./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6efa0097353392a416215c2535cfc6cdc34364d9b0eb2844e37da9edef467642 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 19:22:06,948 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 19:22:07,026 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 19:22:07,030 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 19:22:07,030 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 19:22:07,055 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 19:22:07,055 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 19:22:07,056 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 19:22:07,057 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 19:22:07,057 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 19:22:07,058 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 19:22:07,058 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 19:22:07,059 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 19:22:07,060 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 19:22:07,061 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 19:22:07,061 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 19:22:07,061 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 19:22:07,061 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 19:22:07,062 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 19:22:07,062 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 19:22:07,062 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 19:22:07,065 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 19:22:07,066 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 19:22:07,066 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 19:22:07,066 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 19:22:07,066 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 19:22:07,067 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 19:22:07,067 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 19:22:07,067 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 19:22:07,067 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 19:22:07,067 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 19:22:07,068 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 19:22:07,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:22:07,068 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 19:22:07,068 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 19:22:07,068 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 19:22:07,069 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 19:22:07,069 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 19:22:07,069 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 19:22:07,069 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 19:22:07,070 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 19:22:07,074 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 19:22:07,074 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6efa0097353392a416215c2535cfc6cdc34364d9b0eb2844e37da9edef467642 [2024-11-16 19:22:07,335 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 19:22:07,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 19:22:07,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 19:22:07,364 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 19:22:07,364 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 19:22:07,365 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.i [2024-11-16 19:22:08,735 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 19:22:09,009 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 19:22:09,011 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.i [2024-11-16 19:22:09,028 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2952d738c/86cb45bd62f44ce4a18dfc1a6dcd873a/FLAG4cf8ee3da [2024-11-16 19:22:09,041 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2952d738c/86cb45bd62f44ce4a18dfc1a6dcd873a [2024-11-16 19:22:09,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 19:22:09,044 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 19:22:09,045 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 19:22:09,045 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 19:22:09,050 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 19:22:09,051 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:22:09" (1/1) ... [2024-11-16 19:22:09,051 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b82febf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:22:09, skipping insertion in model container [2024-11-16 19:22:09,052 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:22:09" (1/1) ... [2024-11-16 19:22:09,088 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 19:22:09,505 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.i[47038,47051] [2024-11-16 19:22:09,523 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-16 19:22:09,524 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-16 19:22:09,524 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-16 19:22:09,525 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-16 19:22:09,568 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:22:09,605 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 19:22:09,644 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.i[47038,47051] [2024-11-16 19:22:09,650 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-16 19:22:09,651 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-16 19:22:09,651 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-16 19:22:09,651 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-16 19:22:09,668 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:22:09,713 INFO L204 MainTranslator]: Completed translation [2024-11-16 19:22:09,714 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:22:09 WrapperNode [2024-11-16 19:22:09,714 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 19:22:09,715 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 19:22:09,715 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 19:22:09,715 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 19:22:09,720 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:22:09" (1/1) ... [2024-11-16 19:22:09,736 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:22:09" (1/1) ... [2024-11-16 19:22:09,772 INFO L138 Inliner]: procedures = 280, calls = 135, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 303 [2024-11-16 19:22:09,773 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 19:22:09,773 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 19:22:09,773 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 19:22:09,774 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 19:22:09,784 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:22:09" (1/1) ... [2024-11-16 19:22:09,786 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:22:09" (1/1) ... [2024-11-16 19:22:09,793 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:22:09" (1/1) ... [2024-11-16 19:22:09,817 INFO L175 MemorySlicer]: Split 110 memory accesses to 4 slices as follows [2, 5, 2, 101]. 92 percent of accesses are in the largest equivalence class. The 87 initializations are split as follows [2, 5, 0, 80]. The 13 writes are split as follows [0, 0, 1, 12]. [2024-11-16 19:22:09,818 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:22:09" (1/1) ... [2024-11-16 19:22:09,818 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:22:09" (1/1) ... [2024-11-16 19:22:09,833 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:22:09" (1/1) ... [2024-11-16 19:22:09,835 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:22:09" (1/1) ... [2024-11-16 19:22:09,837 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:22:09" (1/1) ... [2024-11-16 19:22:09,839 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:22:09" (1/1) ... [2024-11-16 19:22:09,842 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 19:22:09,843 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 19:22:09,843 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 19:22:09,843 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 19:22:09,844 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:22:09" (1/1) ... [2024-11-16 19:22:09,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:22:09,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:22:09,885 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 19:22:09,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 19:22:09,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 19:22:09,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-16 19:22:09,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-16 19:22:09,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-16 19:22:09,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-16 19:22:09,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 19:22:09,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-16 19:22:09,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-16 19:22:09,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-16 19:22:09,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-16 19:22:09,925 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-16 19:22:09,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 19:22:09,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 19:22:09,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-16 19:22:09,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-16 19:22:09,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 19:22:09,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 19:22:09,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-16 19:22:09,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-16 19:22:09,926 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-16 19:22:09,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-16 19:22:09,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 19:22:09,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-16 19:22:09,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-16 19:22:09,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-16 19:22:09,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-16 19:22:09,927 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-16 19:22:09,927 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-16 19:22:09,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 19:22:09,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 19:22:09,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 19:22:09,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 19:22:09,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 19:22:09,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 19:22:09,929 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-16 19:22:10,137 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 19:22:10,139 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 19:22:10,490 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1072: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2024-11-16 19:22:10,490 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1072-1: SUMMARY for call ULTIMATE.dealloc(main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset); srcloc: null [2024-11-16 19:22:10,573 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 19:22:10,573 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 19:22:11,190 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 19:22:11,192 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 19:22:11,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:22:11 BoogieIcfgContainer [2024-11-16 19:22:11,192 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 19:22:11,195 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 19:22:11,196 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 19:22:11,199 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 19:22:11,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:22:09" (1/3) ... [2024-11-16 19:22:11,200 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54720c30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:22:11, skipping insertion in model container [2024-11-16 19:22:11,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:22:09" (2/3) ... [2024-11-16 19:22:11,201 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54720c30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:22:11, skipping insertion in model container [2024-11-16 19:22:11,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:22:11" (3/3) ... [2024-11-16 19:22:11,202 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_92-evilcollapse_racing.i [2024-11-16 19:22:11,219 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 19:22:11,219 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 19:22:11,220 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 19:22:11,282 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-16 19:22:11,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 80 transitions, 167 flow [2024-11-16 19:22:11,361 INFO L124 PetriNetUnfolderBase]: 25/90 cut-off events. [2024-11-16 19:22:11,362 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-16 19:22:11,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 90 events. 25/90 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 176 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 65. Up to 4 conditions per place. [2024-11-16 19:22:11,368 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 80 transitions, 167 flow [2024-11-16 19:22:11,375 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 59 places, 78 transitions, 160 flow [2024-11-16 19:22:11,388 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:22:11,395 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=LoopHeads, 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;@37b37515, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:22:11,396 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-16 19:22:11,407 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 19:22:11,408 INFO L124 PetriNetUnfolderBase]: 8/35 cut-off events. [2024-11-16 19:22:11,408 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 19:22:11,408 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:22:11,409 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-16 19:22:11,410 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 19:22:11,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:22:11,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1410603135, now seen corresponding path program 1 times [2024-11-16 19:22:11,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:22:11,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666605295] [2024-11-16 19:22:11,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:22:11,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:22:11,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:22:11,656 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 19:22:11,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:22:11,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666605295] [2024-11-16 19:22:11,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666605295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:22:11,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:22:11,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 19:22:11,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786360309] [2024-11-16 19:22:11,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:22:11,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 19:22:11,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:22:11,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 19:22:11,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 19:22:11,697 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 80 [2024-11-16 19:22:11,699 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 78 transitions, 160 flow. Second operand has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:22:11,699 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:22:11,699 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 80 [2024-11-16 19:22:11,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:22:11,882 INFO L124 PetriNetUnfolderBase]: 115/369 cut-off events. [2024-11-16 19:22:11,883 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 19:22:11,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 610 conditions, 369 events. 115/369 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1890 event pairs, 95 based on Foata normal form. 116/468 useless extension candidates. Maximal degree in co-relation 573. Up to 237 conditions per place. [2024-11-16 19:22:11,886 INFO L140 encePairwiseOnDemand]: 63/80 looper letters, 32 selfloop transitions, 0 changer transitions 0/61 dead transitions. [2024-11-16 19:22:11,886 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 61 transitions, 190 flow [2024-11-16 19:22:11,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 19:22:11,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-16 19:22:11,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 107 transitions. [2024-11-16 19:22:11,898 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.66875 [2024-11-16 19:22:11,899 INFO L175 Difference]: Start difference. First operand has 59 places, 78 transitions, 160 flow. Second operand 2 states and 107 transitions. [2024-11-16 19:22:11,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 61 transitions, 190 flow [2024-11-16 19:22:11,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 61 transitions, 190 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 19:22:11,904 INFO L231 Difference]: Finished difference. Result has 60 places, 61 transitions, 126 flow [2024-11-16 19:22:11,907 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=126, PETRI_PLACES=60, PETRI_TRANSITIONS=61} [2024-11-16 19:22:11,911 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 1 predicate places. [2024-11-16 19:22:11,911 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 61 transitions, 126 flow [2024-11-16 19:22:11,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:22:11,911 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:22:11,912 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:22:11,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 19:22:11,912 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 19:22:11,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:22:11,913 INFO L85 PathProgramCache]: Analyzing trace with hash 362316910, now seen corresponding path program 1 times [2024-11-16 19:22:11,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:22:11,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134478310] [2024-11-16 19:22:11,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:22:11,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:22:11,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:22:12,055 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 19:22:12,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:22:12,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134478310] [2024-11-16 19:22:12,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134478310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:22:12,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:22:12,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 19:22:12,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122387572] [2024-11-16 19:22:12,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:22:12,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 19:22:12,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:22:12,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 19:22:12,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 19:22:12,062 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 80 [2024-11-16 19:22:12,062 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 61 transitions, 126 flow. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:22:12,063 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:22:12,063 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 80 [2024-11-16 19:22:12,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:22:12,219 INFO L124 PetriNetUnfolderBase]: 116/375 cut-off events. [2024-11-16 19:22:12,219 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 19:22:12,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 621 conditions, 375 events. 116/375 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1880 event pairs, 95 based on Foata normal form. 0/357 useless extension candidates. Maximal degree in co-relation 617. Up to 238 conditions per place. [2024-11-16 19:22:12,222 INFO L140 encePairwiseOnDemand]: 77/80 looper letters, 34 selfloop transitions, 2 changer transitions 0/64 dead transitions. [2024-11-16 19:22:12,222 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 64 transitions, 204 flow [2024-11-16 19:22:12,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 19:22:12,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 19:22:12,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 121 transitions. [2024-11-16 19:22:12,223 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5041666666666667 [2024-11-16 19:22:12,223 INFO L175 Difference]: Start difference. First operand has 60 places, 61 transitions, 126 flow. Second operand 3 states and 121 transitions. [2024-11-16 19:22:12,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 64 transitions, 204 flow [2024-11-16 19:22:12,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 64 transitions, 204 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 19:22:12,226 INFO L231 Difference]: Finished difference. Result has 63 places, 62 transitions, 138 flow [2024-11-16 19:22:12,226 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=138, PETRI_PLACES=63, PETRI_TRANSITIONS=62} [2024-11-16 19:22:12,227 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 4 predicate places. [2024-11-16 19:22:12,227 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 62 transitions, 138 flow [2024-11-16 19:22:12,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:22:12,228 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:22:12,228 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:22:12,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 19:22:12,228 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 19:22:12,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:22:12,229 INFO L85 PathProgramCache]: Analyzing trace with hash 397275521, now seen corresponding path program 1 times [2024-11-16 19:22:12,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:22:12,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798351703] [2024-11-16 19:22:12,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:22:12,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:22:12,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:22:12,305 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 19:22:12,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:22:12,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798351703] [2024-11-16 19:22:12,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798351703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:22:12,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:22:12,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 19:22:12,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894104323] [2024-11-16 19:22:12,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:22:12,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 19:22:12,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:22:12,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 19:22:12,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 19:22:12,309 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 80 [2024-11-16 19:22:12,309 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 62 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:22:12,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:22:12,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 80 [2024-11-16 19:22:12,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:22:12,438 INFO L124 PetriNetUnfolderBase]: 116/379 cut-off events. [2024-11-16 19:22:12,438 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 19:22:12,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 635 conditions, 379 events. 116/379 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1902 event pairs, 95 based on Foata normal form. 0/360 useless extension candidates. Maximal degree in co-relation 629. Up to 242 conditions per place. [2024-11-16 19:22:12,440 INFO L140 encePairwiseOnDemand]: 77/80 looper letters, 33 selfloop transitions, 2 changer transitions 0/63 dead transitions. [2024-11-16 19:22:12,440 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 63 transitions, 210 flow [2024-11-16 19:22:12,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 19:22:12,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 19:22:12,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 119 transitions. [2024-11-16 19:22:12,442 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49583333333333335 [2024-11-16 19:22:12,442 INFO L175 Difference]: Start difference. First operand has 63 places, 62 transitions, 138 flow. Second operand 3 states and 119 transitions. [2024-11-16 19:22:12,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 63 transitions, 210 flow [2024-11-16 19:22:12,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 63 transitions, 208 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 19:22:12,443 INFO L231 Difference]: Finished difference. Result has 65 places, 63 transitions, 148 flow [2024-11-16 19:22:12,444 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=136, 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=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=148, PETRI_PLACES=65, PETRI_TRANSITIONS=63} [2024-11-16 19:22:12,444 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 6 predicate places. [2024-11-16 19:22:12,445 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 63 transitions, 148 flow [2024-11-16 19:22:12,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:22:12,445 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:22:12,445 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:22:12,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 19:22:12,445 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 19:22:12,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:22:12,446 INFO L85 PathProgramCache]: Analyzing trace with hash -419042910, now seen corresponding path program 1 times [2024-11-16 19:22:12,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:22:12,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551136176] [2024-11-16 19:22:12,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:22:12,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:22:12,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:22:12,559 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 19:22:12,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:22:12,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551136176] [2024-11-16 19:22:12,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551136176] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 19:22:12,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726162213] [2024-11-16 19:22:12,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:22:12,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 19:22:12,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:22:12,562 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 19:22:12,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 19:22:12,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:22:12,783 INFO L255 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 19:22:12,788 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 19:22:12,837 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 19:22:12,837 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 19:22:12,859 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 19:22:12,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726162213] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 19:22:12,861 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 19:22:12,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-16 19:22:12,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469149116] [2024-11-16 19:22:12,861 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 19:22:12,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 19:22:12,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:22:12,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 19:22:12,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-16 19:22:12,864 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 80 [2024-11-16 19:22:12,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 63 transitions, 148 flow. Second operand has 7 states, 7 states have (on average 30.0) internal successors, (210), 7 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:22:12,866 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:22:12,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 80 [2024-11-16 19:22:12,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:22:13,156 INFO L124 PetriNetUnfolderBase]: 116/391 cut-off events. [2024-11-16 19:22:13,157 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-16 19:22:13,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 669 conditions, 391 events. 116/391 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1911 event pairs, 95 based on Foata normal form. 0/372 useless extension candidates. Maximal degree in co-relation 662. Up to 242 conditions per place. [2024-11-16 19:22:13,159 INFO L140 encePairwiseOnDemand]: 77/80 looper letters, 33 selfloop transitions, 5 changer transitions 0/66 dead transitions. [2024-11-16 19:22:13,159 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 66 transitions, 236 flow [2024-11-16 19:22:13,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 19:22:13,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 19:22:13,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 208 transitions. [2024-11-16 19:22:13,161 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43333333333333335 [2024-11-16 19:22:13,161 INFO L175 Difference]: Start difference. First operand has 65 places, 63 transitions, 148 flow. Second operand 6 states and 208 transitions. [2024-11-16 19:22:13,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 66 transitions, 236 flow [2024-11-16 19:22:13,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 66 transitions, 234 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 19:22:13,163 INFO L231 Difference]: Finished difference. Result has 72 places, 66 transitions, 182 flow [2024-11-16 19:22:13,163 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=182, PETRI_PLACES=72, PETRI_TRANSITIONS=66} [2024-11-16 19:22:13,164 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 13 predicate places. [2024-11-16 19:22:13,164 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 66 transitions, 182 flow [2024-11-16 19:22:13,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.0) internal successors, (210), 7 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:22:13,164 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:22:13,164 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:22:13,179 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 19:22:13,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 19:22:13,366 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 19:22:13,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:22:13,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1042745211, now seen corresponding path program 2 times [2024-11-16 19:22:13,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:22:13,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776541095] [2024-11-16 19:22:13,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:22:13,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:22:13,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:22:13,538 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-16 19:22:13,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:22:13,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776541095] [2024-11-16 19:22:13,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776541095] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 19:22:13,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115845933] [2024-11-16 19:22:13,538 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-16 19:22:13,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 19:22:13,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:22:13,544 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 19:22:13,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 19:22:13,819 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-16 19:22:13,819 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 19:22:13,822 INFO L255 TraceCheckSpWp]: Trace formula consists of 720 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-16 19:22:13,824 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 19:22:13,874 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 19:22:13,875 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 19:22:13,976 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 19:22:13,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [115845933] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 19:22:13,976 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 19:22:13,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2024-11-16 19:22:13,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921499450] [2024-11-16 19:22:13,976 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 19:22:13,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 19:22:13,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:22:13,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 19:22:13,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-11-16 19:22:13,980 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 80 [2024-11-16 19:22:13,981 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 66 transitions, 182 flow. Second operand has 14 states, 14 states have (on average 28.785714285714285) internal successors, (403), 14 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:22:13,983 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:22:13,983 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 80 [2024-11-16 19:22:13,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:22:14,685 INFO L124 PetriNetUnfolderBase]: 117/441 cut-off events. [2024-11-16 19:22:14,685 INFO L125 PetriNetUnfolderBase]: For 347/347 co-relation queries the response was YES. [2024-11-16 19:22:14,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 827 conditions, 441 events. 117/441 cut-off events. For 347/347 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2040 event pairs, 95 based on Foata normal form. 19/443 useless extension candidates. Maximal degree in co-relation 817. Up to 239 conditions per place. [2024-11-16 19:22:14,691 INFO L140 encePairwiseOnDemand]: 74/80 looper letters, 36 selfloop transitions, 36 changer transitions 0/99 dead transitions. [2024-11-16 19:22:14,692 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 99 transitions, 542 flow [2024-11-16 19:22:14,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-16 19:22:14,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2024-11-16 19:22:14,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 1009 transitions. [2024-11-16 19:22:14,705 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3709558823529412 [2024-11-16 19:22:14,705 INFO L175 Difference]: Start difference. First operand has 72 places, 66 transitions, 182 flow. Second operand 34 states and 1009 transitions. [2024-11-16 19:22:14,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 99 transitions, 542 flow [2024-11-16 19:22:14,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 99 transitions, 518 flow, removed 9 selfloop flow, removed 1 redundant places. [2024-11-16 19:22:14,712 INFO L231 Difference]: Finished difference. Result has 123 places, 97 transitions, 512 flow [2024-11-16 19:22:14,715 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=512, PETRI_PLACES=123, PETRI_TRANSITIONS=97} [2024-11-16 19:22:14,716 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 64 predicate places. [2024-11-16 19:22:14,716 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 97 transitions, 512 flow [2024-11-16 19:22:14,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 28.785714285714285) internal successors, (403), 14 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:22:14,716 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:22:14,717 INFO L204 CegarLoopForPetriNet]: trace histogram [22, 20, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-16 19:22:14,739 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 19:22:14,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 19:22:14,918 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 19:22:14,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:22:14,920 INFO L85 PathProgramCache]: Analyzing trace with hash -812658930, now seen corresponding path program 3 times [2024-11-16 19:22:14,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:22:14,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282170504] [2024-11-16 19:22:14,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:22:14,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:22:15,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:22:16,399 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 246 proven. 110 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-16 19:22:16,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:22:16,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282170504] [2024-11-16 19:22:16,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282170504] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 19:22:16,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988377050] [2024-11-16 19:22:16,400 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-16 19:22:16,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 19:22:16,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:22:16,402 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 19:22:16,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 19:22:16,816 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-16 19:22:16,816 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 19:22:16,820 INFO L255 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-16 19:22:16,822 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 19:22:16,912 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 0 proven. 249 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2024-11-16 19:22:16,912 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 19:22:16,987 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 0 proven. 249 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2024-11-16 19:22:16,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1988377050] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 19:22:16,988 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 19:22:16,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 4, 4] total 19 [2024-11-16 19:22:16,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435851424] [2024-11-16 19:22:16,988 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 19:22:16,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-16 19:22:16,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:22:16,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-16 19:22:16,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2024-11-16 19:22:16,993 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 80 [2024-11-16 19:22:16,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 97 transitions, 512 flow. Second operand has 19 states, 19 states have (on average 29.210526315789473) internal successors, (555), 19 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:22:16,996 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:22:16,996 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 80 [2024-11-16 19:22:16,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:22:18,686 INFO L124 PetriNetUnfolderBase]: 120/533 cut-off events. [2024-11-16 19:22:18,686 INFO L125 PetriNetUnfolderBase]: For 3657/3657 co-relation queries the response was YES. [2024-11-16 19:22:18,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1306 conditions, 533 events. 120/533 cut-off events. For 3657/3657 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1888 event pairs, 95 based on Foata normal form. 10/526 useless extension candidates. Maximal degree in co-relation 1276. Up to 235 conditions per place. [2024-11-16 19:22:18,693 INFO L140 encePairwiseOnDemand]: 74/80 looper letters, 41 selfloop transitions, 80 changer transitions 0/148 dead transitions. [2024-11-16 19:22:18,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 148 transitions, 1375 flow [2024-11-16 19:22:18,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2024-11-16 19:22:18,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2024-11-16 19:22:18,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 2129 transitions. [2024-11-16 19:22:18,702 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.35962837837837835 [2024-11-16 19:22:18,703 INFO L175 Difference]: Start difference. First operand has 123 places, 97 transitions, 512 flow. Second operand 74 states and 2129 transitions. [2024-11-16 19:22:18,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 148 transitions, 1375 flow [2024-11-16 19:22:18,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 148 transitions, 1141 flow, removed 85 selfloop flow, removed 6 redundant places. [2024-11-16 19:22:18,752 INFO L231 Difference]: Finished difference. Result has 200 places, 140 transitions, 871 flow [2024-11-16 19:22:18,753 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=74, PETRI_FLOW=871, PETRI_PLACES=200, PETRI_TRANSITIONS=140} [2024-11-16 19:22:18,755 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 141 predicate places. [2024-11-16 19:22:18,755 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 140 transitions, 871 flow [2024-11-16 19:22:18,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 29.210526315789473) internal successors, (555), 19 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:22:18,756 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:22:18,756 INFO L204 CegarLoopForPetriNet]: trace histogram [72, 66, 7, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-16 19:22:18,771 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-16 19:22:18,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 19:22:18,957 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 19:22:18,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:22:18,959 INFO L85 PathProgramCache]: Analyzing trace with hash -329244626, now seen corresponding path program 4 times [2024-11-16 19:22:18,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:22:18,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108125613] [2024-11-16 19:22:18,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:22:18,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:22:19,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:22:21,965 INFO L134 CoverageAnalysis]: Checked inductivity of 5172 backedges. 1452 proven. 132 refuted. 0 times theorem prover too weak. 3588 trivial. 0 not checked. [2024-11-16 19:22:21,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:22:21,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108125613] [2024-11-16 19:22:21,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108125613] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 19:22:21,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775285485] [2024-11-16 19:22:21,966 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-16 19:22:21,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 19:22:21,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:22:21,970 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 19:22:21,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 19:22:23,962 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-16 19:22:23,962 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 19:22:24,002 INFO L255 TraceCheckSpWp]: Trace formula consists of 6336 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-16 19:22:24,013 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 19:22:24,238 INFO L134 CoverageAnalysis]: Checked inductivity of 5172 backedges. 0 proven. 4377 refuted. 0 times theorem prover too weak. 795 trivial. 0 not checked. [2024-11-16 19:22:24,238 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 19:22:24,511 INFO L134 CoverageAnalysis]: Checked inductivity of 5172 backedges. 0 proven. 4377 refuted. 0 times theorem prover too weak. 795 trivial. 0 not checked. [2024-11-16 19:22:24,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775285485] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 19:22:24,512 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 19:22:24,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8, 8] total 24 [2024-11-16 19:22:24,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643324464] [2024-11-16 19:22:24,512 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 19:22:24,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-16 19:22:24,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:22:24,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-16 19:22:24,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2024-11-16 19:22:24,521 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 80 [2024-11-16 19:22:24,523 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 140 transitions, 871 flow. Second operand has 24 states, 24 states have (on average 29.625) internal successors, (711), 24 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:22:24,524 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:22:24,524 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 80 [2024-11-16 19:22:24,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:22:27,922 INFO L124 PetriNetUnfolderBase]: 124/665 cut-off events. [2024-11-16 19:22:27,922 INFO L125 PetriNetUnfolderBase]: For 9386/9386 co-relation queries the response was YES. [2024-11-16 19:22:27,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1903 conditions, 665 events. 124/665 cut-off events. For 9386/9386 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1892 event pairs, 95 based on Foata normal form. 14/662 useless extension candidates. Maximal degree in co-relation 1863. Up to 235 conditions per place. [2024-11-16 19:22:27,927 INFO L140 encePairwiseOnDemand]: 74/80 looper letters, 49 selfloop transitions, 142 changer transitions 0/218 dead transitions. [2024-11-16 19:22:27,927 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 218 transitions, 2425 flow [2024-11-16 19:22:27,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2024-11-16 19:22:27,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2024-11-16 19:22:27,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 3769 transitions. [2024-11-16 19:22:27,933 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3569128787878788 [2024-11-16 19:22:27,933 INFO L175 Difference]: Start difference. First operand has 200 places, 140 transitions, 871 flow. Second operand 132 states and 3769 transitions. [2024-11-16 19:22:27,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 218 transitions, 2425 flow [2024-11-16 19:22:27,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 218 transitions, 2152 flow, removed 36 selfloop flow, removed 30 redundant places. [2024-11-16 19:22:27,953 INFO L231 Difference]: Finished difference. Result has 315 places, 202 transitions, 1518 flow [2024-11-16 19:22:27,954 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=710, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=132, PETRI_FLOW=1518, PETRI_PLACES=315, PETRI_TRANSITIONS=202} [2024-11-16 19:22:27,955 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 256 predicate places. [2024-11-16 19:22:27,955 INFO L471 AbstractCegarLoop]: Abstraction has has 315 places, 202 transitions, 1518 flow [2024-11-16 19:22:27,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 29.625) internal successors, (711), 24 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:22:27,955 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:22:27,955 INFO L204 CegarLoopForPetriNet]: trace histogram [130, 120, 11, 10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-16 19:22:27,985 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-16 19:22:28,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 19:22:28,157 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 19:22:28,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:22:28,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1240531378, now seen corresponding path program 5 times [2024-11-16 19:22:28,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:22:28,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63449060] [2024-11-16 19:22:28,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:22:28,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:22:30,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:22:33,213 INFO L134 CoverageAnalysis]: Checked inductivity of 16928 backedges. 3062 proven. 156 refuted. 0 times theorem prover too weak. 13710 trivial. 0 not checked. [2024-11-16 19:22:33,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:22:33,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63449060] [2024-11-16 19:22:33,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63449060] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 19:22:33,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [927346336] [2024-11-16 19:22:33,217 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-16 19:22:33,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 19:22:33,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:22:33,219 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 19:22:33,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process