 (mod |v_#Ultimate.C_memset_#t~loopctr228_18| 4294967296)) (<= 0 |v_#Ultimate.C_memset_#t~loopctr228_18|))) (exists ((|v_#memory_$Pointer$.offset_305| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_306| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_308| (Array Int (Array Int Int)))) (and (= (store |v_#memory_$Pointer$.offset_305| |ULTIMATE.start_main_~user~0#1.base| (store (select |v_#memory_$Pointer$.offset_305| |ULTIMATE.start_main_~user~0#1.base|) 36 (select (select |v_#memory_$Pointer$.offset_306| |ULTIMATE.start_main_~user~0#1.base|) 36))) |v_#memory_$Pointer$.offset_306|) (= |v_#memory_$Pointer$.offset_308| (store |v_#memory_$Pointer$.offset_306| |ULTIMATE.start_main_~user~0#1.base| (store (store (select |v_#memory_$Pointer$.offset_306| |ULTIMATE.start_main_~user~0#1.base|) 28 0) 32 (select (select |v_#memory_$Pointer$.offset_308| |ULTIMATE.start_main_~user~0#1.base|) 32)))))) (exists ((|v_#memory_int_427| (Array Int (Array Int Int))) (|v_#memory_int_426| (Array Int (Array Int Int))) (|v_old(#memory_int)_AFTER_CALL_2| (Array Int (Array Int Int))) (|v_#memory_int_422| (Array Int (Array Int Int))) (|v_#memory_int_424| (Array Int (Array Int Int)))) (and (= (store |v_#memory_int_426| |ULTIMATE.start_main_~user~0#1.base| (store (select |v_#memory_int_426| |ULTIMATE.start_main_~user~0#1.base|) 12 (select (select |v_#memory_int_427| |ULTIMATE.start_main_~user~0#1.base|) 12))) |v_#memory_int_427|) (= (store |v_#memory_int_422| |ULTIMATE.start_main_~user~0#1.base| (store (store (select |v_#memory_int_422| |ULTIMATE.start_main_~user~0#1.base|) 36 |ULTIMATE.start_main_~_ha_hashv~0#1|) 28 (select (select |v_#memory_int_424| |ULTIMATE.start_main_~user~0#1.base|) 28))) |v_#memory_int_424|) (= (store |v_#memory_int_424| |ULTIMATE.start_main_~user~0#1.base| (store (store (select |v_#memory_int_424| |ULTIMATE.start_main_~user~0#1.base|) 32 4) 16 (select (select |v_#memory_int_426| |ULTIMATE.start_main_~user~0#1.base|) 16))) |v_#memory_int_426|) (= (store |v_#memory_int_427| |ULTIMATE.start_main_~user~0#1.base| (store (select |v_#memory_int_427| |ULTIMATE.start_main_~user~0#1.base|) 8 (select (select |v_old(#memory_int)_AFTER_CALL_2| |ULTIMATE.start_main_~user~0#1.base|) 8))) |v_old(#memory_int)_AFTER_CALL_2|))) (exists ((|v_#memory_$Pointer$.base_309| (Array Int (Array Int Int))) (|v_#length_619| (Array Int Int)) (|v_old(#memory_$Pointer$.base)_AFTER_CALL_2| (Array Int (Array Int Int))) (|v_#valid_633| (Array Int Int)) (|v_#memory_$Pointer$.base_312| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_310| (Array Int (Array Int Int)))) (and (= (store |v_#valid_633| (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_2| |ULTIMATE.start_main_~user~0#1.base|) 8) 1) |#valid|) (<= 40 (select |v_#length_619| |ULTIMATE.start_main_~user~0#1.base|)) (= |v_old(#memory_$Pointer$.base)_AFTER_CALL_2| (store |v_#memory_$Pointer$.base_312| |ULTIMATE.start_main_~user~0#1.base| (store (store (store (select |v_#memory_$Pointer$.base_312| |ULTIMATE.start_main_~user~0#1.base|) 16 0) 12 0) 8 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_2| |ULTIMATE.start_main_~user~0#1.base|) 8)))) (= |v_#memory_$Pointer$.base_310| (store |v_#memory_$Pointer$.base_309| |ULTIMATE.start_main_~user~0#1.base| (store (select |v_#memory_$Pointer$.base_309| |ULTIMATE.start_main_~user~0#1.base|) 36 (select (select |v_#memory_$Pointer$.base_310| |ULTIMATE.start_main_~user~0#1.base|) 36)))) (<= (+ (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_2| |ULTIMATE.start_main_~user~0#1.base|) 8) 1) |#StackHeapBarrier|) (= (select |v_#valid_633| (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_2| |ULTIMATE.start_main_~user~0#1.base|) 8)) 0) (not (= (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_2| |ULTIMATE.start_main_~user~0#1.base|) 8) 0)) (= (select |v_#valid_633| |ULTIMATE.start_main_~user~0#1.base|) 1) (= (store |v_#memory_$Pointer$.base_310| |ULTIMATE.start_main_~user~0#1.base| (store (store (select |v_#memory_$Pointer$.base_310| |ULTIMATE.start_main_~user~0#1.base|) 28 |ULTIMATE.start_main_~user~0#1.base|) 32 (select (select |v_#memory_$Pointer$.base_312| |ULTIMATE.start_main_~user~0#1.base|) 32))) |v_#memory_$Pointer$.base_312|) (= |#length| (store |v_#length_619| (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_2| |ULTIMATE.start_main_~user~0#1.base|) 8) 44)))))) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~user~0#1.base|) 8)) 1)) (<= 2 |ULTIMATE.start_main_~#i~0#1.base|) (= |ULTIMATE.start_main_~user~0#1.offset| 0) (= ~count_int_int~0 0) (= |ULTIMATE.start_main_#t~mem56#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~user~0#1.base|) 8)) (= |ULTIMATE.start_main_~#i~0#1.offset| 0))' at error location [2024-11-09 07:07:21,298 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:07:21,298 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 07:07:21,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 18 [2024-11-09 07:07:21,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852600808] [2024-11-09 07:07:21,299 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 07:07:21,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 07:07:21,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:07:21,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 07:07:21,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=268, Invalid=2608, Unknown=98, NotChecked=106, Total=3080 [2024-11-09 07:07:21,302 INFO L87 Difference]: Start difference. First operand 5060 states and 9424 transitions. Second operand has 19 states, 16 states have (on average 6.8125) internal successors, (109), 18 states have internal predecessors, (109), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:07:23,732 WARN L539 Checker$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 07:07:25,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:07:27,739 WARN L539 Checker$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 07:07:29,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:07:31,747 WARN L539 Checker$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 07:07:33,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:07:35,760 WARN L539 Checker$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 07:07:37,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:07:39,767 WARN L539 Checker$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 07:07:41,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:07:43,778 WARN L539 Checker$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 07:07:45,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:07:47,785 WARN L539 Checker$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 07:07:49,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:07:51,800 WARN L539 Checker$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 07:07:53,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:07:55,807 WARN L539 Checker$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 07:08:01,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:08:03,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:08:05,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:08:07,727 WARN L539 Checker$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 07:08:09,731 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 07:08:41,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:08:41,727 INFO L93 Difference]: Finished difference Result 5064 states and 9427 transitions. [2024-11-09 07:08:41,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 07:08:41,728 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 6.8125) internal successors, (109), 18 states have internal predecessors, (109), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 64 [2024-11-09 07:08:41,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:08:41,741 INFO L225 Difference]: With dead ends: 5064 [2024-11-09 07:08:41,742 INFO L226 Difference]: Without dead ends: 5064 [2024-11-09 07:08:41,743 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 88 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1140 ImplicationChecksByTransitivity, 171.6s TimeCoverageRelationStatistics Valid=300, Invalid=3028, Unknown=98, NotChecked=114, Total=3540 [2024-11-09 07:08:41,743 INFO L432 NwaCegarLoop]: 2304 mSDtfsCounter, 1589 mSDsluCounter, 16236 mSDsCounter, 0 mSdLazyCounter, 12784 mSolverCounterSat, 517 mSolverCounterUnsat, 21 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 77.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2093 SdHoareTripleChecker+Valid, 18540 SdHoareTripleChecker+Invalid, 13322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 517 IncrementalHoareTripleChecker+Valid, 12784 IncrementalHoareTripleChecker+Invalid, 21 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 79.6s IncrementalHoareTripleChecker+Time [2024-11-09 07:08:41,743 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2093 Valid, 18540 Invalid, 13322 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [517 Valid, 12784 Invalid, 21 Unknown, 0 Unchecked, 79.6s Time] [2024-11-09 07:08:41,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5064 states. [2024-11-09 07:08:42,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5064 to 5062. [2024-11-09 07:08:42,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5062 states, 2768 states have (on average 1.953757225433526) internal successors, (5408), 5050 states have internal predecessors, (5408), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2024-11-09 07:08:42,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5062 states to 5062 states and 9422 transitions. [2024-11-09 07:08:42,231 INFO L78 Accepts]: Start accepts. Automaton has 5062 states and 9422 transitions. Word has length 64 [2024-11-09 07:08:42,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:08:42,231 INFO L471 AbstractCegarLoop]: Abstraction has 5062 states and 9422 transitions. [2024-11-09 07:08:42,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 6.8125) internal successors, (109), 18 states have internal predecessors, (109), 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 07:08:42,232 INFO L276 IsEmpty]: Start isEmpty. Operand 5062 states and 9422 transitions. [2024-11-09 07:08:42,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-09 07:08:42,233 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:08:42,233 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:08:42,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0830202d-bd7e-43bf-84d6-4b7e3111f3ef/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 07:08:42,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0830202d-bd7e-43bf-84d6-4b7e3111f3ef/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-09 07:08:42,434 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-09 07:08:42,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:08:42,437 INFO L85 PathProgramCache]: Analyzing trace with hash 2062699394, now seen corresponding path program 1 times [2024-11-09 07:08:42,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:08:42,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700304580] [2024-11-09 07:08:42,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:08:42,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:08:42,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:08:43,945 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 07:08:43,946 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:08:43,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700304580] [2024-11-09 07:08:43,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700304580] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:08:43,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268275895] [2024-11-09 07:08:43,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:08:43,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:08:43,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0830202d-bd7e-43bf-84d6-4b7e3111f3ef/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:08:43,948 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0830202d-bd7e-43bf-84d6-4b7e3111f3ef/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:08:43,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0830202d-bd7e-43bf-84d6-4b7e3111f3ef/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 07:08:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:08:44,211 INFO L255 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-09 07:08:44,215 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:08:44,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 07:08:44,556 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 07:08:44,586 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-09 07:08:44,586 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 07:08:44,621 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 07:08:44,629 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 07:08:44,880 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 07:08:44,890 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 07:08:45,179 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-09 07:08:45,179 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 07:08:45,195 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 07:08:45,277 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 07:08:45,292 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 07:08:45,301 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 07:08:45,301 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:08:45,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1268275895] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:08:45,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [263941167] [2024-11-09 07:08:45,779 INFO L159 IcfgInterpreter]: Started Sifa with 64 locations of interest [2024-11-09 07:08:45,779 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:08:45,780 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:08:45,780 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:08:45,781 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:08:52,243 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 130 for LOIs [2024-11-09 07:08:53,477 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:12:06,194 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '127825#(and (<= 1 |#StackHeapBarrier|) (or (and (exists ((|v_old(#memory_$Pointer$.base)_AFTER_CALL_5| (Array Int (Array Int Int))) (|v_#length_623| (Array Int Int)) (|v_#memory_$Pointer$.base_335| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_333| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_332| (Array Int (Array Int Int))) (|v_#valid_638| (Array Int Int))) (and (= (select |v_#valid_638| (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_5| |ULTIMATE.start_main_~user~0#1.base|) 8)) 0) (not (= (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_5| |ULTIMATE.start_main_~user~0#1.base|) 8) 0)) (<= (+ (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_5| |ULTIMATE.start_main_~user~0#1.base|) 8) 1) |#StackHeapBarrier|) (= |v_old(#memory_$Pointer$.base)_AFTER_CALL_5| (store |v_#memory_$Pointer$.base_335| |ULTIMATE.start_main_~user~0#1.base| (store (store (store (select |v_#memory_$Pointer$.base_335| |ULTIMATE.start_main_~user~0#1.base|) 16 0) 12 0) 8 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_5| |ULTIMATE.start_main_~user~0#1.base|) 8)))) (= (select |v_#valid_638| |ULTIMATE.start_main_~user~0#1.base|) 1) (= (store |v_#memory_$Pointer$.base_333| |ULTIMATE.start_main_~user~0#1.base| (store (store (select |v_#memory_$Pointer$.base_333| |ULTIMATE.start_main_~user~0#1.base|) 28 |ULTIMATE.start_main_~user~0#1.base|) 32 (select (select |v_#memory_$Pointer$.base_335| |ULTIMATE.start_main_~user~0#1.base|) 32))) |v_#memory_$Pointer$.base_335|) (= (store |v_#memory_$Pointer$.base_332| |ULTIMATE.start_main_~user~0#1.base| (store (select |v_#memory_$Pointer$.base_332| |ULTIMATE.start_main_~user~0#1.base|) 36 (select (select |v_#memory_$Pointer$.base_333| |ULTIMATE.start_main_~user~0#1.base|) 36))) |v_#memory_$Pointer$.base_333|) (= (store |v_#valid_638| (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_5| |ULTIMATE.start_main_~user~0#1.base|) 8) 1) |#valid|) (= |#length| (store |v_#length_623| (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_5| |ULTIMATE.start_main_~user~0#1.base|) 8) 44)) (<= 40 (select |v_#length_623| |ULTIMATE.start_main_~user~0#1.base|)))) (exists ((|v_#memory_int_445| (Array Int (Array Int Int))) (|v_old(#memory_int)_AFTER_CALL_5| (Array Int (Array Int Int))) (|v_#memory_int_446| (Array Int (Array Int Int))) (|v_#memory_int_441| (Array Int (Array Int Int))) (|v_#memory_int_443| (Array Int (Array Int Int)))) (and (= (store |v_#memory_int_445| |ULTIMATE.start_main_~user~0#1.base| (store (select |v_#memory_int_445| |ULTIMATE.start_main_~user~0#1.base|) 12 (select (select |v_#memory_int_446| |ULTIMATE.start_main_~user~0#1.base|) 12))) |v_#memory_int_446|) (= (store |v_#memory_int_443| |ULTIMATE.start_main_~user~0#1.base| (store (store (select |v_#memory_int_443| |ULTIMATE.start_main_~user~0#1.base|) 32 4) 16 (select (select |v_#memory_int_445| |ULTIMATE.start_main_~user~0#1.base|) 16))) |v_#memory_int_445|) (= |v_old(#memory_int)_AFTER_CALL_5| (store |v_#memory_int_446| |ULTIMATE.start_main_~user~0#1.base| (store (select |v_#memory_int_446| |ULTIMATE.start_main_~user~0#1.base|) 8 (select (select |v_old(#memory_int)_AFTER_CALL_5| |ULTIMATE.start_main_~user~0#1.base|) 8)))) (= (store |v_#memory_int_441| |ULTIMATE.start_main_~user~0#1.base| (store (store (select |v_#memory_int_441| |ULTIMATE.start_main_~user~0#1.base|) 36 |ULTIMATE.start_main_~_ha_hashv~0#1|) 28 (select (select |v_#memory_int_443| |ULTIMATE.start_main_~user~0#1.base|) 28))) |v_#memory_int_443|))) (exists ((|v_#memory_$Pointer$.offset_328| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_329| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_331| (Array Int (Array Int Int)))) (and (= |v_#memory_$Pointer$.offset_331| (store |v_#memory_$Pointer$.offset_329| |ULTIMATE.start_main_~user~0#1.base| (store (store (select |v_#memory_$Pointer$.offset_329| |ULTIMATE.start_main_~user~0#1.base|) 28 0) 32 (select (select |v_#memory_$Pointer$.offset_331| |ULTIMATE.start_main_~user~0#1.base|) 32)))) (= (store |v_#memory_$Pointer$.offset_328| |ULTIMATE.start_main_~user~0#1.base| (store (select |v_#memory_$Pointer$.offset_328| |ULTIMATE.start_main_~user~0#1.base|) 36 (select (select |v_#memory_$Pointer$.offset_329| |ULTIMATE.start_main_~user~0#1.base|) 36))) |v_#memory_$Pointer$.offset_329|))) (exists ((|v_#Ultimate.C_memset_#t~loopctr228_30| Int)) (and (<= 0 |v_#Ultimate.C_memset_#t~loopctr228_30|) (<= 44 (mod |v_#Ultimate.C_memset_#t~loopctr228_30| 4294967296))))) (and (exists ((|v_old(#memory_$Pointer$.base)_AFTER_CALL_6| (Array Int (Array Int Int))) (|v_#length_623| (Array Int Int)) (|v_#memory_$Pointer$.base_335| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_333| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_332| (Array Int (Array Int Int))) (|v_#valid_638| (Array Int Int))) (and (= |v_old(#memory_$Pointer$.base)_AFTER_CALL_6| (store |v_#memory_$Pointer$.base_335| |ULTIMATE.start_main_~user~0#1.base| (store (store (store (select |v_#memory_$Pointer$.base_335| |ULTIMATE.start_main_~user~0#1.base|) 16 0) 12 0) 8 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_6| |ULTIMATE.start_main_~user~0#1.base|) 8)))) (<= (+ (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_6| |ULTIMATE.start_main_~user~0#1.base|) 8) 1) |#StackHeapBarrier|) (= (store |v_#valid_638| (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_6| |ULTIMATE.start_main_~user~0#1.base|) 8) 1) |#valid|) (= (select |v_#valid_638| |ULTIMATE.start_main_~user~0#1.base|) 1) (= (store |v_#memory_$Pointer$.base_333| |ULTIMATE.start_main_~user~0#1.base| (store (store (select |v_#memory_$Pointer$.base_333| |ULTIMATE.start_main_~user~0#1.base|) 28 |ULTIMATE.start_main_~user~0#1.base|) 32 (select (select |v_#memory_$Pointer$.base_335| |ULTIMATE.start_main_~user~0#1.base|) 32))) |v_#memory_$Pointer$.base_335|) (= (select |v_#valid_638| (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_6| |ULTIMATE.start_main_~user~0#1.base|) 8)) 0) (= (store |v_#memory_$Pointer$.base_332| |ULTIMATE.start_main_~user~0#1.base| (store (select |v_#memory_$Pointer$.base_332| |ULTIMATE.start_main_~user~0#1.base|) 36 (select (select |v_#memory_$Pointer$.base_333| |ULTIMATE.start_main_~user~0#1.base|) 36))) |v_#memory_$Pointer$.base_333|) (not (= (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_6| |ULTIMATE.start_main_~user~0#1.base|) 8) 0)) (<= 40 (select |v_#length_623| |ULTIMATE.start_main_~user~0#1.base|)) (= (store |v_#length_623| (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_6| |ULTIMATE.start_main_~user~0#1.base|) 8) 44) |#length|))) (exists ((|v_#memory_int_445| (Array Int (Array Int Int))) (|v_#memory_int_446| (Array Int (Array Int Int))) (|v_#memory_int_441| (Array Int (Array Int Int))) (|v_old(#memory_int)_AFTER_CALL_6| (Array Int (Array Int Int))) (|v_#memory_int_443| (Array Int (Array Int Int)))) (and (= (store |v_#memory_int_445| |ULTIMATE.start_main_~user~0#1.base| (store (select |v_#memory_int_445| |ULTIMATE.start_main_~user~0#1.base|) 12 (select (select |v_#memory_int_446| |ULTIMATE.start_main_~user~0#1.base|) 12))) |v_#memory_int_446|) (= |v_old(#memory_int)_AFTER_CALL_6| (store |v_#memory_int_446| |ULTIMATE.start_main_~user~0#1.base| (store (select |v_#memory_int_446| |ULTIMATE.start_main_~user~0#1.base|) 8 (select (select |v_old(#memory_int)_AFTER_CALL_6| |ULTIMATE.start_main_~user~0#1.base|) 8)))) (= (store |v_#memory_int_443| |ULTIMATE.start_main_~user~0#1.base| (store (store (select |v_#memory_int_443| |ULTIMATE.start_main_~user~0#1.base|) 32 4) 16 (select (select |v_#memory_int_445| |ULTIMATE.start_main_~user~0#1.base|) 16))) |v_#memory_int_445|) (= (store |v_#memory_int_441| |ULTIMATE.start_main_~user~0#1.base| (store (store (select |v_#memory_int_441| |ULTIMATE.start_main_~user~0#1.base|) 36 |ULTIMATE.start_main_~_ha_hashv~0#1|) 28 (select (select |v_#memory_int_443| |ULTIMATE.start_main_~user~0#1.base|) 28))) |v_#memory_int_443|))) (exists ((|v_#memory_$Pointer$.offset_328| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_329| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_331| (Array Int (Array Int Int)))) (and (= |v_#memory_$Pointer$.offset_331| (store |v_#memory_$Pointer$.offset_329| |ULTIMATE.start_main_~user~0#1.base| (store (store (select |v_#memory_$Pointer$.offset_329| |ULTIMATE.start_main_~user~0#1.base|) 28 0) 32 (select (select |v_#memory_$Pointer$.offset_331| |ULTIMATE.start_main_~user~0#1.base|) 32)))) (= (store |v_#memory_$Pointer$.offset_328| |ULTIMATE.start_main_~user~0#1.base| (store (select |v_#memory_$Pointer$.offset_328| |ULTIMATE.start_main_~user~0#1.base|) 36 (select (select |v_#memory_$Pointer$.offset_329| |ULTIMATE.start_main_~user~0#1.base|) 36))) |v_#memory_$Pointer$.offset_329|))) (exists ((|v_#Ultimate.C_memset_#t~loopctr228_30| Int)) (and (<= 0 |v_#Ultimate.C_memset_#t~loopctr228_30|) (<= 44 (mod |v_#Ultimate.C_memset_#t~loopctr228_30| 4294967296)))))) (or (< (+ 16 (select (select |#memory_$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$.offset| |ULTIMATE.start_main_~user~0#1.base|) 8) 20))) (<= 2 |ULTIMATE.start_main_~#i~0#1.base|) (= |ULTIMATE.start_main_~user~0#1.offset| 0) (= ~count_int_int~0 0) (= |ULTIMATE.start_main_~#i~0#1.offset| 0))' at error location [2024-11-09 07:12:06,194 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:12:06,195 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 07:12:06,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 14 [2024-11-09 07:12:06,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819813689] [2024-11-09 07:12:06,195 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 07:12:06,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 07:12:06,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:12:06,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 07:12:06,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=263, Invalid=2487, Unknown=112, NotChecked=0, Total=2862 [2024-11-09 07:12:06,198 INFO L87 Difference]: Start difference. First operand 5062 states and 9422 transitions. Second operand has 15 states, 12 states have (on average 8.666666666666666) internal successors, (104), 15 states have internal predecessors, (104), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:12:08,470 WARN L539 Checker$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 07:12:10,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:12:12,483 WARN L539 Checker$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 07:12:14,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:12:16,489 WARN L539 Checker$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 07:12:18,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:12:24,524 WARN L539 Checker$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 07:12:26,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:12:28,531 WARN L539 Checker$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 07:12:30,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:12:32,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:12:34,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:12:36,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:12:38,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:12:40,180 WARN L539 Checker$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 07:13:00,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:13:00,940 INFO L93 Difference]: Finished difference Result 5063 states and 9425 transitions. [2024-11-09 07:13:00,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 07:13:00,941 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 8.666666666666666) internal successors, (104), 15 states have internal predecessors, (104), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 64 [2024-11-09 07:13:00,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:13:00,959 INFO L225 Difference]: With dead ends: 5063 [2024-11-09 07:13:00,959 INFO L226 Difference]: Without dead ends: 5063 [2024-11-09 07:13:00,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 89 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1089 ImplicationChecksByTransitivity, 194.1s TimeCoverageRelationStatistics Valid=297, Invalid=2896, Unknown=113, NotChecked=0, Total=3306 [2024-11-09 07:13:00,961 INFO L432 NwaCegarLoop]: 2306 mSDtfsCounter, 1593 mSDsluCounter, 9228 mSDsCounter, 0 mSdLazyCounter, 7074 mSolverCounterSat, 1018 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2097 SdHoareTripleChecker+Valid, 11534 SdHoareTripleChecker+Invalid, 8105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1018 IncrementalHoareTripleChecker+Valid, 7074 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:13:00,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2097 Valid, 11534 Invalid, 8105 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1018 Valid, 7074 Invalid, 13 Unknown, 0 Unchecked, 54.0s Time] [2024-11-09 07:13:00,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5063 states. [2024-11-09 07:13:01,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5063 to 5053. [2024-11-09 07:13:01,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5053 states, 2761 states have (on average 1.95508873596523) internal successors, (5398), 5043 states have internal predecessors, (5398), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 3 states have return successors, (2005), 9 states have call predecessors, (2005), 2005 states have call successors, (2005) [2024-11-09 07:13:01,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5053 states to 5053 states and 9410 transitions. [2024-11-09 07:13:01,670 INFO L78 Accepts]: Start accepts. Automaton has 5053 states and 9410 transitions. Word has length 64 [2024-11-09 07:13:01,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:13:01,671 INFO L471 AbstractCegarLoop]: Abstraction has 5053 states and 9410 transitions. [2024-11-09 07:13:01,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 8.666666666666666) internal successors, (104), 15 states have internal predecessors, (104), 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 07:13:01,671 INFO L276 IsEmpty]: Start isEmpty. Operand 5053 states and 9410 transitions. [2024-11-09 07:13:01,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 07:13:01,672 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:13:01,672 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:13:01,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0830202d-bd7e-43bf-84d6-4b7e3111f3ef/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 07:13:01,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0830202d-bd7e-43bf-84d6-4b7e3111f3ef/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-09 07:13:01,874 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr84REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-09 07:13:01,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:13:01,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1270598073, now seen corresponding path program 1 times [2024-11-09 07:13:01,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:13:01,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569066040] [2024-11-09 07:13:01,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:13:01,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:13:01,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:13:03,181 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 07:13:03,181 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:13:03,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569066040] [2024-11-09 07:13:03,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569066040] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:13:03,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:13:03,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-09 07:13:03,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335757367] [2024-11-09 07:13:03,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:13:03,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 07:13:03,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:13:03,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 07:13:03,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-09 07:13:03,183 INFO L87 Difference]: Start difference. First operand 5053 states and 9410 transitions. Second operand has 14 states, 12 states have (on average 5.25) internal successors, (63), 13 states have internal predecessors, (63), 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 07:13:05,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:13:12,496 WARN L539 Checker$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 07:13:44,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:13:44,326 INFO L93 Difference]: Finished difference Result 5068 states and 9431 transitions. [2024-11-09 07:13:44,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 07:13:44,326 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.25) internal successors, (63), 13 states have internal predecessors, (63), 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 65 [2024-11-09 07:13:44,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:13:44,372 INFO L225 Difference]: With dead ends: 5068 [2024-11-09 07:13:44,373 INFO L226 Difference]: Without dead ends: 5068 [2024-11-09 07:13:44,373 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2024-11-09 07:13:44,374 INFO L432 NwaCegarLoop]: 2303 mSDtfsCounter, 1598 mSDsluCounter, 14410 mSDsCounter, 0 mSdLazyCounter, 12503 mSolverCounterSat, 513 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2102 SdHoareTripleChecker+Valid, 16713 SdHoareTripleChecker+Invalid, 13018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 513 IncrementalHoareTripleChecker+Valid, 12503 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.4s IncrementalHoareTripleChecker+Time [2024-11-09 07:13:44,374 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2102 Valid, 16713 Invalid, 13018 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [513 Valid, 12503 Invalid, 2 Unknown, 0 Unchecked, 40.4s Time] [2024-11-09 07:13:44,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5068 states. [2024-11-09 07:13:45,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5068 to 5065. [2024-11-09 07:13:45,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5065 states, 2772 states have (on average 1.9523809523809523) internal successors, (5412), 5053 states have internal predecessors, (5412), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2024-11-09 07:13:45,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5065 states to 5065 states and 9426 transitions. [2024-11-09 07:13:45,233 INFO L78 Accepts]: Start accepts. Automaton has 5065 states and 9426 transitions. Word has length 65 [2024-11-09 07:13:45,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:13:45,234 INFO L471 AbstractCegarLoop]: Abstraction has 5065 states and 9426 transitions. [2024-11-09 07:13:45,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.25) internal successors, (63), 13 states have internal predecessors, (63), 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 07:13:45,234 INFO L276 IsEmpty]: Start isEmpty. Operand 5065 states and 9426 transitions. [2024-11-09 07:13:45,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 07:13:45,235 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:13:45,235 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:13:45,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 07:13:45,236 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr85REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-09 07:13:45,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:13:45,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1270598072, now seen corresponding path program 1 times [2024-11-09 07:13:45,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:13:45,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775632514] [2024-11-09 07:13:45,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:13:45,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:13:45,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:13:46,870 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 07:13:46,870 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:13:46,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775632514] [2024-11-09 07:13:46,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775632514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:13:46,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:13:46,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-09 07:13:46,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827037172] [2024-11-09 07:13:46,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:13:46,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 07:13:46,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:13:46,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 07:13:46,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-09 07:13:46,873 INFO L87 Difference]: Start difference. First operand 5065 states and 9426 transitions. Second operand has 11 states, 10 states have (on average 6.3) internal successors, (63), 11 states have internal predecessors, (63), 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 07:13:49,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:13:51,111 WARN L539 Checker$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 07:13:53,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:13:55,119 WARN L539 Checker$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 07:13:57,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:13:59,124 WARN L539 Checker$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 07:14:01,128 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 []