./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b29c7049a333b10d890b8afae901738020ed1f084c2a7d471b316f0abdba3430 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:46:55,796 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:46:55,850 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-12-02 13:46:55,855 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:46:55,855 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:46:55,876 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:46:55,876 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:46:55,877 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:46:55,877 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:46:55,877 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:46:55,877 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:46:55,877 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:46:55,878 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:46:55,878 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:46:55,878 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:46:55,878 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:46:55,878 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 13:46:55,878 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 13:46:55,878 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 13:46:55,878 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:46:55,878 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-02 13:46:55,878 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-02 13:46:55,878 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-12-02 13:46:55,878 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:46:55,879 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 13:46:55,879 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 13:46:55,879 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 13:46:55,879 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:46:55,879 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:46:55,879 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:46:55,879 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:46:55,879 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:46:55,879 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:46:55,879 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:46:55,879 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:46:55,879 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:46:55,879 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:46:55,880 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:46:55,880 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:46:55,880 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:46:55,880 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:46:55,880 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 13:46:55,880 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 13:46:55,880 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:46:55,880 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:46:55,880 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:46:55,880 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:46:55,880 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b29c7049a333b10d890b8afae901738020ed1f084c2a7d471b316f0abdba3430 [2024-12-02 13:46:56,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:46:56,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:46:56,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:46:56,130 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:46:56,130 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:46:56,131 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i [2024-12-02 13:46:58,779 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/data/7450a013d/79550dabeff24eb68c38a6ab9035027f/FLAG1567adac1 [2024-12-02 13:46:59,044 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:46:59,045 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i [2024-12-02 13:46:59,059 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/data/7450a013d/79550dabeff24eb68c38a6ab9035027f/FLAG1567adac1 [2024-12-02 13:46:59,341 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/data/7450a013d/79550dabeff24eb68c38a6ab9035027f [2024-12-02 13:46:59,343 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:46:59,344 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:46:59,345 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:46:59,345 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:46:59,348 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:46:59,348 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:46:59" (1/1) ... [2024-12-02 13:46:59,349 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14328148 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:46:59, skipping insertion in model container [2024-12-02 13:46:59,349 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:46:59" (1/1) ... [2024-12-02 13:46:59,379 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:46:59,744 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:46:59,774 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:46:59,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:46:59,880 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:46:59,880 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:46:59 WrapperNode [2024-12-02 13:46:59,881 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:46:59,881 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:46:59,881 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:46:59,881 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:46:59,886 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:46:59" (1/1) ... [2024-12-02 13:46:59,900 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:46:59" (1/1) ... [2024-12-02 13:46:59,922 INFO L138 Inliner]: procedures = 370, calls = 86, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 177 [2024-12-02 13:46:59,923 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:46:59,923 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:46:59,923 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:46:59,923 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:46:59,930 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:46:59" (1/1) ... [2024-12-02 13:46:59,930 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:46:59" (1/1) ... [2024-12-02 13:46:59,934 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:46:59" (1/1) ... [2024-12-02 13:46:59,953 INFO L175 MemorySlicer]: Split 78 memory accesses to 3 slices as follows [50, 14, 14]. 64 percent of accesses are in the largest equivalence class. The 60 initializations are split as follows [50, 10, 0]. The 11 writes are split as follows [0, 1, 10]. [2024-12-02 13:46:59,953 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:46:59" (1/1) ... [2024-12-02 13:46:59,953 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:46:59" (1/1) ... [2024-12-02 13:46:59,964 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:46:59" (1/1) ... [2024-12-02 13:46:59,965 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:46:59" (1/1) ... [2024-12-02 13:46:59,968 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:46:59" (1/1) ... [2024-12-02 13:46:59,970 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:46:59" (1/1) ... [2024-12-02 13:46:59,971 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:46:59" (1/1) ... [2024-12-02 13:46:59,974 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:46:59,975 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:46:59,975 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:46:59,975 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:46:59,976 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:46:59" (1/1) ... [2024-12-02 13:46:59,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:46:59,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:46:59,999 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 13:47:00,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 13:47:00,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 13:47:00,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 13:47:00,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 13:47:00,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-12-02 13:47:00,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-12-02 13:47:00,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-12-02 13:47:00,022 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-12-02 13:47:00,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 13:47:00,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 13:47:00,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 13:47:00,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 13:47:00,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 13:47:00,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 13:47:00,022 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-12-02 13:47:00,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 13:47:00,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:47:00,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 13:47:00,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 13:47:00,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 13:47:00,023 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-12-02 13:47:00,023 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-12-02 13:47:00,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 13:47:00,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 13:47:00,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 13:47:00,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:47:00,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:47:00,025 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-02 13:47:00,168 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:47:00,170 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:47:00,525 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 13:47:00,525 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:47:00,836 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:47:00,836 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-12-02 13:47:00,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:47:00 BoogieIcfgContainer [2024-12-02 13:47:00,837 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:47:00,839 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 13:47:00,839 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 13:47:00,843 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 13:47:00,843 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:46:59" (1/3) ... [2024-12-02 13:47:00,844 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fafb267 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:47:00, skipping insertion in model container [2024-12-02 13:47:00,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:46:59" (2/3) ... [2024-12-02 13:47:00,844 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fafb267 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:47:00, skipping insertion in model container [2024-12-02 13:47:00,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:47:00" (3/3) ... [2024-12-02 13:47:00,845 INFO L128 eAbstractionObserver]: Analyzing ICFG 09-regions_17-arrayloop_nr.i [2024-12-02 13:47:00,861 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 13:47:00,862 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 09-regions_17-arrayloop_nr.i that has 2 procedures, 73 locations, 1 initial locations, 3 loop locations, and 37 error locations. [2024-12-02 13:47:00,862 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 13:47:00,918 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-12-02 13:47:00,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 75 transitions, 154 flow [2024-12-02 13:47:00,987 INFO L124 PetriNetUnfolderBase]: 3/74 cut-off events. [2024-12-02 13:47:00,989 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 13:47:00,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 74 events. 3/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 241 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place. [2024-12-02 13:47:00,992 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 75 transitions, 154 flow [2024-12-02 13:47:00,996 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 74 transitions, 151 flow [2024-12-02 13:47:01,002 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 13:47:01,013 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@482a38fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 13:47:01,013 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2024-12-02 13:47:01,019 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 13:47:01,019 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-12-02 13:47:01,019 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 13:47:01,019 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:47:01,020 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-12-02 13:47:01,020 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 47 more)] === [2024-12-02 13:47:01,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:47:01,025 INFO L85 PathProgramCache]: Analyzing trace with hash 488191, now seen corresponding path program 1 times [2024-12-02 13:47:01,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:47:01,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839372128] [2024-12-02 13:47:01,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:47:01,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:47:01,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:47:01,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:47:01,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:47:01,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839372128] [2024-12-02 13:47:01,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839372128] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:47:01,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:47:01,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 13:47:01,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989723348] [2024-12-02 13:47:01,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:47:01,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:47:01,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:47:01,319 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:47:01,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:47:01,392 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 75 [2024-12-02 13:47:01,394 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 74 transitions, 151 flow. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2024-12-02 13:47:01,394 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:47:01,394 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 75 [2024-12-02 13:47:01,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:47:01,622 INFO L124 PetriNetUnfolderBase]: 142/528 cut-off events. [2024-12-02 13:47:01,622 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 13:47:01,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 820 conditions, 528 events. 142/528 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 3281 event pairs, 99 based on Foata normal form. 0/402 useless extension candidates. Maximal degree in co-relation 797. Up to 246 conditions per place. [2024-12-02 13:47:01,628 INFO L140 encePairwiseOnDemand]: 67/75 looper letters, 37 selfloop transitions, 4 changer transitions 0/80 dead transitions. [2024-12-02 13:47:01,628 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 80 transitions, 245 flow [2024-12-02 13:47:01,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:47:01,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 13:47:01,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 165 transitions. [2024-12-02 13:47:01,641 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7333333333333333 [2024-12-02 13:47:01,642 INFO L175 Difference]: Start difference. First operand has 75 places, 74 transitions, 151 flow. Second operand 3 states and 165 transitions. [2024-12-02 13:47:01,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 80 transitions, 245 flow [2024-12-02 13:47:01,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 80 transitions, 244 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 13:47:01,650 INFO L231 Difference]: Finished difference. Result has 72 places, 70 transitions, 150 flow [2024-12-02 13:47:01,652 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=150, PETRI_PLACES=72, PETRI_TRANSITIONS=70} [2024-12-02 13:47:01,655 INFO L279 CegarLoopForPetriNet]: 75 programPoint places, -3 predicate places. [2024-12-02 13:47:01,655 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 70 transitions, 150 flow [2024-12-02 13:47:01,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2024-12-02 13:47:01,656 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:47:01,656 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-12-02 13:47:01,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 13:47:01,656 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 47 more)] === [2024-12-02 13:47:01,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:47:01,657 INFO L85 PathProgramCache]: Analyzing trace with hash 488192, now seen corresponding path program 1 times [2024-12-02 13:47:01,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:47:01,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301246082] [2024-12-02 13:47:01,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:47:01,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:47:01,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:47:01,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:47:01,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:47:01,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301246082] [2024-12-02 13:47:01,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301246082] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:47:01,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:47:01,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 13:47:01,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028485263] [2024-12-02 13:47:01,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:47:01,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:47:01,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:47:01,778 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:47:01,778 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:47:01,839 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 75 [2024-12-02 13:47:01,840 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 70 transitions, 150 flow. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 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) [2024-12-02 13:47:01,840 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:47:01,840 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 75 [2024-12-02 13:47:01,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:47:01,996 INFO L124 PetriNetUnfolderBase]: 132/496 cut-off events. [2024-12-02 13:47:01,996 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-12-02 13:47:01,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 789 conditions, 496 events. 132/496 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3029 event pairs, 99 based on Foata normal form. 22/393 useless extension candidates. Maximal degree in co-relation 767. Up to 246 conditions per place. [2024-12-02 13:47:01,999 INFO L140 encePairwiseOnDemand]: 67/75 looper letters, 35 selfloop transitions, 4 changer transitions 0/76 dead transitions. [2024-12-02 13:47:01,999 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 76 transitions, 240 flow [2024-12-02 13:47:02,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:47:02,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 13:47:02,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 169 transitions. [2024-12-02 13:47:02,001 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7511111111111111 [2024-12-02 13:47:02,001 INFO L175 Difference]: Start difference. First operand has 72 places, 70 transitions, 150 flow. Second operand 3 states and 169 transitions. [2024-12-02 13:47:02,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 76 transitions, 240 flow [2024-12-02 13:47:02,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 76 transitions, 232 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 13:47:02,003 INFO L231 Difference]: Finished difference. Result has 68 places, 66 transitions, 142 flow [2024-12-02 13:47:02,003 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=68, PETRI_TRANSITIONS=66} [2024-12-02 13:47:02,004 INFO L279 CegarLoopForPetriNet]: 75 programPoint places, -7 predicate places. [2024-12-02 13:47:02,004 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 66 transitions, 142 flow [2024-12-02 13:47:02,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 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) [2024-12-02 13:47:02,004 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:47:02,005 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-12-02 13:47:02,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 13:47:02,005 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 47 more)] === [2024-12-02 13:47:02,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:47:02,005 INFO L85 PathProgramCache]: Analyzing trace with hash 469165766, now seen corresponding path program 1 times [2024-12-02 13:47:02,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:47:02,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964736604] [2024-12-02 13:47:02,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:47:02,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:47:02,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:47:02,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:47:02,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:47:02,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964736604] [2024-12-02 13:47:02,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964736604] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:47:02,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:47:02,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:47:02,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607864767] [2024-12-02 13:47:02,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:47:02,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:47:02,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:47:02,213 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:47:02,213 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:47:02,350 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 75 [2024-12-02 13:47:02,351 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 66 transitions, 142 flow. Second operand has 6 states, 6 states have (on average 39.833333333333336) internal successors, (239), 6 states have internal predecessors, (239), 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) [2024-12-02 13:47:02,351 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:47:02,351 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 75 [2024-12-02 13:47:02,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:47:02,512 INFO L124 PetriNetUnfolderBase]: 152/522 cut-off events. [2024-12-02 13:47:02,513 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2024-12-02 13:47:02,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 856 conditions, 522 events. 152/522 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3089 event pairs, 126 based on Foata normal form. 0/412 useless extension candidates. Maximal degree in co-relation 834. Up to 307 conditions per place. [2024-12-02 13:47:02,517 INFO L140 encePairwiseOnDemand]: 70/75 looper letters, 31 selfloop transitions, 1 changer transitions 0/62 dead transitions. [2024-12-02 13:47:02,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 62 transitions, 198 flow [2024-12-02 13:47:02,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:47:02,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 13:47:02,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 153 transitions. [2024-12-02 13:47:02,518 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.68 [2024-12-02 13:47:02,519 INFO L175 Difference]: Start difference. First operand has 68 places, 66 transitions, 142 flow. Second operand 3 states and 153 transitions. [2024-12-02 13:47:02,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 62 transitions, 198 flow [2024-12-02 13:47:02,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 62 transitions, 190 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 13:47:02,521 INFO L231 Difference]: Finished difference. Result has 64 places, 62 transitions, 128 flow [2024-12-02 13:47:02,521 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=64, PETRI_TRANSITIONS=62} [2024-12-02 13:47:02,521 INFO L279 CegarLoopForPetriNet]: 75 programPoint places, -11 predicate places. [2024-12-02 13:47:02,522 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 62 transitions, 128 flow [2024-12-02 13:47:02,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.833333333333336) internal successors, (239), 6 states have internal predecessors, (239), 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) [2024-12-02 13:47:02,522 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:47:02,522 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-12-02 13:47:02,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 13:47:02,522 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 47 more)] === [2024-12-02 13:47:02,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:47:02,523 INFO L85 PathProgramCache]: Analyzing trace with hash 469165767, now seen corresponding path program 1 times [2024-12-02 13:47:02,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:47:02,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494698154] [2024-12-02 13:47:02,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:47:02,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:47:02,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:47:02,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:47:02,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:47:02,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494698154] [2024-12-02 13:47:02,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494698154] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:47:02,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:47:02,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:47:02,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270238038] [2024-12-02 13:47:02,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:47:02,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:47:02,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:47:02,761 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:47:02,761 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:47:02,966 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 75 [2024-12-02 13:47:02,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 62 transitions, 128 flow. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-12-02 13:47:02,967 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:47:02,967 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 75 [2024-12-02 13:47:02,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:47:03,142 INFO L124 PetriNetUnfolderBase]: 152/525 cut-off events. [2024-12-02 13:47:03,142 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 13:47:03,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 841 conditions, 525 events. 152/525 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3114 event pairs, 126 based on Foata normal form. 0/401 useless extension candidates. Maximal degree in co-relation 835. Up to 308 conditions per place. [2024-12-02 13:47:03,145 INFO L140 encePairwiseOnDemand]: 69/75 looper letters, 31 selfloop transitions, 4 changer transitions 0/65 dead transitions. [2024-12-02 13:47:03,145 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 65 transitions, 204 flow [2024-12-02 13:47:03,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:47:03,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 13:47:03,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 177 transitions. [2024-12-02 13:47:03,146 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.59 [2024-12-02 13:47:03,147 INFO L175 Difference]: Start difference. First operand has 64 places, 62 transitions, 128 flow. Second operand 4 states and 177 transitions. [2024-12-02 13:47:03,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 65 transitions, 204 flow [2024-12-02 13:47:03,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 65 transitions, 203 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 13:47:03,150 INFO L231 Difference]: Finished difference. Result has 68 places, 65 transitions, 157 flow [2024-12-02 13:47:03,150 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=157, PETRI_PLACES=68, PETRI_TRANSITIONS=65} [2024-12-02 13:47:03,151 INFO L279 CegarLoopForPetriNet]: 75 programPoint places, -7 predicate places. [2024-12-02 13:47:03,151 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 65 transitions, 157 flow [2024-12-02 13:47:03,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-12-02 13:47:03,152 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:47:03,152 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-12-02 13:47:03,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 13:47:03,152 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 47 more)] === [2024-12-02 13:47:03,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:47:03,152 INFO L85 PathProgramCache]: Analyzing trace with hash -436732509, now seen corresponding path program 1 times [2024-12-02 13:47:03,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:47:03,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989212133] [2024-12-02 13:47:03,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:47:03,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:47:03,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:47:03,459 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:47:03,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:47:03,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989212133] [2024-12-02 13:47:03,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989212133] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:47:03,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839528093] [2024-12-02 13:47:03,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:47:03,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:47:03,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:47:03,462 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:47:03,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 13:47:03,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:47:03,597 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 13:47:03,600 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:47:03,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:47:03,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 9 [2024-12-02 13:47:03,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:47:03,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 9 [2024-12-02 13:47:03,823 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:47:03,823 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:47:03,979 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:47:03,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 61 [2024-12-02 13:47:04,123 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:47:04,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [839528093] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:47:04,124 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:47:04,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 13 [2024-12-02 13:47:04,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665658849] [2024-12-02 13:47:04,124 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:47:04,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 13:47:04,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:47:04,125 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 13:47:04,125 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-12-02 13:47:05,352 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 75 [2024-12-02 13:47:05,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 65 transitions, 157 flow. Second operand has 15 states, 15 states have (on average 35.4) internal successors, (531), 15 states have internal predecessors, (531), 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) [2024-12-02 13:47:05,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:47:05,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 75 [2024-12-02 13:47:05,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:47:06,001 INFO L124 PetriNetUnfolderBase]: 174/550 cut-off events. [2024-12-02 13:47:06,001 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-12-02 13:47:06,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 948 conditions, 550 events. 174/550 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 3122 event pairs, 0 based on Foata normal form. 0/455 useless extension candidates. Maximal degree in co-relation 939. Up to 188 conditions per place. [2024-12-02 13:47:06,004 INFO L140 encePairwiseOnDemand]: 65/75 looper letters, 59 selfloop transitions, 11 changer transitions 0/99 dead transitions. [2024-12-02 13:47:06,005 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 99 transitions, 391 flow [2024-12-02 13:47:06,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 13:47:06,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-12-02 13:47:06,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 313 transitions. [2024-12-02 13:47:06,006 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5961904761904762 [2024-12-02 13:47:06,006 INFO L175 Difference]: Start difference. First operand has 68 places, 65 transitions, 157 flow. Second operand 7 states and 313 transitions. [2024-12-02 13:47:06,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 99 transitions, 391 flow [2024-12-02 13:47:06,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 99 transitions, 389 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 13:47:06,009 INFO L231 Difference]: Finished difference. Result has 76 places, 71 transitions, 229 flow [2024-12-02 13:47:06,009 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=229, PETRI_PLACES=76, PETRI_TRANSITIONS=71} [2024-12-02 13:47:06,009 INFO L279 CegarLoopForPetriNet]: 75 programPoint places, 1 predicate places. [2024-12-02 13:47:06,010 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 71 transitions, 229 flow [2024-12-02 13:47:06,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 35.4) internal successors, (531), 15 states have internal predecessors, (531), 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) [2024-12-02 13:47:06,010 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:47:06,010 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-12-02 13:47:06,020 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 13:47:06,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:47:06,211 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 47 more)] === [2024-12-02 13:47:06,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:47:06,211 INFO L85 PathProgramCache]: Analyzing trace with hash 702455720, now seen corresponding path program 1 times [2024-12-02 13:47:06,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:47:06,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832865615] [2024-12-02 13:47:06,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:47:06,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:47:06,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:47:06,282 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 13:47:06,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:47:06,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832865615] [2024-12-02 13:47:06,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832865615] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:47:06,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:47:06,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:47:06,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499634146] [2024-12-02 13:47:06,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:47:06,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:47:06,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:47:06,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:47:06,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:47:06,292 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 75 [2024-12-02 13:47:06,292 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 71 transitions, 229 flow. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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) [2024-12-02 13:47:06,292 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:47:06,292 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 75 [2024-12-02 13:47:06,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:47:06,487 INFO L124 PetriNetUnfolderBase]: 254/916 cut-off events. [2024-12-02 13:47:06,488 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2024-12-02 13:47:06,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1611 conditions, 916 events. 254/916 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 5547 event pairs, 153 based on Foata normal form. 10/742 useless extension candidates. Maximal degree in co-relation 1597. Up to 300 conditions per place. [2024-12-02 13:47:06,493 INFO L140 encePairwiseOnDemand]: 70/75 looper letters, 53 selfloop transitions, 6 changer transitions 0/91 dead transitions. [2024-12-02 13:47:06,493 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 91 transitions, 393 flow [2024-12-02 13:47:06,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:47:06,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 13:47:06,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 191 transitions. [2024-12-02 13:47:06,494 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8488888888888889 [2024-12-02 13:47:06,495 INFO L175 Difference]: Start difference. First operand has 76 places, 71 transitions, 229 flow. Second operand 3 states and 191 transitions. [2024-12-02 13:47:06,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 91 transitions, 393 flow [2024-12-02 13:47:06,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 91 transitions, 385 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-12-02 13:47:06,498 INFO L231 Difference]: Finished difference. Result has 78 places, 72 transitions, 248 flow [2024-12-02 13:47:06,498 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=248, PETRI_PLACES=78, PETRI_TRANSITIONS=72} [2024-12-02 13:47:06,499 INFO L279 CegarLoopForPetriNet]: 75 programPoint places, 3 predicate places. [2024-12-02 13:47:06,499 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 72 transitions, 248 flow [2024-12-02 13:47:06,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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) [2024-12-02 13:47:06,499 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:47:06,499 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:47:06,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 13:47:06,499 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 47 more)] === [2024-12-02 13:47:06,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:47:06,500 INFO L85 PathProgramCache]: Analyzing trace with hash 796562441, now seen corresponding path program 1 times [2024-12-02 13:47:06,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:47:06,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082536141] [2024-12-02 13:47:06,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:47:06,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:47:06,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:47:06,595 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:47:06,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:47:06,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082536141] [2024-12-02 13:47:06,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082536141] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:47:06,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666223680] [2024-12-02 13:47:06,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:47:06,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:47:06,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:47:06,598 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:47:06,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 13:47:06,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:47:06,731 INFO L256 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:47:06,732 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:47:06,751 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:47:06,752 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:47:06,783 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:47:06,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [666223680] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:47:06,784 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:47:06,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-12-02 13:47:06,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439410597] [2024-12-02 13:47:06,784 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:47:06,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 13:47:06,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:47:06,785 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 13:47:06,785 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-12-02 13:47:06,816 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 75 [2024-12-02 13:47:06,816 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 72 transitions, 248 flow. Second operand has 9 states, 9 states have (on average 47.666666666666664) internal successors, (429), 9 states have internal predecessors, (429), 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) [2024-12-02 13:47:06,816 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:47:06,817 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 75 [2024-12-02 13:47:06,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:47:07,416 INFO L124 PetriNetUnfolderBase]: 702/2307 cut-off events. [2024-12-02 13:47:07,416 INFO L125 PetriNetUnfolderBase]: For 221/221 co-relation queries the response was YES. [2024-12-02 13:47:07,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4077 conditions, 2307 events. 702/2307 cut-off events. For 221/221 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 13132 event pairs, 27 based on Foata normal form. 50/1982 useless extension candidates. Maximal degree in co-relation 4061. Up to 234 conditions per place. [2024-12-02 13:47:07,424 INFO L140 encePairwiseOnDemand]: 67/75 looper letters, 146 selfloop transitions, 16 changer transitions 0/193 dead transitions. [2024-12-02 13:47:07,424 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 193 transitions, 869 flow [2024-12-02 13:47:07,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 13:47:07,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-12-02 13:47:07,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 531 transitions. [2024-12-02 13:47:07,426 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.885 [2024-12-02 13:47:07,427 INFO L175 Difference]: Start difference. First operand has 78 places, 72 transitions, 248 flow. Second operand 8 states and 531 transitions. [2024-12-02 13:47:07,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 193 transitions, 869 flow [2024-12-02 13:47:07,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 193 transitions, 863 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-12-02 13:47:07,432 INFO L231 Difference]: Finished difference. Result has 90 places, 77 transitions, 350 flow [2024-12-02 13:47:07,432 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=350, PETRI_PLACES=90, PETRI_TRANSITIONS=77} [2024-12-02 13:47:07,433 INFO L279 CegarLoopForPetriNet]: 75 programPoint places, 15 predicate places. [2024-12-02 13:47:07,433 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 77 transitions, 350 flow [2024-12-02 13:47:07,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 47.666666666666664) internal successors, (429), 9 states have internal predecessors, (429), 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) [2024-12-02 13:47:07,433 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:47:07,433 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 4, 1, 1] [2024-12-02 13:47:07,442 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 13:47:07,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-12-02 13:47:07,634 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 47 more)] === [2024-12-02 13:47:07,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:47:07,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1700893129, now seen corresponding path program 2 times [2024-12-02 13:47:07,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:47:07,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742987716] [2024-12-02 13:47:07,635 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 13:47:07,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:47:07,697 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 13:47:07,697 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:47:08,571 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:47:08,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:47:08,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742987716] [2024-12-02 13:47:08,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742987716] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:47:08,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [664525872] [2024-12-02 13:47:08,572 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 13:47:08,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:47:08,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:47:08,573 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:47:08,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 13:47:08,734 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 13:47:08,735 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:47:08,737 INFO L256 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-12-02 13:47:08,739 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:47:08,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:47:08,778 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 9 [2024-12-02 13:47:08,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:47:08,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 9 [2024-12-02 13:47:08,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:47:08,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 9 [2024-12-02 13:47:09,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:47:09,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 9 [2024-12-02 13:47:09,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:47:09,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 9 [2024-12-02 13:47:09,132 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:47:09,132 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:47:09,258 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:47:09,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 61 [2024-12-02 13:47:09,408 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:47:09,408 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 61 [2024-12-02 13:47:09,572 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:47:09,572 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 61 [2024-12-02 13:47:09,735 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:47:09,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 61 [2024-12-02 13:47:09,873 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:47:09,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [664525872] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:47:09,873 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:47:09,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 31 [2024-12-02 13:47:09,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361156545] [2024-12-02 13:47:09,874 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:47:09,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-12-02 13:47:09,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:47:09,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-12-02 13:47:09,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=858, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 13:47:16,089 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 75 [2024-12-02 13:47:16,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 77 transitions, 350 flow. Second operand has 33 states, 33 states have (on average 35.45454545454545) internal successors, (1170), 33 states have internal predecessors, (1170), 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) [2024-12-02 13:47:16,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:47:16,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 75 [2024-12-02 13:47:16,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:47:17,747 INFO L124 PetriNetUnfolderBase]: 806/2516 cut-off events. [2024-12-02 13:47:17,747 INFO L125 PetriNetUnfolderBase]: For 796/796 co-relation queries the response was YES. [2024-12-02 13:47:17,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4960 conditions, 2516 events. 806/2516 cut-off events. For 796/796 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 14581 event pairs, 0 based on Foata normal form. 6/2127 useless extension candidates. Maximal degree in co-relation 4937. Up to 855 conditions per place. [2024-12-02 13:47:17,762 INFO L140 encePairwiseOnDemand]: 67/75 looper letters, 93 selfloop transitions, 26 changer transitions 0/149 dead transitions. [2024-12-02 13:47:17,762 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 149 transitions, 930 flow [2024-12-02 13:47:17,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 13:47:17,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-12-02 13:47:17,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 596 transitions. [2024-12-02 13:47:17,765 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5676190476190476 [2024-12-02 13:47:17,765 INFO L175 Difference]: Start difference. First operand has 90 places, 77 transitions, 350 flow. Second operand 14 states and 596 transitions. [2024-12-02 13:47:17,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 149 transitions, 930 flow [2024-12-02 13:47:17,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 149 transitions, 912 flow, removed 5 selfloop flow, removed 1 redundant places. [2024-12-02 13:47:17,773 INFO L231 Difference]: Finished difference. Result has 110 places, 88 transitions, 525 flow [2024-12-02 13:47:17,773 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=525, PETRI_PLACES=110, PETRI_TRANSITIONS=88} [2024-12-02 13:47:17,773 INFO L279 CegarLoopForPetriNet]: 75 programPoint places, 35 predicate places. [2024-12-02 13:47:17,773 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 88 transitions, 525 flow [2024-12-02 13:47:17,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 35.45454545454545) internal successors, (1170), 33 states have internal predecessors, (1170), 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) [2024-12-02 13:47:17,774 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:47:17,774 INFO L206 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:47:17,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-12-02 13:47:17,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:47:17,975 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 47 more)] === [2024-12-02 13:47:17,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:47:17,975 INFO L85 PathProgramCache]: Analyzing trace with hash -564066663, now seen corresponding path program 2 times [2024-12-02 13:47:17,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:47:17,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500488269] [2024-12-02 13:47:17,975 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 13:47:17,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:47:18,001 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 13:47:18,001 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:47:18,033 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-12-02 13:47:18,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:47:18,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500488269] [2024-12-02 13:47:18,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500488269] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:47:18,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:47:18,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 13:47:18,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730329298] [2024-12-02 13:47:18,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:47:18,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:47:18,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:47:18,035 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:47:18,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:47:18,079 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 75 [2024-12-02 13:47:18,079 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 88 transitions, 525 flow. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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) [2024-12-02 13:47:18,079 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:47:18,079 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 75 [2024-12-02 13:47:18,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:47:18,419 INFO L124 PetriNetUnfolderBase]: 685/2488 cut-off events. [2024-12-02 13:47:18,419 INFO L125 PetriNetUnfolderBase]: For 1467/1467 co-relation queries the response was YES. [2024-12-02 13:47:18,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4897 conditions, 2488 events. 685/2488 cut-off events. For 1467/1467 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 15214 event pairs, 504 based on Foata normal form. 68/2129 useless extension candidates. Maximal degree in co-relation 4865. Up to 1260 conditions per place. [2024-12-02 13:47:18,428 INFO L140 encePairwiseOnDemand]: 71/75 looper letters, 75 selfloop transitions, 2 changer transitions 0/108 dead transitions. [2024-12-02 13:47:18,428 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 108 transitions, 831 flow [2024-12-02 13:47:18,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:47:18,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 13:47:18,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 176 transitions. [2024-12-02 13:47:18,429 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7822222222222223 [2024-12-02 13:47:18,429 INFO L175 Difference]: Start difference. First operand has 110 places, 88 transitions, 525 flow. Second operand 3 states and 176 transitions. [2024-12-02 13:47:18,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 108 transitions, 831 flow [2024-12-02 13:47:18,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 108 transitions, 781 flow, removed 12 selfloop flow, removed 5 redundant places. [2024-12-02 13:47:18,435 INFO L231 Difference]: Finished difference. Result has 105 places, 86 transitions, 482 flow [2024-12-02 13:47:18,435 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=482, PETRI_PLACES=105, PETRI_TRANSITIONS=86} [2024-12-02 13:47:18,436 INFO L279 CegarLoopForPetriNet]: 75 programPoint places, 30 predicate places. [2024-12-02 13:47:18,436 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 86 transitions, 482 flow [2024-12-02 13:47:18,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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) [2024-12-02 13:47:18,436 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:47:18,436 INFO L206 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:47:18,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 13:47:18,436 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 47 more)] === [2024-12-02 13:47:18,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:47:18,437 INFO L85 PathProgramCache]: Analyzing trace with hash -564066664, now seen corresponding path program 1 times [2024-12-02 13:47:18,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:47:18,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466094115] [2024-12-02 13:47:18,437 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:47:18,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:47:18,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:47:18,561 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-12-02 13:47:18,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:47:18,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466094115] [2024-12-02 13:47:18,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466094115] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:47:18,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:47:18,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 13:47:18,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665683189] [2024-12-02 13:47:18,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:47:18,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:47:18,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:47:18,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:47:18,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:47:18,600 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 75 [2024-12-02 13:47:18,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 86 transitions, 482 flow. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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) [2024-12-02 13:47:18,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:47:18,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 75 [2024-12-02 13:47:18,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:47:19,061 INFO L124 PetriNetUnfolderBase]: 752/2419 cut-off events. [2024-12-02 13:47:19,061 INFO L125 PetriNetUnfolderBase]: For 1435/1435 co-relation queries the response was YES. [2024-12-02 13:47:19,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5089 conditions, 2419 events. 752/2419 cut-off events. For 1435/1435 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 13964 event pairs, 504 based on Foata normal form. 68/2128 useless extension candidates. Maximal degree in co-relation 5057. Up to 1260 conditions per place. [2024-12-02 13:47:19,080 INFO L140 encePairwiseOnDemand]: 71/75 looper letters, 76 selfloop transitions, 2 changer transitions 0/106 dead transitions. [2024-12-02 13:47:19,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 106 transitions, 783 flow [2024-12-02 13:47:19,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:47:19,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 13:47:19,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 174 transitions. [2024-12-02 13:47:19,081 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7733333333333333 [2024-12-02 13:47:19,081 INFO L175 Difference]: Start difference. First operand has 105 places, 86 transitions, 482 flow. Second operand 3 states and 174 transitions. [2024-12-02 13:47:19,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 106 transitions, 783 flow [2024-12-02 13:47:19,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 106 transitions, 779 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 13:47:19,092 INFO L231 Difference]: Finished difference. Result has 103 places, 84 transitions, 478 flow [2024-12-02 13:47:19,092 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=474, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=478, PETRI_PLACES=103, PETRI_TRANSITIONS=84} [2024-12-02 13:47:19,093 INFO L279 CegarLoopForPetriNet]: 75 programPoint places, 28 predicate places. [2024-12-02 13:47:19,093 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 84 transitions, 478 flow [2024-12-02 13:47:19,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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) [2024-12-02 13:47:19,093 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:47:19,093 INFO L206 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:47:19,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 13:47:19,093 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 47 more)] === [2024-12-02 13:47:19,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:47:19,094 INFO L85 PathProgramCache]: Analyzing trace with hash -902168935, now seen corresponding path program 1 times [2024-12-02 13:47:19,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:47:19,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601686932] [2024-12-02 13:47:19,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:47:19,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:47:19,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:47:19,349 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:47:19,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:47:19,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601686932] [2024-12-02 13:47:19,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601686932] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:47:19,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482627163] [2024-12-02 13:47:19,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:47:19,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:47:19,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:47:19,352 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:47:19,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 13:47:19,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:47:19,575 INFO L256 TraceCheckSpWp]: Trace formula consists of 725 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 13:47:19,577 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:47:19,620 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:47:19,621 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:47:19,690 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:47:19,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [482627163] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:47:19,690 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:47:19,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 12 [2024-12-02 13:47:19,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734459798] [2024-12-02 13:47:19,690 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:47:19,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 13:47:19,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:47:19,691 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 13:47:19,691 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-12-02 13:47:19,730 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 75 [2024-12-02 13:47:19,731 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 84 transitions, 478 flow. Second operand has 13 states, 13 states have (on average 48.07692307692308) internal successors, (625), 13 states have internal predecessors, (625), 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) [2024-12-02 13:47:19,731 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:47:19,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 75 [2024-12-02 13:47:19,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:47:20,565 INFO L124 PetriNetUnfolderBase]: 1142/3757 cut-off events. [2024-12-02 13:47:20,565 INFO L125 PetriNetUnfolderBase]: For 2013/2013 co-relation queries the response was YES. [2024-12-02 13:47:20,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7421 conditions, 3757 events. 1142/3757 cut-off events. For 2013/2013 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 21514 event pairs, 27 based on Foata normal form. 44/3193 useless extension candidates. Maximal degree in co-relation 7389. Up to 235 conditions per place. [2024-12-02 13:47:20,583 INFO L140 encePairwiseOnDemand]: 67/75 looper letters, 234 selfloop transitions, 25 changer transitions 0/286 dead transitions. [2024-12-02 13:47:20,583 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 286 transitions, 1603 flow [2024-12-02 13:47:20,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 13:47:20,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-12-02 13:47:20,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 806 transitions. [2024-12-02 13:47:20,586 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8955555555555555 [2024-12-02 13:47:20,586 INFO L175 Difference]: Start difference. First operand has 103 places, 84 transitions, 478 flow. Second operand 12 states and 806 transitions. [2024-12-02 13:47:20,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 286 transitions, 1603 flow [2024-12-02 13:47:20,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 286 transitions, 1557 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-12-02 13:47:20,594 INFO L231 Difference]: Finished difference. Result has 117 places, 86 transitions, 592 flow [2024-12-02 13:47:20,594 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=592, PETRI_PLACES=117, PETRI_TRANSITIONS=86} [2024-12-02 13:47:20,594 INFO L279 CegarLoopForPetriNet]: 75 programPoint places, 42 predicate places. [2024-12-02 13:47:20,595 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 86 transitions, 592 flow [2024-12-02 13:47:20,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 48.07692307692308) internal successors, (625), 13 states have internal predecessors, (625), 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) [2024-12-02 13:47:20,595 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:47:20,595 INFO L206 CegarLoopForPetriNet]: trace histogram [11, 11, 11, 10, 1, 1] [2024-12-02 13:47:20,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 13:47:20,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:47:20,796 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 47 more)] === [2024-12-02 13:47:20,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:47:20,796 INFO L85 PathProgramCache]: Analyzing trace with hash -316697249, now seen corresponding path program 3 times [2024-12-02 13:47:20,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:47:20,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655723864] [2024-12-02 13:47:20,796 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 13:47:20,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:47:21,000 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-12-02 13:47:21,000 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:47:21,333 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 183 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:47:21,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:47:21,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655723864] [2024-12-02 13:47:21,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655723864] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:47:21,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184857588] [2024-12-02 13:47:21,333 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 13:47:21,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:47:21,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:47:21,335 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:47:21,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 13:47:57,896 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-12-02 13:47:57,897 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:47:57,914 INFO L256 TraceCheckSpWp]: Trace formula consists of 1016 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 13:47:57,917 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:47:57,961 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:47:57,961 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:47:57,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1184857588] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:47:57,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:47:57,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [12] total 13 [2024-12-02 13:47:57,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363734577] [2024-12-02 13:47:57,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:47:57,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 13:47:57,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:47:57,962 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 13:47:57,962 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2024-12-02 13:47:58,002 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 75 [2024-12-02 13:47:58,003 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 86 transitions, 592 flow. Second operand has 13 states, 13 states have (on average 47.53846153846154) internal successors, (618), 13 states have internal predecessors, (618), 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) [2024-12-02 13:47:58,003 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:47:58,003 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 75 [2024-12-02 13:47:58,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:47:58,944 INFO L124 PetriNetUnfolderBase]: 1131/3742 cut-off events. [2024-12-02 13:47:58,944 INFO L125 PetriNetUnfolderBase]: For 2240/2240 co-relation queries the response was YES. [2024-12-02 13:47:58,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7382 conditions, 3742 events. 1131/3742 cut-off events. For 2240/2240 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 21462 event pairs, 18 based on Foata normal form. 11/3145 useless extension candidates. Maximal degree in co-relation 7344. Up to 228 conditions per place. [2024-12-02 13:47:58,961 INFO L140 encePairwiseOnDemand]: 68/75 looper letters, 242 selfloop transitions, 23 changer transitions 1/292 dead transitions. [2024-12-02 13:47:58,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 292 transitions, 1639 flow [2024-12-02 13:47:58,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 13:47:58,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-12-02 13:47:58,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 853 transitions. [2024-12-02 13:47:58,964 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8748717948717949 [2024-12-02 13:47:58,964 INFO L175 Difference]: Start difference. First operand has 117 places, 86 transitions, 592 flow. Second operand 13 states and 853 transitions. [2024-12-02 13:47:58,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 292 transitions, 1639 flow [2024-12-02 13:47:58,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 292 transitions, 1537 flow, removed 0 selfloop flow, removed 15 redundant places. [2024-12-02 13:47:58,976 INFO L231 Difference]: Finished difference. Result has 113 places, 82 transitions, 503 flow [2024-12-02 13:47:58,976 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=503, PETRI_PLACES=113, PETRI_TRANSITIONS=82} [2024-12-02 13:47:58,977 INFO L279 CegarLoopForPetriNet]: 75 programPoint places, 38 predicate places. [2024-12-02 13:47:58,977 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 82 transitions, 503 flow [2024-12-02 13:47:58,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 47.53846153846154) internal successors, (618), 13 states have internal predecessors, (618), 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) [2024-12-02 13:47:58,977 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:47:58,977 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:47:58,997 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 13:47:59,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:47:59,178 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 47 more)] === [2024-12-02 13:47:59,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:47:59,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1526656297, now seen corresponding path program 2 times [2024-12-02 13:47:59,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:47:59,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197953607] [2024-12-02 13:47:59,178 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 13:47:59,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:47:59,243 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 13:47:59,243 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:47:59,690 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 144 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:47:59,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:47:59,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197953607] [2024-12-02 13:47:59,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197953607] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:47:59,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320264064] [2024-12-02 13:47:59,690 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 13:47:59,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:47:59,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:47:59,692 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:47:59,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 13:47:59,958 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 13:47:59,959 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:47:59,962 INFO L256 TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 13:47:59,965 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:48:00,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:48:00,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 16 treesize of output 11 [2024-12-02 13:48:00,134 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-12-02 13:48:00,134 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 [2024-12-02 13:48:00,157 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 180 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:48:00,157 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:48:00,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 52 treesize of output 48 [2024-12-02 13:48:00,329 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:48:00,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 64 [2024-12-02 13:48:00,648 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 180 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:48:00,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320264064] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:48:00,648 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:48:00,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 13] total 29 [2024-12-02 13:48:00,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130601238] [2024-12-02 13:48:00,648 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:48:00,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-12-02 13:48:00,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:48:00,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-12-02 13:48:00,650 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=674, Unknown=0, NotChecked=0, Total=930 [2024-12-02 13:48:01,981 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 75 [2024-12-02 13:48:01,982 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 82 transitions, 503 flow. Second operand has 31 states, 31 states have (on average 40.67741935483871) internal successors, (1261), 31 states have internal predecessors, (1261), 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) [2024-12-02 13:48:01,982 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:48:01,982 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 75 [2024-12-02 13:48:01,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:48:05,866 INFO L124 PetriNetUnfolderBase]: 2713/8822 cut-off events. [2024-12-02 13:48:05,866 INFO L125 PetriNetUnfolderBase]: For 4214/4214 co-relation queries the response was YES. [2024-12-02 13:48:05,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16600 conditions, 8822 events. 2713/8822 cut-off events. For 4214/4214 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 65656 event pairs, 98 based on Foata normal form. 114/7394 useless extension candidates. Maximal degree in co-relation 16571. Up to 342 conditions per place. [2024-12-02 13:48:05,895 INFO L140 encePairwiseOnDemand]: 63/75 looper letters, 627 selfloop transitions, 120 changer transitions 2/775 dead transitions. [2024-12-02 13:48:05,896 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 775 transitions, 3931 flow [2024-12-02 13:48:05,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-12-02 13:48:05,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2024-12-02 13:48:05,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 2530 transitions. [2024-12-02 13:48:05,900 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7333333333333333 [2024-12-02 13:48:05,900 INFO L175 Difference]: Start difference. First operand has 113 places, 82 transitions, 503 flow. Second operand 46 states and 2530 transitions. [2024-12-02 13:48:05,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 775 transitions, 3931 flow [2024-12-02 13:48:05,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 775 transitions, 3813 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-12-02 13:48:05,912 INFO L231 Difference]: Finished difference. Result has 190 places, 179 transitions, 1487 flow [2024-12-02 13:48:05,913 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=46, PETRI_FLOW=1487, PETRI_PLACES=190, PETRI_TRANSITIONS=179} [2024-12-02 13:48:05,913 INFO L279 CegarLoopForPetriNet]: 75 programPoint places, 115 predicate places. [2024-12-02 13:48:05,913 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 179 transitions, 1487 flow [2024-12-02 13:48:05,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 40.67741935483871) internal successors, (1261), 31 states have internal predecessors, (1261), 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) [2024-12-02 13:48:05,914 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:48:05,914 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:48:05,921 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 13:48:06,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-12-02 13:48:06,115 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 47 more)] === [2024-12-02 13:48:06,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:48:06,115 INFO L85 PathProgramCache]: Analyzing trace with hash -253111873, now seen corresponding path program 1 times [2024-12-02 13:48:06,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:48:06,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725368737] [2024-12-02 13:48:06,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:48:06,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:48:06,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:48:06,826 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 144 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:48:06,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:48:06,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725368737] [2024-12-02 13:48:06,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725368737] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:48:06,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982438069] [2024-12-02 13:48:06,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:48:06,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:48:06,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:48:06,828 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:48:06,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 13:48:07,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:48:07,110 INFO L256 TraceCheckSpWp]: Trace formula consists of 1037 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 13:48:07,112 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:48:07,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:48:07,254 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 16 treesize of output 11 [2024-12-02 13:48:07,260 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-12-02 13:48:07,260 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 [2024-12-02 13:48:07,275 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 180 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:48:07,275 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:48:07,423 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 52 treesize of output 48 [2024-12-02 13:48:07,438 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:48:07,438 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 64 [2024-12-02 13:48:07,728 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 180 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:48:07,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982438069] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:48:07,728 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:48:07,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 13] total 27 [2024-12-02 13:48:07,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102552420] [2024-12-02 13:48:07,728 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:48:07,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-12-02 13:48:07,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:48:07,730 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-12-02 13:48:07,730 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=278, Invalid=534, Unknown=0, NotChecked=0, Total=812 [2024-12-02 13:48:08,915 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 75 [2024-12-02 13:48:08,916 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 179 transitions, 1487 flow. Second operand has 29 states, 29 states have (on average 36.758620689655174) internal successors, (1066), 29 states have internal predecessors, (1066), 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) [2024-12-02 13:48:08,916 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:48:08,917 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 75 [2024-12-02 13:48:08,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:48:11,745 INFO L124 PetriNetUnfolderBase]: 2784/8809 cut-off events. [2024-12-02 13:48:11,745 INFO L125 PetriNetUnfolderBase]: For 72229/72340 co-relation queries the response was YES. [2024-12-02 13:48:11,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29330 conditions, 8809 events. 2784/8809 cut-off events. For 72229/72340 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 64979 event pairs, 318 based on Foata normal form. 46/7398 useless extension candidates. Maximal degree in co-relation 29257. Up to 671 conditions per place. [2024-12-02 13:48:11,819 INFO L140 encePairwiseOnDemand]: 64/75 looper letters, 425 selfloop transitions, 83 changer transitions 1/535 dead transitions. [2024-12-02 13:48:11,819 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 535 transitions, 5373 flow [2024-12-02 13:48:11,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 13:48:11,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-12-02 13:48:11,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1104 transitions. [2024-12-02 13:48:11,822 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6690909090909091 [2024-12-02 13:48:11,822 INFO L175 Difference]: Start difference. First operand has 190 places, 179 transitions, 1487 flow. Second operand 22 states and 1104 transitions. [2024-12-02 13:48:11,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 535 transitions, 5373 flow [2024-12-02 13:48:11,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 535 transitions, 5282 flow, removed 0 selfloop flow, removed 10 redundant places. [2024-12-02 13:48:11,939 INFO L231 Difference]: Finished difference. Result has 203 places, 202 transitions, 1700 flow [2024-12-02 13:48:11,940 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=1396, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1700, PETRI_PLACES=203, PETRI_TRANSITIONS=202} [2024-12-02 13:48:11,940 INFO L279 CegarLoopForPetriNet]: 75 programPoint places, 128 predicate places. [2024-12-02 13:48:11,940 INFO L471 AbstractCegarLoop]: Abstraction has has 203 places, 202 transitions, 1700 flow [2024-12-02 13:48:11,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 36.758620689655174) internal successors, (1066), 29 states have internal predecessors, (1066), 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) [2024-12-02 13:48:11,941 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:48:11,941 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:48:11,950 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 13:48:12,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-12-02 13:48:12,141 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 47 more)] === [2024-12-02 13:48:12,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:48:12,142 INFO L85 PathProgramCache]: Analyzing trace with hash 743467069, now seen corresponding path program 1 times [2024-12-02 13:48:12,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:48:12,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506316118] [2024-12-02 13:48:12,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:48:12,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:48:12,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:48:15,856 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 101 proven. 89 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:48:15,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:48:15,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506316118] [2024-12-02 13:48:15,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506316118] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:48:15,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2049551900] [2024-12-02 13:48:15,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:48:15,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:48:15,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:48:15,858 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:48:15,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39c5df6-d3b3-49ac-bfd4-b04df9b005a1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 13:48:16,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:48:16,197 INFO L256 TraceCheckSpWp]: Trace formula consists of 1061 conjuncts, 81 conjuncts are in the unsatisfiable core [2024-12-02 13:48:16,201 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:48:16,207 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 [2024-12-02 13:48:16,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 13:48:16,238 INFO L349 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2024-12-02 13:48:16,238 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 21 treesize of output 29 [2024-12-02 13:48:16,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:48:16,296 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 37 treesize of output 17 [2024-12-02 13:48:16,357 INFO L349 Elim1Store]: treesize reduction 52, result has 34.2 percent of original size [2024-12-02 13:48:16,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 28 treesize of output 36 [2024-12-02 13:48:16,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:48:16,414 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 37 treesize of output 17 [2024-12-02 13:48:16,480 INFO L349 Elim1Store]: treesize reduction 52, result has 34.2 percent of original size [2024-12-02 13:48:16,480 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 28 treesize of output 36 [2024-12-02 13:48:16,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:48:16,537 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 37 treesize of output 17 [2024-12-02 13:48:16,589 INFO L349 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2024-12-02 13:48:16,589 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 26 [2024-12-02 13:48:16,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:48:16,660 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 37 treesize of output 17 [2024-12-02 13:48:16,721 INFO L349 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2024-12-02 13:48:16,721 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 26 [2024-12-02 13:48:16,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:48:16,784 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 37 treesize of output 17 [2024-12-02 13:48:16,836 INFO L349 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2024-12-02 13:48:16,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 26 [2024-12-02 13:48:16,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:48:16,904 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 37 treesize of output 17 [2024-12-02 13:48:16,962 INFO L349 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2024-12-02 13:48:16,962 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 26 [2024-12-02 13:48:17,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:48:17,025 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 37 treesize of output 17 [2024-12-02 13:48:17,086 INFO L349 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2024-12-02 13:48:17,086 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 26 [2024-12-02 13:48:17,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:48:17,144 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 37 treesize of output 17 [2024-12-02 13:48:17,195 INFO L349 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2024-12-02 13:48:17,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 26 [2024-12-02 13:48:17,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:48:17,291 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 37 treesize of output 17 [2024-12-02 13:48:17,420 INFO L349 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2024-12-02 13:48:17,421 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 26 [2024-12-02 13:48:17,487 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 25 treesize of output 13 [2024-12-02 13:48:17,522 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 144 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:48:17,522 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:48:29,707 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~ret37#1.base_86| Int) (|v_ULTIMATE.start_main_~j~0#1_202| Int) (|ULTIMATE.start_main_#t~ret37#1.base| Int)) (or (= (select |c_#valid| (select (store (store (select |c_#memory_$Pointer$#1.base| |c_~#slot~0.base|) (+ |c_~#slot~0.offset| (* |c_ULTIMATE.start_main_~j~0#1| 4)) |ULTIMATE.start_main_#t~ret37#1.base|) (+ |c_~#slot~0.offset| (* |v_ULTIMATE.start_main_~j~0#1_202| 4)) |v_ULTIMATE.start_main_#t~ret37#1.base_86|) |c_~#slot~0.offset|)) 1) (< |v_ULTIMATE.start_main_~j~0#1_202| (+ |c_ULTIMATE.start_main_~j~0#1| 1)))) is different from false [2024-12-02 13:48:35,626 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~ret37#1.base_86| Int) (|v_ULTIMATE.start_main_#t~ret37#1.base_88| Int) (|v_ULTIMATE.start_main_~j~0#1_203| Int) (|v_ULTIMATE.start_new_~p~0#1.base_113| Int) (|v_ULTIMATE.start_main_~j~0#1_202| Int) (|ULTIMATE.start_main_#t~ret37#1.base| Int)) (or (= (select (store |c_#valid| |v_ULTIMATE.start_new_~p~0#1.base_113| 1) (select (store (store (store (select |c_#memory_$Pointer$#1.base| |c_~#slot~0.base|) (+ |c_~#slot~0.offset| (* |c_ULTIMATE.start_main_~j~0#1| 4)) |ULTIMATE.start_main_#t~ret37#1.base|) (+ |c_~#slot~0.offset| (* |v_ULTIMATE.start_main_~j~0#1_203| 4)) |v_ULTIMATE.start_main_#t~ret37#1.base_88|) (+ |c_~#slot~0.offset| (* |v_ULTIMATE.start_main_~j~0#1_202| 4)) |v_ULTIMATE.start_main_#t~ret37#1.base_86|) |c_~#slot~0.offset|)) 1) (< |v_ULTIMATE.start_main_~j~0#1_203| (+ |c_ULTIMATE.start_main_~j~0#1| 1)) (< |v_ULTIMATE.start_main_~j~0#1_202| (+ |v_ULTIMATE.start_main_~j~0#1_203| 1)))) is different from false [2024-12-02 13:48:37,784 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~ret37#1.base_86| Int) (|v_ULTIMATE.start_main_#t~ret37#1.base_88| Int) (|v_ULTIMATE.start_new_~p~0#1.base_114| Int) (|v_ULTIMATE.start_main_~j~0#1_203| Int) (|v_ULTIMATE.start_new_~p~0#1.base_113| Int) (|v_ULTIMATE.start_main_~j~0#1_202| Int) (|ULTIMATE.start_main_#t~ret37#1.base| Int)) (or (= (select (store (store |c_#valid| |v_ULTIMATE.start_new_~p~0#1.base_114| 1) |v_ULTIMATE.start_new_~p~0#1.base_113| 1) (select (store (store (store (select |c_#memory_$Pointer$#1.base| |c_~#slot~0.base|) (+ |c_~#slot~0.offset| (* |c_ULTIMATE.start_main_~j~0#1| 4)) |ULTIMATE.start_main_#t~ret37#1.base|) (+ |c_~#slot~0.offset| (* |v_ULTIMATE.start_main_~j~0#1_203| 4)) |v_ULTIMATE.start_main_#t~ret37#1.base_88|) (+ |c_~#slot~0.offset| (* |v_ULTIMATE.start_main_~j~0#1_202| 4)) |v_ULTIMATE.start_main_#t~ret37#1.base_86|) |c_~#slot~0.offset|)) 1) (< |v_ULTIMATE.start_main_~j~0#1_203| (+ |c_ULTIMATE.start_main_~j~0#1| 1)) (< |v_ULTIMATE.start_main_~j~0#1_202| (+ |v_ULTIMATE.start_main_~j~0#1_203| 1)))) is different from false [2024-12-02 13:48:39,851 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~ret37#1.base_86| Int) (|v_ULTIMATE.start_main_#t~ret37#1.base_88| Int) (|v_ULTIMATE.start_new_~p~0#1.base_114| Int) (|v_ULTIMATE.start_main_~j~0#1_203| Int) (|v_ULTIMATE.start_new_~p~0#1.base_113| Int) (|v_ULTIMATE.start_main_~j~0#1_202| Int) (|v_ULTIMATE.start_main_~j~0#1_204| Int) (|v_ULTIMATE.start_main_#t~ret37#1.base_90| Int) (|ULTIMATE.start_main_#t~ret37#1.base| Int)) (or (= (select (store (store |c_#valid| |v_ULTIMATE.start_new_~p~0#1.base_114| 1) |v_ULTIMATE.start_new_~p~0#1.base_113| 1) (select (store (store (store (store (select |c_#memory_$Pointer$#1.base| |c_~#slot~0.base|) (+ |c_~#slot~0.offset| (* |c_ULTIMATE.start_main_~j~0#1| 4)) |ULTIMATE.start_main_#t~ret37#1.base|) (+ (* |v_ULTIMATE.start_main_~j~0#1_204| 4) |c_~#slot~0.offset|) |v_ULTIMATE.start_main_#t~ret37#1.base_90|) (+ |c_~#slot~0.offset| (* |v_ULTIMATE.start_main_~j~0#1_203| 4)) |v_ULTIMATE.start_main_#t~ret37#1.base_88|) (+ |c_~#slot~0.offset| (* |v_ULTIMATE.start_main_~j~0#1_202| 4)) |v_ULTIMATE.start_main_#t~ret37#1.base_86|) |c_~#slot~0.offset|)) 1) (< |v_ULTIMATE.start_main_~j~0#1_203| (+ |v_ULTIMATE.start_main_~j~0#1_204| 1)) (< |v_ULTIMATE.start_main_~j~0#1_204| (+ |c_ULTIMATE.start_main_~j~0#1| 1)) (< |v_ULTIMATE.start_main_~j~0#1_202| (+ |v_ULTIMATE.start_main_~j~0#1_203| 1)))) is different from false [2024-12-02 13:48:41,940 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~ret37#1.base_86| Int) (|v_ULTIMATE.start_main_#t~ret37#1.base_88| Int) (|v_ULTIMATE.start_new_~p~0#1.base_115| Int) (|v_ULTIMATE.start_new_~p~0#1.base_114| Int) (|v_ULTIMATE.start_main_~j~0#1_203| Int) (|v_ULTIMATE.start_new_~p~0#1.base_113| Int) (|v_ULTIMATE.start_main_~j~0#1_202| Int) (|v_ULTIMATE.start_main_~j~0#1_204| Int) (|v_ULTIMATE.start_main_#t~ret37#1.base_90| Int) (|ULTIMATE.start_main_#t~ret37#1.base| Int)) (or (= (select (store (store (store |c_#valid| |v_ULTIMATE.start_new_~p~0#1.base_115| 1) |v_ULTIMATE.start_new_~p~0#1.base_114| 1) |v_ULTIMATE.start_new_~p~0#1.base_113| 1) (select (store (store (store (store (select |c_#memory_$Pointer$#1.base| |c_~#slot~0.base|) (+ |c_~#slot~0.offset| (* |c_ULTIMATE.start_main_~j~0#1| 4)) |ULTIMATE.start_main_#t~ret37#1.base|) (+ (* |v_ULTIMATE.start_main_~j~0#1_204| 4) |c_~#slot~0.offset|) |v_ULTIMATE.start_main_#t~ret37#1.base_90|) (+ |c_~#slot~0.offset| (* |v_ULTIMATE.start_main_~j~0#1_203| 4)) |v_ULTIMATE.start_main_#t~ret37#1.base_88|) (+ |c_~#slot~0.offset| (* |v_ULTIMATE.start_main_~j~0#1_202| 4)) |v_ULTIMATE.start_main_#t~ret37#1.base_86|) |c_~#slot~0.offset|)) 1) (< |v_ULTIMATE.start_main_~j~0#1_203| (+ |v_ULTIMATE.start_main_~j~0#1_204| 1)) (< |v_ULTIMATE.start_main_~j~0#1_204| (+ |c_ULTIMATE.start_main_~j~0#1| 1)) (< |v_ULTIMATE.start_main_~j~0#1_202| (+ |v_ULTIMATE.start_main_~j~0#1_203| 1)))) is different from false [2024-12-02 13:48:44,093 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~ret37#1.base_86| Int) (|v_ULTIMATE.start_main_#t~ret37#1.base_88| Int) (|v_ULTIMATE.start_new_~p~0#1.base_115| Int) (|v_ULTIMATE.start_new_~p~0#1.base_114| Int) (|v_ULTIMATE.start_main_~j~0#1_203| Int) (|v_ULTIMATE.start_new_~p~0#1.base_113| Int) (|v_ULTIMATE.start_main_~j~0#1_202| Int) (|v_ULTIMATE.start_main_~j~0#1_205| Int) (|v_ULTIMATE.start_main_~j~0#1_204| Int) (|v_ULTIMATE.start_main_#t~ret37#1.base_90| Int) (|ULTIMATE.start_main_#t~ret37#1.base| Int) (|v_ULTIMATE.start_main_#t~ret37#1.base_92| Int)) (or (= 1 (select (store (store (store |c_#valid| |v_ULTIMATE.start_new_~p~0#1.base_115| 1) |v_ULTIMATE.start_new_~p~0#1.base_114| 1) |v_ULTIMATE.start_new_~p~0#1.base_113| 1) (select (store (store (store (store (store (select |c_#memory_$Pointer$#1.base| |c_~#slot~0.base|) (+ |c_~#slot~0.offset| (* |c_ULTIMATE.start_main_~j~0#1| 4)) |ULTIMATE.start_main_#t~ret37#1.base|) (+ (* |v_ULTIMATE.start_main_~j~0#1_205| 4) |c_~#slot~0.offset|) |v_ULTIMATE.start_main_#t~ret37#1.base_92|) (+ (* |v_ULTIMATE.start_main_~j~0#1_204| 4) |c_~#slot~0.offset|) |v_ULTIMATE.start_main_#t~ret37#1.base_90|) (+ |c_~#slot~0.offset| (* |v_ULTIMATE.start_main_~j~0#1_203| 4)) |v_ULTIMATE.start_main_#t~ret37#1.base_88|) (+ |c_~#slot~0.offset| (* |v_ULTIMATE.start_main_~j~0#1_202| 4)) |v_ULTIMATE.start_main_#t~ret37#1.base_86|) |c_~#slot~0.offset|))) (< |v_ULTIMATE.start_main_~j~0#1_203| (+ |v_ULTIMATE.start_main_~j~0#1_204| 1)) (< |v_ULTIMATE.start_main_~j~0#1_202| (+ |v_ULTIMATE.start_main_~j~0#1_203| 1)) (< |v_ULTIMATE.start_main_~j~0#1_205| (+ |c_ULTIMATE.start_main_~j~0#1| 1)) (< |v_ULTIMATE.start_main_~j~0#1_204| (+ |v_ULTIMATE.start_main_~j~0#1_205| 1)))) is different from false [2024-12-02 13:48:46,359 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~ret37#1.base_86| Int) (|v_ULTIMATE.start_main_#t~ret37#1.base_88| Int) (|v_ULTIMATE.start_main_#t~ret37#1.base_90| Int) (|ULTIMATE.start_main_#t~ret37#1.base| Int) (|v_ULTIMATE.start_main_#t~ret37#1.base_92| Int) (|v_ULTIMATE.start_new_~p~0#1.base_116| Int) (|v_ULTIMATE.start_new_~p~0#1.base_115| Int) (|v_ULTIMATE.start_new_~p~0#1.base_114| Int) (|v_ULTIMATE.start_main_~j~0#1_203| Int) (|v_ULTIMATE.start_new_~p~0#1.base_113| Int) (|v_ULTIMATE.start_main_~j~0#1_202| Int) (|v_ULTIMATE.start_main_~j~0#1_205| Int) (|v_ULTIMATE.start_main_~j~0#1_204| Int)) (or (< |v_ULTIMATE.start_main_~j~0#1_203| (+ |v_ULTIMATE.start_main_~j~0#1_204| 1)) (< |v_ULTIMATE.start_main_~j~0#1_202| (+ |v_ULTIMATE.start_main_~j~0#1_203| 1)) (< |v_ULTIMATE.start_main_~j~0#1_205| (+ |c_ULTIMATE.start_main_~j~0#1| 1)) (< |v_ULTIMATE.start_main_~j~0#1_204| (+ |v_ULTIMATE.start_main_~j~0#1_205| 1)) (= (select (store (store (store (store |c_#valid| |v_ULTIMATE.start_new_~p~0#1.base_116| 1) |v_ULTIMATE.start_new_~p~0#1.base_115| 1) |v_ULTIMATE.start_new_~p~0#1.base_114| 1) |v_ULTIMATE.start_new_~p~0#1.base_113| 1) (select (store (store (store (store (store (select |c_#memory_$Pointer$#1.base| |c_~#slot~0.base|) (+ |c_~#slot~0.offset| (* |c_ULTIMATE.start_main_~j~0#1| 4)) |ULTIMATE.start_main_#t~ret37#1.base|) (+ (* |v_ULTIMATE.start_main_~j~0#1_205| 4) |c_~#slot~0.offset|) |v_ULTIMATE.start_main_#t~ret37#1.base_92|) (+ (* |v_ULTIMATE.start_main_~j~0#1_204| 4) |c_~#slot~0.offset|) |v_ULTIMATE.start_main_#t~ret37#1.base_90|) (+ |c_~#slot~0.offset| (* |v_ULTIMATE.start_main_~j~0#1_203| 4)) |v_ULTIMATE.start_main_#t~ret37#1.base_88|) (+ |c_~#slot~0.offset| (* |v_ULTIMATE.start_main_~j~0#1_202| 4)) |v_ULTIMATE.start_main_#t~ret37#1.base_86|) |c_~#slot~0.offset|)) 1))) is different from false [2024-12-02 13:48:48,807 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~ret37#1.base_86| Int) (|v_ULTIMATE.start_main_#t~ret37#1.base_88| Int) (|v_ULTIMATE.start_main_#t~ret37#1.base_90| Int) (|ULTIMATE.start_main_#t~ret37#1.base| Int) (|v_ULTIMATE.start_main_#t~ret37#1.base_92| Int) (|v_ULTIMATE.start_main_#t~ret37#1.base_94| Int) (|v_ULTIMATE.start_new_~p~0#1.base_116| Int) (|v_ULTIMATE.start_new_~p~0#1.base_115| Int) (|v_ULTIMATE.start_new_~p~0#1.base_114| Int) (|v_ULTIMATE.start_main_~j~0#1_203| Int) (|v_ULTIMATE.start_new_~p~0#1.base_113| Int) (|v_ULTIMATE.start_main_~j~0#1_202| Int) (|v_ULTIMATE.start_main_~j~0#1_205| Int) (|v_ULTIMATE.start_main_~j~0#1_204| Int) (|v_ULTIMATE.start_main_~j~0#1_206| Int)) (or (= (select (store (store (store (store |c_#valid| |v_ULTIMATE.start_new_~p~0#1.base_116| 1) |v_ULTIMATE.start_new_~p~0#1.base_115| 1) |v_ULTIMATE.start_new_~p~0#1.base_114| 1) |v_ULTIMATE.start_new_~p~0#1.base_113| 1) (select (store (store (store (store (store (store (select |c_#memory_$Pointer$#1.base| |c_~#slot~0.base|) (+ |c_~#slot~0.offset| (* |c_ULTIMATE.start_main_~j~0#1| 4)) |ULTIMATE.start_main_#t~ret37#1.base|) (+ |c_~#slot~0.offset| (* |v_ULTIMATE.start_main_~j~0#1_206| 4)) |v_ULTIMATE.start_main_#t~ret37#1.base_94|) (+ (* |v_ULTIMATE.start_main_~j~0#1_205| 4) |c_~#slot~0.offset|) |v_ULTIMATE.start_main_#t~ret37#1.base_92|) (+ (* |v_ULTIMATE.start_main_~j~0#1_204| 4) |c_~#slot~0.offset|) |v_ULTIMATE.start_main_#t~ret37#1.base_90|) (+ |c_~#slot~0.offset| (* |v_ULTIMATE.start_main_~j~0#1_203| 4)) |v_ULTIMATE.start_main_#t~ret37#1.base_88|) (+ |c_~#slot~0.offset| (* |v_ULTIMATE.start_main_~j~0#1_202| 4)) |v_ULTIMATE.start_main_#t~ret37#1.base_86|) |c_~#slot~0.offset|)) 1) (< |v_ULTIMATE.start_main_~j~0#1_205| (+ |v_ULTIMATE.start_main_~j~0#1_206| 1)) (< |v_ULTIMATE.start_main_~j~0#1_203| (+ |v_ULTIMATE.start_main_~j~0#1_204| 1)) (< |v_ULTIMATE.start_main_~j~0#1_202| (+ |v_ULTIMATE.start_main_~j~0#1_203| 1)) (< |v_ULTIMATE.start_main_~j~0#1_206| (+ |c_ULTIMATE.start_main_~j~0#1| 1)) (< |v_ULTIMATE.start_main_~j~0#1_204| (+ |v_ULTIMATE.start_main_~j~0#1_205| 1)))) is different from false [2024-12-02 13:48:51,249 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~ret37#1.base_86| Int) (|v_ULTIMATE.start_main_#t~ret37#1.base_88| Int) (|v_ULTIMATE.start_main_#t~ret37#1.base_90| Int) (|ULTIMATE.start_main_#t~ret37#1.base| Int) (|v_ULTIMATE.start_main_#t~ret37#1.base_92| Int) (|v_ULTIMATE.start_main_#t~ret37#1.base_94| Int) (|v_ULTIMATE.start_new_~p~0#1.base_117| Int) (|v_ULTIMATE.start_new_~p~0#1.base_116| Int) (|v_ULTIMATE.start_new_~p~0#1.base_115| Int) (|v_ULTIMATE.start_new_~p~0#1.base_114| Int) (|v_ULTIMATE.start_main_~j~0#1_203| Int) (|v_ULTIMATE.start_new_~p~0#1.base_113| Int) (|v_ULTIMATE.start_main_~j~0#1_202| Int) (|v_ULTIMATE.start_main_~j~0#1_205| Int) (|v_ULTIMATE.start_main_~j~0#1_204| Int) (|v_ULTIMATE.start_main_~j~0#1_206| Int)) (or (= (select (store (store (store (store (store |c_#valid| |v_ULTIMATE.start_new_~p~0#1.base_117| 1) |v_ULTIMATE.start_new_~p~0#1.base_116| 1) |v_ULTIMATE.start_new_~p~0#1.base_115| 1) |v_ULTIMATE.start_new_~p~0#1.base_114| 1) |v_ULTIMATE.start_new_~p~0#1.base_113| 1) (select (store (store (store (store (store (store (select |c_#memory_$Pointer$#1.base| |c_~#slot~0.base|) (+ |c_~#slot~0.offset| (* |c_ULTIMATE.start_main_~j~0#1| 4)) |ULTIMATE.start_main_#t~ret37#1.base|) (+ |c_~#slot~0.offset| (* |v_ULTIMATE.start_main_~j~0#1_206| 4)) |v_ULTIMATE.start_main_#t~ret37#1.base_94|) (+ (* |v_ULTIMATE.start_main_~j~0#1_205| 4) |c_~#slot~0.offset|) |v_ULTIMATE.start_main_#t~ret37#1.base_92|) (+ (* |v_ULTIMATE.start_main_~j~0#1_204| 4) |c_~#slot~0.offset|) |v_ULTIMATE.start_main_#t~ret37#1.base_90|) (+ |c_~#slot~0.offset| (* |v_ULTIMATE.start_main_~j~0#1_203| 4)) |v_ULTIMATE.start_main_#t~ret37#1.base_88|) (+ |c_~#slot~0.offset| (* |v_ULTIMATE.start_main_~j~0#1_202| 4)) |v_ULTIMATE.start_main_#t~ret37#1.base_86|) |c_~#slot~0.offset|)) 1) (< |v_ULTIMATE.start_main_~j~0#1_205| (+ |v_ULTIMATE.start_main_~j~0#1_206| 1)) (< |v_ULTIMATE.start_main_~j~0#1_203| (+ |v_ULTIMATE.start_main_~j~0#1_204| 1)) (< |v_ULTIMATE.start_main_~j~0#1_202| (+ |v_ULTIMATE.start_main_~j~0#1_203| 1)) (< |v_ULTIMATE.start_main_~j~0#1_206| (+ |c_ULTIMATE.start_main_~j~0#1| 1)) (< |v_ULTIMATE.start_main_~j~0#1_204| (+ |v_ULTIMATE.start_main_~j~0#1_205| 1)))) is different from false [2024-12-02 13:48:54,225 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~ret37#1.base_86| Int) (|v_ULTIMATE.start_main_#t~ret37#1.base_96| Int) (|v_ULTIMATE.start_main_#t~ret37#1.base_88| Int) (|v_ULTIMATE.start_main_#t~ret37#1.base_90| Int) (|ULTIMATE.start_main_#t~ret37#1.base| Int) (|v_ULTIMATE.start_main_#t~ret37#1.base_92| Int) (|v_ULTIMATE.start_main_#t~ret37#1.base_94| Int) (|v_ULTIMATE.start_new_~p~0#1.base_117| Int) (|v_ULTIMATE.start_new_~p~0#1.base_116| Int) (|v_ULTIMATE.start_new_~p~0#1.base_115| Int) (|v_ULTIMATE.start_new_~p~0#1.base_114| Int) (|v_ULTIMATE.start_main_~j~0#1_203| Int) (|v_ULTIMATE.start_new_~p~0#1.base_113| Int) (|v_ULTIMATE.start_main_~j~0#1_202| Int) (|v_ULTIMATE.start_main_~j~0#1_205| Int) (|v_ULTIMATE.start_main_~j~0#1_204| Int) (|v_ULTIMATE.start_main_~j~0#1_207| Int) (|v_ULTIMATE.start_main_~j~0#1_206| Int)) (or (< |v_ULTIMATE.start_main_~j~0#1_207| (+ |c_ULTIMATE.start_main_~j~0#1| 1)) (< |v_ULTIMATE.start_main_~j~0#1_206| (+ |v_ULTIMATE.start_main_~j~0#1_207| 1)) (< |v_ULTIMATE.start_main_~j~0#1_205| (+ |v_ULTIMATE.start_main_~j~0#1_206| 1)) (< |v_ULTIMATE.start_main_~j~0#1_203| (+ |v_ULTIMATE.start_main_~j~0#1_204| 1)) (< |v_ULTIMATE.start_main_~j~0#1_202| (+ |v_ULTIMATE.start_main_~j~0#1_203| 1)) (= (select (store (store (store (store (store |c_#valid| |v_ULTIMATE.start_new_~p~0#1.base_117| 1) |v_ULTIMATE.start_new_~p~0#1.base_116| 1) |v_ULTIMATE.start_new_~p~0#1.base_115| 1) |v_ULTIMATE.start_new_~p~0#1.base_114| 1) |v_ULTIMATE.start_new_~p~0#1.base_113| 1) (select (store (store (store (store (store (store (store (select |c_#memory_$Pointer$#1.base| |c_~#slot~0.base|) (+ |c_~#slot~0.offset| (* |c_ULTIMATE.start_main_~j~0#1| 4)) |ULTIMATE.start_main_#t~ret37#1.base|) (+ |c_~#slot~0.offset| (* |v_ULTIMATE.start_main_~j~0#1_207| 4)) |v_ULTIMATE.start_main_#t~ret37#1.base_96|) (+ |c_~#slot~0.offset| (* |v_ULTIMATE.start_main_~j~0#1_206| 4)) |v_ULTIMATE.start_main_#t~ret37#1.base_94|) (+ (* |v_ULTIMATE.start_main_~j~0#1_205| 4) |c_~#slot~0.offset|) |v_ULTIMATE.start_main_#t~ret37#1.base_92|) (+ (* |v_ULTIMATE.start_main_~j~0#1_204| 4) |c_~#slot~0.offset|) |v_ULTIMATE.start_main_#t~ret37#1.base_90|) (+ |c_~#slot~0.offset| (* |v_ULTIMATE.start_main_~j~0#1_203| 4)) |v_ULTIMATE.start_main_#t~ret37#1.base_88|) (+ |c_~#slot~0.offset| (* |v_ULTIMATE.start_main_~j~0#1_202| 4)) |v_ULTIMATE.start_main_#t~ret37#1.base_86|) |c_~#slot~0.offset|)) 1) (< |v_ULTIMATE.start_main_~j~0#1_204| (+ |v_ULTIMATE.start_main_~j~0#1_205| 1)))) is different from false [2024-12-02 13:50:05,854 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 103 treesize of output 101 [2024-12-02 13:50:06,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1340096905206 treesize of output 1340029796342 [2024-12-02 13:50:13,907 WARN L286 SmtUtils]: Spent 7.48s on a formula simplification. DAG size of input: 29454 DAG size of output: 256 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)