/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-time-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 19:01:37,927 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 19:01:37,929 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 19:01:37,968 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 19:01:37,970 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 19:01:37,972 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 19:01:37,976 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 19:01:37,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 19:01:37,984 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 19:01:37,989 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 19:01:37,990 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 19:01:37,992 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 19:01:37,992 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 19:01:37,994 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 19:01:37,995 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 19:01:37,997 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 19:01:37,998 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 19:01:37,999 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 19:01:38,001 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 19:01:38,006 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 19:01:38,007 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 19:01:38,008 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 19:01:38,009 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 19:01:38,010 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 19:01:38,016 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 19:01:38,016 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 19:01:38,017 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 19:01:38,018 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 19:01:38,018 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 19:01:38,019 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 19:01:38,019 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 19:01:38,025 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 19:01:38,025 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 19:01:38,026 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 19:01:38,027 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 19:01:38,027 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 19:01:38,028 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 19:01:38,028 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 19:01:38,028 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 19:01:38,029 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 19:01:38,030 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 19:01:38,033 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-05 19:01:38,073 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 19:01:38,073 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 19:01:38,075 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 19:01:38,075 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 19:01:38,075 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 19:01:38,076 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 19:01:38,076 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 19:01:38,076 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 19:01:38,077 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 19:01:38,077 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 19:01:38,077 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 19:01:38,078 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 19:01:38,078 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 19:01:38,078 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 19:01:38,078 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 19:01:38,078 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 19:01:38,078 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 19:01:38,078 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 19:01:38,078 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 19:01:38,079 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 19:01:38,079 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 19:01:38,079 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 19:01:38,079 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 19:01:38,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 19:01:38,079 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 19:01:38,080 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 19:01:38,080 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 19:01:38,080 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 19:01:38,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 19:01:38,080 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-05 19:01:38,080 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 19:01:38,080 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 19:01:38,370 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 19:01:38,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 19:01:38,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 19:01:38,395 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 19:01:38,396 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 19:01:38,397 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-time-trans.wvr.c [2022-12-05 19:01:39,389 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 19:01:39,633 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 19:01:39,633 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-time-trans.wvr.c [2022-12-05 19:01:39,640 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53208e812/b3522113e96b40a5a87749f0b95098ab/FLAG4ba738534 [2022-12-05 19:01:39,661 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53208e812/b3522113e96b40a5a87749f0b95098ab [2022-12-05 19:01:39,664 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 19:01:39,665 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 19:01:39,668 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 19:01:39,668 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 19:01:39,671 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 19:01:39,672 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 07:01:39" (1/1) ... [2022-12-05 19:01:39,673 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63bb87d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:01:39, skipping insertion in model container [2022-12-05 19:01:39,673 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 07:01:39" (1/1) ... [2022-12-05 19:01:39,679 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 19:01:39,701 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 19:01:39,859 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:01:39,864 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:01:39,866 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:01:39,867 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:01:39,868 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:01:39,869 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:01:39,887 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-time-trans.wvr.c[2836,2849] [2022-12-05 19:01:39,899 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 19:01:39,907 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 19:01:39,922 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:01:39,925 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:01:39,925 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:01:39,926 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:01:39,927 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 19:01:39,928 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 19:01:39,945 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-time-trans.wvr.c[2836,2849] [2022-12-05 19:01:39,947 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 19:01:39,958 INFO L208 MainTranslator]: Completed translation [2022-12-05 19:01:39,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:01:39 WrapperNode [2022-12-05 19:01:39,958 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 19:01:39,960 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 19:01:39,960 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 19:01:39,960 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 19:01:39,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:01:39" (1/1) ... [2022-12-05 19:01:39,982 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:01:39" (1/1) ... [2022-12-05 19:01:40,022 INFO L138 Inliner]: procedures = 23, calls = 39, calls flagged for inlining = 11, calls inlined = 21, statements flattened = 214 [2022-12-05 19:01:40,022 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 19:01:40,024 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 19:01:40,024 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 19:01:40,024 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 19:01:40,032 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:01:39" (1/1) ... [2022-12-05 19:01:40,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:01:39" (1/1) ... [2022-12-05 19:01:40,045 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:01:39" (1/1) ... [2022-12-05 19:01:40,046 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:01:39" (1/1) ... [2022-12-05 19:01:40,052 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:01:39" (1/1) ... [2022-12-05 19:01:40,054 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:01:39" (1/1) ... [2022-12-05 19:01:40,065 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:01:39" (1/1) ... [2022-12-05 19:01:40,066 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:01:39" (1/1) ... [2022-12-05 19:01:40,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 19:01:40,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 19:01:40,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 19:01:40,070 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 19:01:40,071 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:01:39" (1/1) ... [2022-12-05 19:01:40,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 19:01:40,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 19:01:40,102 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-05 19:01:40,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-05 19:01:40,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 19:01:40,143 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-05 19:01:40,143 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-05 19:01:40,143 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-05 19:01:40,143 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-05 19:01:40,143 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-05 19:01:40,143 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-05 19:01:40,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 19:01:40,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 19:01:40,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 19:01:40,144 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-05 19:01:40,144 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-05 19:01:40,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 19:01:40,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 19:01:40,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 19:01:40,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 19:01:40,145 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 19:01:40,258 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 19:01:40,262 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 19:01:40,653 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 19:01:40,965 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 19:01:40,965 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 19:01:40,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 07:01:40 BoogieIcfgContainer [2022-12-05 19:01:40,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 19:01:40,972 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 19:01:40,973 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 19:01:40,975 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 19:01:40,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 07:01:39" (1/3) ... [2022-12-05 19:01:40,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15cffd78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 07:01:40, skipping insertion in model container [2022-12-05 19:01:40,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 07:01:39" (2/3) ... [2022-12-05 19:01:40,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15cffd78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 07:01:40, skipping insertion in model container [2022-12-05 19:01:40,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 07:01:40" (3/3) ... [2022-12-05 19:01:40,981 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-time-trans.wvr.c [2022-12-05 19:01:40,999 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 19:01:40,999 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-05 19:01:41,000 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 19:01:41,066 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-05 19:01:41,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 114 places, 105 transitions, 234 flow [2022-12-05 19:01:41,166 INFO L130 PetriNetUnfolder]: 1/102 cut-off events. [2022-12-05 19:01:41,166 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-05 19:01:41,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 102 events. 1/102 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 20 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2022-12-05 19:01:41,171 INFO L82 GeneralOperation]: Start removeDead. Operand has 114 places, 105 transitions, 234 flow [2022-12-05 19:01:41,174 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 92 transitions, 202 flow [2022-12-05 19:01:41,189 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 19:01:41,195 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@6ac4ce12, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 19:01:41,195 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-05 19:01:41,232 INFO L130 PetriNetUnfolder]: 1/91 cut-off events. [2022-12-05 19:01:41,232 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-05 19:01:41,232 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 19:01:41,233 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 19:01:41,233 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 19:01:41,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 19:01:41,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1228804642, now seen corresponding path program 1 times [2022-12-05 19:01:41,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 19:01:41,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107334435] [2022-12-05 19:01:41,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:01:41,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 19:01:41,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:01:42,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 19:01:42,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 19:01:42,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107334435] [2022-12-05 19:01:42,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107334435] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 19:01:42,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 19:01:42,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 19:01:42,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309928873] [2022-12-05 19:01:42,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 19:01:42,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 19:01:42,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 19:01:42,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 19:01:42,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-05 19:01:42,806 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 105 [2022-12-05 19:01:42,812 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 92 transitions, 202 flow. Second operand has 7 states, 7 states have (on average 75.42857142857143) internal successors, (528), 7 states have internal predecessors, (528), 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) [2022-12-05 19:01:42,813 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 19:01:42,813 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 105 [2022-12-05 19:01:42,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 19:01:43,306 INFO L130 PetriNetUnfolder]: 14/180 cut-off events. [2022-12-05 19:01:43,306 INFO L131 PetriNetUnfolder]: For 49/56 co-relation queries the response was YES. [2022-12-05 19:01:43,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 290 conditions, 180 events. 14/180 cut-off events. For 49/56 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 434 event pairs, 7 based on Foata normal form. 5/177 useless extension candidates. Maximal degree in co-relation 129. Up to 37 conditions per place. [2022-12-05 19:01:43,309 INFO L137 encePairwiseOnDemand]: 95/105 looper letters, 38 selfloop transitions, 4 changer transitions 10/111 dead transitions. [2022-12-05 19:01:43,309 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 111 transitions, 368 flow [2022-12-05 19:01:43,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-05 19:01:43,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-05 19:01:43,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 766 transitions. [2022-12-05 19:01:43,330 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7295238095238096 [2022-12-05 19:01:43,332 INFO L175 Difference]: Start difference. First operand has 101 places, 92 transitions, 202 flow. Second operand 10 states and 766 transitions. [2022-12-05 19:01:43,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 111 transitions, 368 flow [2022-12-05 19:01:43,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 111 transitions, 340 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-12-05 19:01:43,341 INFO L231 Difference]: Finished difference. Result has 109 places, 91 transitions, 209 flow [2022-12-05 19:01:43,343 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=209, PETRI_PLACES=109, PETRI_TRANSITIONS=91} [2022-12-05 19:01:43,347 INFO L294 CegarLoopForPetriNet]: 101 programPoint places, 8 predicate places. [2022-12-05 19:01:43,347 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 91 transitions, 209 flow [2022-12-05 19:01:43,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 75.42857142857143) internal successors, (528), 7 states have internal predecessors, (528), 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) [2022-12-05 19:01:43,348 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 19:01:43,348 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 19:01:43,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 19:01:43,348 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 19:01:43,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 19:01:43,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1119445214, now seen corresponding path program 2 times [2022-12-05 19:01:43,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 19:01:43,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282329094] [2022-12-05 19:01:43,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:01:43,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 19:01:43,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:01:44,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 19:01:44,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 19:01:44,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282329094] [2022-12-05 19:01:44,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282329094] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 19:01:44,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 19:01:44,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 19:01:44,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450918901] [2022-12-05 19:01:44,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 19:01:44,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 19:01:44,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 19:01:44,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 19:01:44,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-05 19:01:44,389 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 105 [2022-12-05 19:01:44,390 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 91 transitions, 209 flow. Second operand has 7 states, 7 states have (on average 75.42857142857143) internal successors, (528), 7 states have internal predecessors, (528), 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) [2022-12-05 19:01:44,390 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 19:01:44,390 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 105 [2022-12-05 19:01:44,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 19:01:44,748 INFO L130 PetriNetUnfolder]: 13/205 cut-off events. [2022-12-05 19:01:44,748 INFO L131 PetriNetUnfolder]: For 60/68 co-relation queries the response was YES. [2022-12-05 19:01:44,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 346 conditions, 205 events. 13/205 cut-off events. For 60/68 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 637 event pairs, 5 based on Foata normal form. 2/201 useless extension candidates. Maximal degree in co-relation 323. Up to 34 conditions per place. [2022-12-05 19:01:44,750 INFO L137 encePairwiseOnDemand]: 97/105 looper letters, 38 selfloop transitions, 5 changer transitions 8/110 dead transitions. [2022-12-05 19:01:44,750 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 110 transitions, 376 flow [2022-12-05 19:01:44,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-05 19:01:44,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-05 19:01:44,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 619 transitions. [2022-12-05 19:01:44,752 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.736904761904762 [2022-12-05 19:01:44,752 INFO L175 Difference]: Start difference. First operand has 109 places, 91 transitions, 209 flow. Second operand 8 states and 619 transitions. [2022-12-05 19:01:44,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 110 transitions, 376 flow [2022-12-05 19:01:44,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 110 transitions, 353 flow, removed 8 selfloop flow, removed 5 redundant places. [2022-12-05 19:01:44,756 INFO L231 Difference]: Finished difference. Result has 110 places, 92 transitions, 226 flow [2022-12-05 19:01:44,756 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=226, PETRI_PLACES=110, PETRI_TRANSITIONS=92} [2022-12-05 19:01:44,757 INFO L294 CegarLoopForPetriNet]: 101 programPoint places, 9 predicate places. [2022-12-05 19:01:44,757 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 92 transitions, 226 flow [2022-12-05 19:01:44,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 75.42857142857143) internal successors, (528), 7 states have internal predecessors, (528), 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) [2022-12-05 19:01:44,758 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 19:01:44,758 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 19:01:44,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 19:01:44,758 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 19:01:44,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 19:01:44,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1628037780, now seen corresponding path program 3 times [2022-12-05 19:01:44,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 19:01:44,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580295884] [2022-12-05 19:01:44,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:01:44,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 19:01:44,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:01:45,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 19:01:45,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 19:01:45,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580295884] [2022-12-05 19:01:45,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580295884] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 19:01:45,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 19:01:45,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 19:01:45,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872403657] [2022-12-05 19:01:45,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 19:01:45,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 19:01:45,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 19:01:45,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 19:01:45,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-05 19:01:45,388 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 105 [2022-12-05 19:01:45,388 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 92 transitions, 226 flow. Second operand has 7 states, 7 states have (on average 75.42857142857143) internal successors, (528), 7 states have internal predecessors, (528), 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) [2022-12-05 19:01:45,388 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 19:01:45,389 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 105 [2022-12-05 19:01:45,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 19:01:45,673 INFO L130 PetriNetUnfolder]: 11/187 cut-off events. [2022-12-05 19:01:45,674 INFO L131 PetriNetUnfolder]: For 89/95 co-relation queries the response was YES. [2022-12-05 19:01:45,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 341 conditions, 187 events. 11/187 cut-off events. For 89/95 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 506 event pairs, 3 based on Foata normal form. 2/184 useless extension candidates. Maximal degree in co-relation 321. Up to 32 conditions per place. [2022-12-05 19:01:45,677 INFO L137 encePairwiseOnDemand]: 97/105 looper letters, 38 selfloop transitions, 5 changer transitions 10/112 dead transitions. [2022-12-05 19:01:45,677 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 112 transitions, 411 flow [2022-12-05 19:01:45,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-05 19:01:45,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-05 19:01:45,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 619 transitions. [2022-12-05 19:01:45,679 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.736904761904762 [2022-12-05 19:01:45,679 INFO L175 Difference]: Start difference. First operand has 110 places, 92 transitions, 226 flow. Second operand 8 states and 619 transitions. [2022-12-05 19:01:45,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 112 transitions, 411 flow [2022-12-05 19:01:45,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 112 transitions, 385 flow, removed 9 selfloop flow, removed 5 redundant places. [2022-12-05 19:01:45,684 INFO L231 Difference]: Finished difference. Result has 114 places, 92 transitions, 236 flow [2022-12-05 19:01:45,684 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=236, PETRI_PLACES=114, PETRI_TRANSITIONS=92} [2022-12-05 19:01:45,686 INFO L294 CegarLoopForPetriNet]: 101 programPoint places, 13 predicate places. [2022-12-05 19:01:45,686 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 92 transitions, 236 flow [2022-12-05 19:01:45,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 75.42857142857143) internal successors, (528), 7 states have internal predecessors, (528), 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) [2022-12-05 19:01:45,688 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 19:01:45,688 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 19:01:45,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 19:01:45,689 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 19:01:45,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 19:01:45,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1420391942, now seen corresponding path program 4 times [2022-12-05 19:01:45,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 19:01:45,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034932157] [2022-12-05 19:01:45,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:01:45,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 19:01:45,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:01:46,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 19:01:46,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 19:01:46,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034932157] [2022-12-05 19:01:46,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034932157] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 19:01:46,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 19:01:46,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 19:01:46,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419852507] [2022-12-05 19:01:46,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 19:01:46,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 19:01:46,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 19:01:46,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 19:01:46,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-05 19:01:46,378 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 105 [2022-12-05 19:01:46,379 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 92 transitions, 236 flow. Second operand has 7 states, 7 states have (on average 75.42857142857143) internal successors, (528), 7 states have internal predecessors, (528), 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) [2022-12-05 19:01:46,379 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 19:01:46,379 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 105 [2022-12-05 19:01:46,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 19:01:46,629 INFO L130 PetriNetUnfolder]: 8/148 cut-off events. [2022-12-05 19:01:46,629 INFO L131 PetriNetUnfolder]: For 113/118 co-relation queries the response was YES. [2022-12-05 19:01:46,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 284 conditions, 148 events. 8/148 cut-off events. For 113/118 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 270 event pairs, 3 based on Foata normal form. 2/147 useless extension candidates. Maximal degree in co-relation 267. Up to 26 conditions per place. [2022-12-05 19:01:46,633 INFO L137 encePairwiseOnDemand]: 97/105 looper letters, 28 selfloop transitions, 3 changer transitions 13/103 dead transitions. [2022-12-05 19:01:46,633 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 103 transitions, 371 flow [2022-12-05 19:01:46,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-05 19:01:46,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-05 19:01:46,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 612 transitions. [2022-12-05 19:01:46,636 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7285714285714285 [2022-12-05 19:01:46,636 INFO L175 Difference]: Start difference. First operand has 114 places, 92 transitions, 236 flow. Second operand 8 states and 612 transitions. [2022-12-05 19:01:46,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 103 transitions, 371 flow [2022-12-05 19:01:46,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 103 transitions, 344 flow, removed 9 selfloop flow, removed 7 redundant places. [2022-12-05 19:01:46,641 INFO L231 Difference]: Finished difference. Result has 115 places, 90 transitions, 217 flow [2022-12-05 19:01:46,642 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=217, PETRI_PLACES=115, PETRI_TRANSITIONS=90} [2022-12-05 19:01:46,643 INFO L294 CegarLoopForPetriNet]: 101 programPoint places, 14 predicate places. [2022-12-05 19:01:46,643 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 90 transitions, 217 flow [2022-12-05 19:01:46,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 75.42857142857143) internal successors, (528), 7 states have internal predecessors, (528), 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) [2022-12-05 19:01:46,644 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 19:01:46,644 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 19:01:46,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 19:01:46,644 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 19:01:46,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 19:01:46,645 INFO L85 PathProgramCache]: Analyzing trace with hash -317670120, now seen corresponding path program 5 times [2022-12-05 19:01:46,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 19:01:46,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143124279] [2022-12-05 19:01:46,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:01:46,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 19:01:46,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:01:47,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 19:01:47,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 19:01:47,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143124279] [2022-12-05 19:01:47,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143124279] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 19:01:47,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 19:01:47,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 19:01:47,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445288303] [2022-12-05 19:01:47,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 19:01:47,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 19:01:47,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 19:01:47,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 19:01:47,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-05 19:01:47,260 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 105 [2022-12-05 19:01:47,260 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 90 transitions, 217 flow. Second operand has 7 states, 7 states have (on average 75.42857142857143) internal successors, (528), 7 states have internal predecessors, (528), 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) [2022-12-05 19:01:47,260 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 19:01:47,260 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 105 [2022-12-05 19:01:47,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 19:01:47,508 INFO L130 PetriNetUnfolder]: 1/115 cut-off events. [2022-12-05 19:01:47,508 INFO L131 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2022-12-05 19:01:47,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 203 conditions, 115 events. 1/115 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 103 event pairs, 0 based on Foata normal form. 1/116 useless extension candidates. Maximal degree in co-relation 187. Up to 22 conditions per place. [2022-12-05 19:01:47,509 INFO L137 encePairwiseOnDemand]: 97/105 looper letters, 28 selfloop transitions, 3 changer transitions 9/99 dead transitions. [2022-12-05 19:01:47,509 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 99 transitions, 340 flow [2022-12-05 19:01:47,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-05 19:01:47,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-05 19:01:47,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 609 transitions. [2022-12-05 19:01:47,511 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.725 [2022-12-05 19:01:47,511 INFO L175 Difference]: Start difference. First operand has 115 places, 90 transitions, 217 flow. Second operand 8 states and 609 transitions. [2022-12-05 19:01:47,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 99 transitions, 340 flow [2022-12-05 19:01:47,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 99 transitions, 300 flow, removed 10 selfloop flow, removed 11 redundant places. [2022-12-05 19:01:47,517 INFO L231 Difference]: Finished difference. Result has 111 places, 90 transitions, 209 flow [2022-12-05 19:01:47,518 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=209, PETRI_PLACES=111, PETRI_TRANSITIONS=90} [2022-12-05 19:01:47,520 INFO L294 CegarLoopForPetriNet]: 101 programPoint places, 10 predicate places. [2022-12-05 19:01:47,520 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 90 transitions, 209 flow [2022-12-05 19:01:47,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 75.42857142857143) internal successors, (528), 7 states have internal predecessors, (528), 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) [2022-12-05 19:01:47,520 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 19:01:47,520 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 19:01:47,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-05 19:01:47,521 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 19:01:47,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 19:01:47,522 INFO L85 PathProgramCache]: Analyzing trace with hash 501425970, now seen corresponding path program 6 times [2022-12-05 19:01:47,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 19:01:47,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150738081] [2022-12-05 19:01:47,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 19:01:47,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 19:01:47,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 19:01:48,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 19:01:48,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 19:01:48,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150738081] [2022-12-05 19:01:48,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150738081] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 19:01:48,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 19:01:48,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 19:01:48,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145222301] [2022-12-05 19:01:48,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 19:01:48,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 19:01:48,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 19:01:48,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 19:01:48,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-05 19:01:48,102 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 105 [2022-12-05 19:01:48,103 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 90 transitions, 209 flow. Second operand has 7 states, 7 states have (on average 75.42857142857143) internal successors, (528), 7 states have internal predecessors, (528), 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) [2022-12-05 19:01:48,103 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 19:01:48,103 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 105 [2022-12-05 19:01:48,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 19:01:48,307 INFO L130 PetriNetUnfolder]: 1/94 cut-off events. [2022-12-05 19:01:48,307 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-12-05 19:01:48,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 94 events. 1/94 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 43 event pairs, 1 based on Foata normal form. 1/94 useless extension candidates. Maximal degree in co-relation 147. Up to 23 conditions per place. [2022-12-05 19:01:48,307 INFO L137 encePairwiseOnDemand]: 97/105 looper letters, 0 selfloop transitions, 0 changer transitions 88/88 dead transitions. [2022-12-05 19:01:48,308 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 88 transitions, 269 flow [2022-12-05 19:01:48,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-05 19:01:48,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-05 19:01:48,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 600 transitions. [2022-12-05 19:01:48,309 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2022-12-05 19:01:48,309 INFO L175 Difference]: Start difference. First operand has 111 places, 90 transitions, 209 flow. Second operand 8 states and 600 transitions. [2022-12-05 19:01:48,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 88 transitions, 269 flow [2022-12-05 19:01:48,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 88 transitions, 257 flow, removed 3 selfloop flow, removed 5 redundant places. [2022-12-05 19:01:48,311 INFO L231 Difference]: Finished difference. Result has 106 places, 0 transitions, 0 flow [2022-12-05 19:01:48,311 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=106, PETRI_TRANSITIONS=0} [2022-12-05 19:01:48,312 INFO L294 CegarLoopForPetriNet]: 101 programPoint places, 5 predicate places. [2022-12-05 19:01:48,312 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 0 transitions, 0 flow [2022-12-05 19:01:48,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 75.42857142857143) internal successors, (528), 7 states have internal predecessors, (528), 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) [2022-12-05 19:01:48,315 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-05 19:01:48,315 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-05 19:01:48,315 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-05 19:01:48,315 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-05 19:01:48,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-05 19:01:48,316 INFO L458 BasicCegarLoop]: Path program histogram: [6] [2022-12-05 19:01:48,318 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 19:01:48,319 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 19:01:48,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 07:01:48 BasicIcfg [2022-12-05 19:01:48,323 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 19:01:48,323 INFO L158 Benchmark]: Toolchain (without parser) took 8658.09ms. Allocated memory was 180.4MB in the beginning and 324.0MB in the end (delta: 143.7MB). Free memory was 157.3MB in the beginning and 109.4MB in the end (delta: 47.9MB). Peak memory consumption was 192.6MB. Max. memory is 8.0GB. [2022-12-05 19:01:48,324 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 180.4MB. Free memory is still 158.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 19:01:48,324 INFO L158 Benchmark]: CACSL2BoogieTranslator took 290.76ms. Allocated memory is still 180.4MB. Free memory was 157.3MB in the beginning and 145.3MB in the end (delta: 12.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-12-05 19:01:48,324 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.05ms. Allocated memory is still 180.4MB. Free memory was 145.3MB in the beginning and 142.6MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-05 19:01:48,324 INFO L158 Benchmark]: Boogie Preprocessor took 45.38ms. Allocated memory is still 180.4MB. Free memory was 142.6MB in the beginning and 141.1MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-05 19:01:48,325 INFO L158 Benchmark]: RCFGBuilder took 899.37ms. Allocated memory was 180.4MB in the beginning and 217.1MB in the end (delta: 36.7MB). Free memory was 141.1MB in the beginning and 175.6MB in the end (delta: -34.5MB). Peak memory consumption was 46.1MB. Max. memory is 8.0GB. [2022-12-05 19:01:48,325 INFO L158 Benchmark]: TraceAbstraction took 7350.53ms. Allocated memory was 217.1MB in the beginning and 324.0MB in the end (delta: 107.0MB). Free memory was 174.6MB in the beginning and 109.4MB in the end (delta: 65.2MB). Peak memory consumption was 173.7MB. Max. memory is 8.0GB. [2022-12-05 19:01:48,327 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 180.4MB. Free memory is still 158.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 290.76ms. Allocated memory is still 180.4MB. Free memory was 157.3MB in the beginning and 145.3MB in the end (delta: 12.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 63.05ms. Allocated memory is still 180.4MB. Free memory was 145.3MB in the beginning and 142.6MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 45.38ms. Allocated memory is still 180.4MB. Free memory was 142.6MB in the beginning and 141.1MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 899.37ms. Allocated memory was 180.4MB in the beginning and 217.1MB in the end (delta: 36.7MB). Free memory was 141.1MB in the beginning and 175.6MB in the end (delta: -34.5MB). Peak memory consumption was 46.1MB. Max. memory is 8.0GB. * TraceAbstraction took 7350.53ms. Allocated memory was 217.1MB in the beginning and 324.0MB in the end (delta: 107.0MB). Free memory was 174.6MB in the beginning and 109.4MB in the end (delta: 65.2MB). Peak memory consumption was 173.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 93]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 120 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 7.2s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 151 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 151 mSDsluCounter, 558 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 424 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 703 IncrementalHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 134 mSDtfsCounter, 703 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=236occurred in iteration=3, InterpolantAutomatonStates: 50, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 540 NumberOfCodeBlocks, 540 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 534 ConstructedInterpolants, 0 QuantifiedInterpolants, 3196 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-05 19:01:48,351 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...