/usr/bin/java -Xmx16000000000 -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/pthread-ext/45_monabsex1_vs.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-18 22:29:36,127 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 22:29:36,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 22:29:36,177 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 22:29:36,177 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 22:29:36,179 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 22:29:36,181 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 22:29:36,184 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 22:29:36,186 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 22:29:36,189 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 22:29:36,189 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 22:29:36,190 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 22:29:36,190 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 22:29:36,192 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 22:29:36,193 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 22:29:36,195 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 22:29:36,195 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 22:29:36,196 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 22:29:36,197 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 22:29:36,198 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 22:29:36,198 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 22:29:36,204 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 22:29:36,205 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 22:29:36,206 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 22:29:36,207 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 22:29:36,211 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 22:29:36,211 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 22:29:36,212 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 22:29:36,212 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 [2022-01-18 22:29:36,228 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 22:29:36,228 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 22:29:36,229 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 22:29:36,229 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 22:29:36,229 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 22:29:36,229 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 22:29:36,229 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 22:29:36,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 22:29:36,229 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 22:29:36,229 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 22:29:36,230 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 22:29:36,230 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 22:29:36,230 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 22:29:36,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 22:29:36,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 22:29:36,230 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 22:29:36,230 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 22:29:36,231 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 22:29:36,231 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 22:29:36,231 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 22:29:36,231 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 22:29:36,231 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 22:29:36,231 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 22:29:36,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 22:29:36,231 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 22:29:36,231 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 22:29:36,231 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 22:29:36,232 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 22:29:36,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 22:29:36,232 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 22:29:36,232 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-18 22:29:36,233 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 22:29:36,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 22:29:36,393 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 22:29:36,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 22:29:36,395 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 22:29:36,395 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 22:29:36,396 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/45_monabsex1_vs.i [2022-01-18 22:29:36,437 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e6ecf80b/165e36faf7c041cdb51d22153327fbbd/FLAGf5e6e4e2c [2022-01-18 22:29:36,824 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 22:29:36,824 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/45_monabsex1_vs.i [2022-01-18 22:29:36,831 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e6ecf80b/165e36faf7c041cdb51d22153327fbbd/FLAGf5e6e4e2c [2022-01-18 22:29:37,226 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e6ecf80b/165e36faf7c041cdb51d22153327fbbd [2022-01-18 22:29:37,228 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 22:29:37,229 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 22:29:37,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 22:29:37,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 22:29:37,234 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 22:29:37,234 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 10:29:37" (1/1) ... [2022-01-18 22:29:37,235 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c1945fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:29:37, skipping insertion in model container [2022-01-18 22:29:37,235 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 10:29:37" (1/1) ... [2022-01-18 22:29:37,241 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 22:29:37,263 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 22:29:37,419 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-01-18 22:29:37,517 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/45_monabsex1_vs.i[30633,30646] [2022-01-18 22:29:37,524 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 22:29:37,530 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 22:29:37,546 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-01-18 22:29:37,569 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/45_monabsex1_vs.i[30633,30646] [2022-01-18 22:29:37,571 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 22:29:37,597 INFO L208 MainTranslator]: Completed translation [2022-01-18 22:29:37,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:29:37 WrapperNode [2022-01-18 22:29:37,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 22:29:37,599 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 22:29:37,599 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 22:29:37,599 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 22:29:37,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:29:37" (1/1) ... [2022-01-18 22:29:37,627 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:29:37" (1/1) ... [2022-01-18 22:29:37,638 INFO L137 Inliner]: procedures = 171, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2022-01-18 22:29:37,639 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 22:29:37,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 22:29:37,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 22:29:37,639 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 22:29:37,644 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:29:37" (1/1) ... [2022-01-18 22:29:37,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:29:37" (1/1) ... [2022-01-18 22:29:37,649 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:29:37" (1/1) ... [2022-01-18 22:29:37,649 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:29:37" (1/1) ... [2022-01-18 22:29:37,661 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:29:37" (1/1) ... [2022-01-18 22:29:37,663 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:29:37" (1/1) ... [2022-01-18 22:29:37,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:29:37" (1/1) ... [2022-01-18 22:29:37,665 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 22:29:37,666 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 22:29:37,666 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 22:29:37,666 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 22:29:37,667 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:29:37" (1/1) ... [2022-01-18 22:29:37,673 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 22:29:37,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 22:29:37,691 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) [2022-01-18 22:29:37,697 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 [2022-01-18 22:29:37,721 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-01-18 22:29:37,722 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-01-18 22:29:37,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 22:29:37,722 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-18 22:29:37,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 22:29:37,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 22:29:37,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 22:29:37,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 22:29:37,722 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-18 22:29:37,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 22:29:37,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 22:29:37,723 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 22:29:37,783 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 22:29:37,784 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 22:29:37,841 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 22:29:37,851 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 22:29:37,852 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-18 22:29:37,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 10:29:37 BoogieIcfgContainer [2022-01-18 22:29:37,853 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 22:29:37,854 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 22:29:37,854 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 22:29:37,881 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 22:29:37,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 10:29:37" (1/3) ... [2022-01-18 22:29:37,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5690518f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 10:29:37, skipping insertion in model container [2022-01-18 22:29:37,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:29:37" (2/3) ... [2022-01-18 22:29:37,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5690518f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 10:29:37, skipping insertion in model container [2022-01-18 22:29:37,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 10:29:37" (3/3) ... [2022-01-18 22:29:37,883 INFO L111 eAbstractionObserver]: Analyzing ICFG 45_monabsex1_vs.i [2022-01-18 22:29:37,887 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 22:29:37,887 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 22:29:37,887 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 22:29:37,912 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:37,912 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:37,913 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:37,913 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:37,913 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:37,913 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:37,913 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:37,913 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:37,913 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:37,914 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:37,927 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:37,927 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:37,927 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:37,927 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:37,928 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:37,928 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:37,928 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:37,928 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:37,928 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:37,928 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:37,928 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:37,929 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:37,929 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:37,929 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:37,929 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:37,929 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:37,930 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:37,930 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:37,932 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:37,932 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:37,932 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:37,933 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:37,933 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:37,933 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:37,935 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-18 22:29:37,965 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 22:29:37,969 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 22:29:37,969 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-18 22:29:37,979 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 42 transitions, 89 flow [2022-01-18 22:29:37,999 INFO L129 PetriNetUnfolder]: 2/53 cut-off events. [2022-01-18 22:29:38,000 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-18 22:29:38,002 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 53 events. 2/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 55 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 28. Up to 4 conditions per place. [2022-01-18 22:29:38,002 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 42 transitions, 89 flow [2022-01-18 22:29:38,004 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 44 places, 42 transitions, 89 flow [2022-01-18 22:29:38,013 INFO L129 PetriNetUnfolder]: 2/46 cut-off events. [2022-01-18 22:29:38,013 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-18 22:29:38,013 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:29:38,014 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:29:38,014 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 22:29:38,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:29:38,018 INFO L85 PathProgramCache]: Analyzing trace with hash 527068737, now seen corresponding path program 1 times [2022-01-18 22:29:38,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:29:38,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189181975] [2022-01-18 22:29:38,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:29:38,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:29:38,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 22:29:38,095 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-18 22:29:38,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 22:29:38,122 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-18 22:29:38,123 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-18 22:29:38,124 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 3 remaining) [2022-01-18 22:29:38,125 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-01-18 22:29:38,125 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-01-18 22:29:38,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 22:29:38,128 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-18 22:29:38,130 WARN L235 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-18 22:29:38,130 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-01-18 22:29:38,137 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,138 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,138 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,138 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,138 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,138 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,138 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,138 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,139 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,139 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,139 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,139 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,140 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,140 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,140 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,140 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,140 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,140 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,140 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,140 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,141 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,141 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,141 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,141 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,141 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,141 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,141 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,142 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,142 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,142 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,142 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,142 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,142 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,142 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,142 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,143 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,143 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,143 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,143 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,143 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,144 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,144 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,144 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,144 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,144 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,144 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,144 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,144 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,145 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,145 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,145 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,145 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,145 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,145 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,145 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,145 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,146 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,146 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,146 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,146 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,146 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,146 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,147 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,147 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,147 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,147 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,147 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,147 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,148 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-18 22:29:38,150 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 22:29:38,151 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 22:29:38,151 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-18 22:29:38,152 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 57 places, 53 transitions, 118 flow [2022-01-18 22:29:38,163 INFO L129 PetriNetUnfolder]: 3/77 cut-off events. [2022-01-18 22:29:38,163 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-18 22:29:38,164 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 77 events. 3/77 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 108 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 54. Up to 6 conditions per place. [2022-01-18 22:29:38,164 INFO L82 GeneralOperation]: Start removeDead. Operand has 57 places, 53 transitions, 118 flow [2022-01-18 22:29:38,165 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 53 transitions, 118 flow [2022-01-18 22:29:38,171 INFO L129 PetriNetUnfolder]: 2/47 cut-off events. [2022-01-18 22:29:38,172 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-01-18 22:29:38,172 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:29:38,172 INFO L254 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] [2022-01-18 22:29:38,172 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 22:29:38,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:29:38,173 INFO L85 PathProgramCache]: Analyzing trace with hash -297621323, now seen corresponding path program 1 times [2022-01-18 22:29:38,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:29:38,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875611555] [2022-01-18 22:29:38,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:29:38,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:29:38,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:29:38,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 22:29:38,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:29:38,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875611555] [2022-01-18 22:29:38,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875611555] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:29:38,235 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:29:38,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 22:29:38,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272629434] [2022-01-18 22:29:38,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:29:38,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 22:29:38,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:29:38,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 22:29:38,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 22:29:38,260 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 53 [2022-01-18 22:29:38,262 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 53 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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) [2022-01-18 22:29:38,262 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:29:38,262 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 53 [2022-01-18 22:29:38,263 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:29:38,301 INFO L129 PetriNetUnfolder]: 19/117 cut-off events. [2022-01-18 22:29:38,301 INFO L130 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2022-01-18 22:29:38,302 INFO L84 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 117 events. 19/117 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 352 event pairs, 10 based on Foata normal form. 35/137 useless extension candidates. Maximal degree in co-relation 119. Up to 37 conditions per place. [2022-01-18 22:29:38,303 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 14 selfloop transitions, 3 changer transitions 0/51 dead transitions. [2022-01-18 22:29:38,303 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 51 transitions, 153 flow [2022-01-18 22:29:38,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 22:29:38,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-18 22:29:38,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 139 transitions. [2022-01-18 22:29:38,312 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8742138364779874 [2022-01-18 22:29:38,312 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 139 transitions. [2022-01-18 22:29:38,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 139 transitions. [2022-01-18 22:29:38,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:29:38,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 139 transitions. [2022-01-18 22:29:38,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:29:38,319 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 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) [2022-01-18 22:29:38,319 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 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) [2022-01-18 22:29:38,320 INFO L186 Difference]: Start difference. First operand has 57 places, 53 transitions, 118 flow. Second operand 3 states and 139 transitions. [2022-01-18 22:29:38,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 51 transitions, 153 flow [2022-01-18 22:29:38,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 51 transitions, 151 flow, removed 1 selfloop flow, removed 0 redundant places. [2022-01-18 22:29:38,324 INFO L242 Difference]: Finished difference. Result has 55 places, 48 transitions, 124 flow [2022-01-18 22:29:38,325 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=124, PETRI_PLACES=55, PETRI_TRANSITIONS=48} [2022-01-18 22:29:38,328 INFO L334 CegarLoopForPetriNet]: 57 programPoint places, -2 predicate places. [2022-01-18 22:29:38,328 INFO L470 AbstractCegarLoop]: Abstraction has has 55 places, 48 transitions, 124 flow [2022-01-18 22:29:38,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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) [2022-01-18 22:29:38,329 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:29:38,329 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:29:38,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 22:29:38,329 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 22:29:38,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:29:38,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1916139092, now seen corresponding path program 1 times [2022-01-18 22:29:38,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:29:38,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011846586] [2022-01-18 22:29:38,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:29:38,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:29:38,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 22:29:38,346 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-18 22:29:38,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 22:29:38,361 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-18 22:29:38,361 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-18 22:29:38,362 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 4 remaining) [2022-01-18 22:29:38,362 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2022-01-18 22:29:38,362 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2022-01-18 22:29:38,363 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-01-18 22:29:38,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 22:29:38,363 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-18 22:29:38,363 WARN L235 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-18 22:29:38,363 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-01-18 22:29:38,371 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,371 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,372 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,372 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,372 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,372 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,372 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,372 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,372 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,373 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,373 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,373 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,373 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,373 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,373 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,374 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,374 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,374 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,374 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,374 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,374 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,374 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,374 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,375 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,375 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,375 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,375 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,375 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,375 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,376 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,376 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,376 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,376 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,376 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,376 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,376 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,376 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,377 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,377 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,377 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,377 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,377 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,378 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,378 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,378 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,378 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,378 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,378 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,378 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,378 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,379 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,379 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,379 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,379 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,379 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,379 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,380 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,380 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,380 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,380 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,380 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,380 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,380 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,380 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,380 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,381 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,381 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,382 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,382 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,382 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,382 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,382 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,382 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,382 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,382 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,383 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,383 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,383 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,383 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,383 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,383 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,383 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,383 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,384 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,384 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,384 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,384 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,384 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,384 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,385 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,385 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,385 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,385 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,386 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,386 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,386 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,386 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,386 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,387 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,387 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,387 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,387 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:38,387 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-18 22:29:38,389 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 22:29:38,390 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 22:29:38,390 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-18 22:29:38,391 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 64 transitions, 149 flow [2022-01-18 22:29:38,400 INFO L129 PetriNetUnfolder]: 4/101 cut-off events. [2022-01-18 22:29:38,401 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-01-18 22:29:38,401 INFO L84 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 101 events. 4/101 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 161 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 81. Up to 8 conditions per place. [2022-01-18 22:29:38,401 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 64 transitions, 149 flow [2022-01-18 22:29:38,402 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 70 places, 64 transitions, 149 flow [2022-01-18 22:29:38,406 INFO L129 PetriNetUnfolder]: 2/47 cut-off events. [2022-01-18 22:29:38,406 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-01-18 22:29:38,406 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:29:38,407 INFO L254 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] [2022-01-18 22:29:38,407 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 22:29:38,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:29:38,407 INFO L85 PathProgramCache]: Analyzing trace with hash 833747371, now seen corresponding path program 1 times [2022-01-18 22:29:38,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:29:38,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130025309] [2022-01-18 22:29:38,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:29:38,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:29:38,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:29:38,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 22:29:38,438 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:29:38,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130025309] [2022-01-18 22:29:38,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130025309] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:29:38,439 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:29:38,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 22:29:38,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406133021] [2022-01-18 22:29:38,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:29:38,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 22:29:38,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:29:38,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 22:29:38,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 22:29:38,440 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 64 [2022-01-18 22:29:38,441 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 64 transitions, 149 flow. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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) [2022-01-18 22:29:38,441 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:29:38,441 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 64 [2022-01-18 22:29:38,441 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:29:38,535 INFO L129 PetriNetUnfolder]: 203/539 cut-off events. [2022-01-18 22:29:38,535 INFO L130 PetriNetUnfolder]: For 193/193 co-relation queries the response was YES. [2022-01-18 22:29:38,537 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1044 conditions, 539 events. 203/539 cut-off events. For 193/193 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3172 event pairs, 124 based on Foata normal form. 160/601 useless extension candidates. Maximal degree in co-relation 680. Up to 259 conditions per place. [2022-01-18 22:29:38,541 INFO L132 encePairwiseOnDemand]: 57/64 looper letters, 21 selfloop transitions, 4 changer transitions 0/66 dead transitions. [2022-01-18 22:29:38,541 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 66 transitions, 215 flow [2022-01-18 22:29:38,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 22:29:38,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-18 22:29:38,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 168 transitions. [2022-01-18 22:29:38,543 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.875 [2022-01-18 22:29:38,543 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 168 transitions. [2022-01-18 22:29:38,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 168 transitions. [2022-01-18 22:29:38,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:29:38,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 168 transitions. [2022-01-18 22:29:38,547 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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) [2022-01-18 22:29:38,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2022-01-18 22:29:38,548 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2022-01-18 22:29:38,548 INFO L186 Difference]: Start difference. First operand has 70 places, 64 transitions, 149 flow. Second operand 3 states and 168 transitions. [2022-01-18 22:29:38,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 66 transitions, 215 flow [2022-01-18 22:29:38,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 66 transitions, 207 flow, removed 4 selfloop flow, removed 0 redundant places. [2022-01-18 22:29:38,550 INFO L242 Difference]: Finished difference. Result has 68 places, 60 transitions, 159 flow [2022-01-18 22:29:38,551 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=159, PETRI_PLACES=68, PETRI_TRANSITIONS=60} [2022-01-18 22:29:38,551 INFO L334 CegarLoopForPetriNet]: 70 programPoint places, -2 predicate places. [2022-01-18 22:29:38,551 INFO L470 AbstractCegarLoop]: Abstraction has has 68 places, 60 transitions, 159 flow [2022-01-18 22:29:38,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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) [2022-01-18 22:29:38,552 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:29:38,552 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:29:38,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 22:29:38,552 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 22:29:38,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:29:38,553 INFO L85 PathProgramCache]: Analyzing trace with hash 681039901, now seen corresponding path program 1 times [2022-01-18 22:29:38,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:29:38,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154616619] [2022-01-18 22:29:38,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:29:38,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:29:38,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:29:38,582 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-18 22:29:38,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:29:38,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154616619] [2022-01-18 22:29:38,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154616619] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:29:38,583 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:29:38,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 22:29:38,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692837831] [2022-01-18 22:29:38,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:29:38,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 22:29:38,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:29:38,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 22:29:38,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 22:29:38,584 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 64 [2022-01-18 22:29:38,585 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 60 transitions, 159 flow. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:29:38,585 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:29:38,585 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 64 [2022-01-18 22:29:38,585 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:29:38,653 INFO L129 PetriNetUnfolder]: 222/629 cut-off events. [2022-01-18 22:29:38,654 INFO L130 PetriNetUnfolder]: For 339/339 co-relation queries the response was YES. [2022-01-18 22:29:38,656 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1411 conditions, 629 events. 222/629 cut-off events. For 339/339 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 3941 event pairs, 113 based on Foata normal form. 0/556 useless extension candidates. Maximal degree in co-relation 1347. Up to 292 conditions per place. [2022-01-18 22:29:38,659 INFO L132 encePairwiseOnDemand]: 59/64 looper letters, 23 selfloop transitions, 6 changer transitions 0/70 dead transitions. [2022-01-18 22:29:38,659 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 70 transitions, 260 flow [2022-01-18 22:29:38,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 22:29:38,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-18 22:29:38,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 163 transitions. [2022-01-18 22:29:38,661 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8489583333333334 [2022-01-18 22:29:38,661 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 163 transitions. [2022-01-18 22:29:38,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 163 transitions. [2022-01-18 22:29:38,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:29:38,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 163 transitions. [2022-01-18 22:29:38,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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) [2022-01-18 22:29:38,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2022-01-18 22:29:38,663 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2022-01-18 22:29:38,663 INFO L186 Difference]: Start difference. First operand has 68 places, 60 transitions, 159 flow. Second operand 3 states and 163 transitions. [2022-01-18 22:29:38,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 70 transitions, 260 flow [2022-01-18 22:29:38,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 70 transitions, 246 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-01-18 22:29:38,666 INFO L242 Difference]: Finished difference. Result has 70 places, 64 transitions, 199 flow [2022-01-18 22:29:38,666 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=199, PETRI_PLACES=70, PETRI_TRANSITIONS=64} [2022-01-18 22:29:38,667 INFO L334 CegarLoopForPetriNet]: 70 programPoint places, 0 predicate places. [2022-01-18 22:29:38,667 INFO L470 AbstractCegarLoop]: Abstraction has has 70 places, 64 transitions, 199 flow [2022-01-18 22:29:38,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 22:29:38,667 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:29:38,667 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:29:38,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 22:29:38,667 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 22:29:38,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:29:38,668 INFO L85 PathProgramCache]: Analyzing trace with hash -932714154, now seen corresponding path program 1 times [2022-01-18 22:29:38,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:29:38,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942901757] [2022-01-18 22:29:38,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:29:38,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:29:38,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:29:38,707 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-18 22:29:38,707 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:29:38,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942901757] [2022-01-18 22:29:38,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942901757] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:29:38,708 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:29:38,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 22:29:38,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296536984] [2022-01-18 22:29:38,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:29:38,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 22:29:38,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:29:38,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 22:29:38,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 22:29:38,709 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 64 [2022-01-18 22:29:38,710 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 64 transitions, 199 flow. Second operand has 5 states, 5 states have (on average 46.2) internal successors, (231), 5 states have internal predecessors, (231), 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) [2022-01-18 22:29:38,710 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:29:38,710 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 64 [2022-01-18 22:29:38,710 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:29:38,874 INFO L129 PetriNetUnfolder]: 464/1205 cut-off events. [2022-01-18 22:29:38,874 INFO L130 PetriNetUnfolder]: For 794/794 co-relation queries the response was YES. [2022-01-18 22:29:38,878 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3084 conditions, 1205 events. 464/1205 cut-off events. For 794/794 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 8695 event pairs, 91 based on Foata normal form. 10/1068 useless extension candidates. Maximal degree in co-relation 3004. Up to 282 conditions per place. [2022-01-18 22:29:38,886 INFO L132 encePairwiseOnDemand]: 55/64 looper letters, 50 selfloop transitions, 23 changer transitions 0/112 dead transitions. [2022-01-18 22:29:38,886 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 112 transitions, 573 flow [2022-01-18 22:29:38,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 22:29:38,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-18 22:29:38,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 371 transitions. [2022-01-18 22:29:38,928 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.828125 [2022-01-18 22:29:38,929 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 371 transitions. [2022-01-18 22:29:38,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 371 transitions. [2022-01-18 22:29:38,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:29:38,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 371 transitions. [2022-01-18 22:29:38,930 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 53.0) internal successors, (371), 7 states have internal predecessors, (371), 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) [2022-01-18 22:29:38,931 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 64.0) internal successors, (512), 8 states have internal predecessors, (512), 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) [2022-01-18 22:29:38,932 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 64.0) internal successors, (512), 8 states have internal predecessors, (512), 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) [2022-01-18 22:29:38,932 INFO L186 Difference]: Start difference. First operand has 70 places, 64 transitions, 199 flow. Second operand 7 states and 371 transitions. [2022-01-18 22:29:38,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 112 transitions, 573 flow [2022-01-18 22:29:38,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 112 transitions, 541 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-01-18 22:29:38,936 INFO L242 Difference]: Finished difference. Result has 78 places, 83 transitions, 387 flow [2022-01-18 22:29:38,936 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=387, PETRI_PLACES=78, PETRI_TRANSITIONS=83} [2022-01-18 22:29:38,937 INFO L334 CegarLoopForPetriNet]: 70 programPoint places, 8 predicate places. [2022-01-18 22:29:38,937 INFO L470 AbstractCegarLoop]: Abstraction has has 78 places, 83 transitions, 387 flow [2022-01-18 22:29:38,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.2) internal successors, (231), 5 states have internal predecessors, (231), 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) [2022-01-18 22:29:38,937 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:29:38,937 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:29:38,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 22:29:38,938 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 22:29:38,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:29:38,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1486133546, now seen corresponding path program 2 times [2022-01-18 22:29:38,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:29:38,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146036479] [2022-01-18 22:29:38,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:29:38,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:29:38,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:29:39,027 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-18 22:29:39,027 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:29:39,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146036479] [2022-01-18 22:29:39,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146036479] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:29:39,027 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:29:39,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 22:29:39,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933581166] [2022-01-18 22:29:39,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:29:39,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 22:29:39,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:29:39,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 22:29:39,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 22:29:39,031 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 64 [2022-01-18 22:29:39,031 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 83 transitions, 387 flow. Second operand has 5 states, 5 states have (on average 46.2) internal successors, (231), 5 states have internal predecessors, (231), 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) [2022-01-18 22:29:39,031 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:29:39,031 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 64 [2022-01-18 22:29:39,031 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:29:39,241 INFO L129 PetriNetUnfolder]: 441/1220 cut-off events. [2022-01-18 22:29:39,242 INFO L130 PetriNetUnfolder]: For 1541/1541 co-relation queries the response was YES. [2022-01-18 22:29:39,245 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3624 conditions, 1220 events. 441/1220 cut-off events. For 1541/1541 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 9154 event pairs, 114 based on Foata normal form. 20/1129 useless extension candidates. Maximal degree in co-relation 3538. Up to 241 conditions per place. [2022-01-18 22:29:39,251 INFO L132 encePairwiseOnDemand]: 55/64 looper letters, 52 selfloop transitions, 26 changer transitions 0/117 dead transitions. [2022-01-18 22:29:39,251 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 117 transitions, 734 flow [2022-01-18 22:29:39,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 22:29:39,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-18 22:29:39,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 322 transitions. [2022-01-18 22:29:39,253 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8385416666666666 [2022-01-18 22:29:39,253 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 322 transitions. [2022-01-18 22:29:39,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 322 transitions. [2022-01-18 22:29:39,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:29:39,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 322 transitions. [2022-01-18 22:29:39,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 53.666666666666664) internal successors, (322), 6 states have internal predecessors, (322), 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) [2022-01-18 22:29:39,257 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 64.0) internal successors, (448), 7 states have internal predecessors, (448), 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) [2022-01-18 22:29:39,257 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 64.0) internal successors, (448), 7 states have internal predecessors, (448), 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) [2022-01-18 22:29:39,257 INFO L186 Difference]: Start difference. First operand has 78 places, 83 transitions, 387 flow. Second operand 6 states and 322 transitions. [2022-01-18 22:29:39,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 117 transitions, 734 flow [2022-01-18 22:29:39,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 117 transitions, 732 flow, removed 1 selfloop flow, removed 0 redundant places. [2022-01-18 22:29:39,267 INFO L242 Difference]: Finished difference. Result has 87 places, 92 transitions, 574 flow [2022-01-18 22:29:39,267 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=385, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=574, PETRI_PLACES=87, PETRI_TRANSITIONS=92} [2022-01-18 22:29:39,268 INFO L334 CegarLoopForPetriNet]: 70 programPoint places, 17 predicate places. [2022-01-18 22:29:39,268 INFO L470 AbstractCegarLoop]: Abstraction has has 87 places, 92 transitions, 574 flow [2022-01-18 22:29:39,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.2) internal successors, (231), 5 states have internal predecessors, (231), 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) [2022-01-18 22:29:39,269 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:29:39,269 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:29:39,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 22:29:39,270 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 22:29:39,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:29:39,270 INFO L85 PathProgramCache]: Analyzing trace with hash -468720811, now seen corresponding path program 1 times [2022-01-18 22:29:39,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:29:39,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334738478] [2022-01-18 22:29:39,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:29:39,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:29:39,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 22:29:39,300 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-18 22:29:39,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 22:29:39,317 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-18 22:29:39,317 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-18 22:29:39,317 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 5 remaining) [2022-01-18 22:29:39,317 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-01-18 22:29:39,318 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2022-01-18 22:29:39,318 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2022-01-18 22:29:39,318 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-01-18 22:29:39,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 22:29:39,320 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2022-01-18 22:29:39,321 WARN L235 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-18 22:29:39,321 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-01-18 22:29:39,332 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,332 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,332 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,332 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,332 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,333 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,333 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,333 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,333 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,333 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,333 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,333 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,333 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,333 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,334 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,334 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,334 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,334 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,334 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,334 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,334 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,334 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,334 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,334 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,334 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,335 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,335 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,335 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,335 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,335 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,335 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,335 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,335 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,335 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,335 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,336 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,336 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,340 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,340 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,340 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,340 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,341 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,341 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,341 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,342 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,342 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,342 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,342 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,343 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,343 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,343 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,343 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,343 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,343 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,343 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,344 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,344 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,344 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,345 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,345 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,345 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,345 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,345 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,345 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,345 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,346 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,346 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,346 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,346 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,346 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,346 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,347 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,347 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,347 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,347 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,347 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,347 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,347 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,347 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,347 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,347 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,347 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,347 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,348 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,348 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,348 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,349 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,349 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,349 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,349 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,349 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,349 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,349 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,349 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,349 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,349 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,349 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,350 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,350 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,350 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,350 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,350 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,350 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,350 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,350 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,350 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,350 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,351 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,351 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,351 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,351 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,351 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,352 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,352 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,352 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,352 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,352 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,352 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,353 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,353 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,353 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,353 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,353 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,353 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,354 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,354 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,354 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,354 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,355 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,355 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,355 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,355 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,355 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,355 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,355 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,355 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:39,356 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-18 22:29:39,358 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 22:29:39,358 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 22:29:39,358 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-18 22:29:39,360 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 182 flow [2022-01-18 22:29:39,370 INFO L129 PetriNetUnfolder]: 5/125 cut-off events. [2022-01-18 22:29:39,370 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-01-18 22:29:39,370 INFO L84 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 125 events. 5/125 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 217 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 109. Up to 10 conditions per place. [2022-01-18 22:29:39,371 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 75 transitions, 182 flow [2022-01-18 22:29:39,371 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 75 transitions, 182 flow [2022-01-18 22:29:39,373 INFO L129 PetriNetUnfolder]: 2/47 cut-off events. [2022-01-18 22:29:39,374 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-01-18 22:29:39,374 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:29:39,374 INFO L254 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] [2022-01-18 22:29:39,374 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 22:29:39,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:29:39,374 INFO L85 PathProgramCache]: Analyzing trace with hash -456275018, now seen corresponding path program 1 times [2022-01-18 22:29:39,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:29:39,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916443678] [2022-01-18 22:29:39,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:29:39,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:29:39,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:29:39,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 22:29:39,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:29:39,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916443678] [2022-01-18 22:29:39,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916443678] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:29:39,404 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:29:39,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 22:29:39,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628147328] [2022-01-18 22:29:39,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:29:39,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 22:29:39,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:29:39,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 22:29:39,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 22:29:39,406 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 75 [2022-01-18 22:29:39,406 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 75 transitions, 182 flow. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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) [2022-01-18 22:29:39,406 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:29:39,406 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 75 [2022-01-18 22:29:39,406 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:29:39,606 INFO L129 PetriNetUnfolder]: 1344/2642 cut-off events. [2022-01-18 22:29:39,606 INFO L130 PetriNetUnfolder]: For 1446/1446 co-relation queries the response was YES. [2022-01-18 22:29:39,615 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5424 conditions, 2642 events. 1344/2642 cut-off events. For 1446/1446 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 19115 event pairs, 870 based on Foata normal form. 669/2762 useless extension candidates. Maximal degree in co-relation 3515. Up to 1494 conditions per place. [2022-01-18 22:29:39,630 INFO L132 encePairwiseOnDemand]: 67/75 looper letters, 28 selfloop transitions, 5 changer transitions 0/81 dead transitions. [2022-01-18 22:29:39,631 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 81 transitions, 281 flow [2022-01-18 22:29:39,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 22:29:39,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-18 22:29:39,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2022-01-18 22:29:39,632 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8755555555555555 [2022-01-18 22:29:39,632 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 197 transitions. [2022-01-18 22:29:39,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 197 transitions. [2022-01-18 22:29:39,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:29:39,632 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 197 transitions. [2022-01-18 22:29:39,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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) [2022-01-18 22:29:39,633 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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) [2022-01-18 22:29:39,633 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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) [2022-01-18 22:29:39,633 INFO L186 Difference]: Start difference. First operand has 83 places, 75 transitions, 182 flow. Second operand 3 states and 197 transitions. [2022-01-18 22:29:39,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 81 transitions, 281 flow [2022-01-18 22:29:39,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 81 transitions, 263 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-01-18 22:29:39,636 INFO L242 Difference]: Finished difference. Result has 81 places, 72 transitions, 194 flow [2022-01-18 22:29:39,636 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=194, PETRI_PLACES=81, PETRI_TRANSITIONS=72} [2022-01-18 22:29:39,637 INFO L334 CegarLoopForPetriNet]: 83 programPoint places, -2 predicate places. [2022-01-18 22:29:39,637 INFO L470 AbstractCegarLoop]: Abstraction has has 81 places, 72 transitions, 194 flow [2022-01-18 22:29:39,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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) [2022-01-18 22:29:39,638 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:29:39,638 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:29:39,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 22:29:39,638 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 22:29:39,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:29:39,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1917209497, now seen corresponding path program 1 times [2022-01-18 22:29:39,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:29:39,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700442405] [2022-01-18 22:29:39,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:29:39,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:29:39,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:29:39,675 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-18 22:29:39,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:29:39,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700442405] [2022-01-18 22:29:39,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700442405] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:29:39,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:29:39,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 22:29:39,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517725926] [2022-01-18 22:29:39,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:29:39,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 22:29:39,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:29:39,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 22:29:39,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 22:29:39,677 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 75 [2022-01-18 22:29:39,677 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 72 transitions, 194 flow. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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) [2022-01-18 22:29:39,677 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:29:39,677 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 75 [2022-01-18 22:29:39,678 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:29:39,973 INFO L129 PetriNetUnfolder]: 1768/3569 cut-off events. [2022-01-18 22:29:39,973 INFO L130 PetriNetUnfolder]: For 2165/2165 co-relation queries the response was YES. [2022-01-18 22:29:39,985 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8437 conditions, 3569 events. 1768/3569 cut-off events. For 2165/2165 co-relation queries the response was YES. Maximal size of possible extension queue 257. Compared 27730 event pairs, 936 based on Foata normal form. 0/3024 useless extension candidates. Maximal degree in co-relation 8372. Up to 2004 conditions per place. [2022-01-18 22:29:40,012 INFO L132 encePairwiseOnDemand]: 69/75 looper letters, 31 selfloop transitions, 8 changer transitions 0/87 dead transitions. [2022-01-18 22:29:40,013 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 87 transitions, 336 flow [2022-01-18 22:29:40,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 22:29:40,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-18 22:29:40,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 192 transitions. [2022-01-18 22:29:40,014 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8533333333333334 [2022-01-18 22:29:40,014 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 192 transitions. [2022-01-18 22:29:40,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 192 transitions. [2022-01-18 22:29:40,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:29:40,014 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 192 transitions. [2022-01-18 22:29:40,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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) [2022-01-18 22:29:40,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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) [2022-01-18 22:29:40,015 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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) [2022-01-18 22:29:40,015 INFO L186 Difference]: Start difference. First operand has 81 places, 72 transitions, 194 flow. Second operand 3 states and 192 transitions. [2022-01-18 22:29:40,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 87 transitions, 336 flow [2022-01-18 22:29:40,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 87 transitions, 318 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-01-18 22:29:40,022 INFO L242 Difference]: Finished difference. Result has 83 places, 78 transitions, 252 flow [2022-01-18 22:29:40,023 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=252, PETRI_PLACES=83, PETRI_TRANSITIONS=78} [2022-01-18 22:29:40,024 INFO L334 CegarLoopForPetriNet]: 83 programPoint places, 0 predicate places. [2022-01-18 22:29:40,024 INFO L470 AbstractCegarLoop]: Abstraction has has 83 places, 78 transitions, 252 flow [2022-01-18 22:29:40,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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) [2022-01-18 22:29:40,024 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:29:40,024 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:29:40,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-18 22:29:40,024 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 22:29:40,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:29:40,025 INFO L85 PathProgramCache]: Analyzing trace with hash -870085120, now seen corresponding path program 1 times [2022-01-18 22:29:40,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:29:40,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988291165] [2022-01-18 22:29:40,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:29:40,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:29:40,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:29:40,073 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-18 22:29:40,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:29:40,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988291165] [2022-01-18 22:29:40,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988291165] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:29:40,074 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:29:40,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 22:29:40,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408125040] [2022-01-18 22:29:40,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:29:40,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 22:29:40,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:29:40,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 22:29:40,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 22:29:40,075 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 75 [2022-01-18 22:29:40,076 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 78 transitions, 252 flow. Second operand has 5 states, 5 states have (on average 53.2) internal successors, (266), 5 states have internal predecessors, (266), 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) [2022-01-18 22:29:40,076 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:29:40,076 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 75 [2022-01-18 22:29:40,076 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:29:40,666 INFO L129 PetriNetUnfolder]: 3702/7308 cut-off events. [2022-01-18 22:29:40,666 INFO L130 PetriNetUnfolder]: For 5958/7308 co-relation queries the response was YES. [2022-01-18 22:29:40,688 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19270 conditions, 7308 events. 3702/7308 cut-off events. For 5958/7308 co-relation queries the response was YES. Maximal size of possible extension queue 459. Compared 61634 event pairs, 920 based on Foata normal form. 76/6186 useless extension candidates. Maximal degree in co-relation 19189. Up to 1986 conditions per place. [2022-01-18 22:29:40,725 INFO L132 encePairwiseOnDemand]: 65/75 looper letters, 73 selfloop transitions, 29 changer transitions 0/148 dead transitions. [2022-01-18 22:29:40,726 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 148 transitions, 787 flow [2022-01-18 22:29:40,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 22:29:40,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-18 22:29:40,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 444 transitions. [2022-01-18 22:29:40,728 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8457142857142858 [2022-01-18 22:29:40,728 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 444 transitions. [2022-01-18 22:29:40,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 444 transitions. [2022-01-18 22:29:40,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:29:40,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 444 transitions. [2022-01-18 22:29:40,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 63.42857142857143) internal successors, (444), 7 states have internal predecessors, (444), 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) [2022-01-18 22:29:40,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 75.0) internal successors, (600), 8 states have internal predecessors, (600), 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) [2022-01-18 22:29:40,730 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 75.0) internal successors, (600), 8 states have internal predecessors, (600), 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) [2022-01-18 22:29:40,730 INFO L186 Difference]: Start difference. First operand has 83 places, 78 transitions, 252 flow. Second operand 7 states and 444 transitions. [2022-01-18 22:29:40,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 148 transitions, 787 flow [2022-01-18 22:29:40,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 148 transitions, 745 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-01-18 22:29:40,749 INFO L242 Difference]: Finished difference. Result has 91 places, 101 transitions, 484 flow [2022-01-18 22:29:40,749 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=484, PETRI_PLACES=91, PETRI_TRANSITIONS=101} [2022-01-18 22:29:40,749 INFO L334 CegarLoopForPetriNet]: 83 programPoint places, 8 predicate places. [2022-01-18 22:29:40,750 INFO L470 AbstractCegarLoop]: Abstraction has has 91 places, 101 transitions, 484 flow [2022-01-18 22:29:40,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.2) internal successors, (266), 5 states have internal predecessors, (266), 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) [2022-01-18 22:29:40,750 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:29:40,750 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:29:40,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-18 22:29:40,750 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 22:29:40,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:29:40,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1324378714, now seen corresponding path program 2 times [2022-01-18 22:29:40,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:29:40,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759299174] [2022-01-18 22:29:40,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:29:40,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:29:40,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:29:40,784 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-18 22:29:40,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:29:40,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759299174] [2022-01-18 22:29:40,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759299174] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:29:40,785 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:29:40,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 22:29:40,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211385317] [2022-01-18 22:29:40,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:29:40,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 22:29:40,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:29:40,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 22:29:40,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 22:29:40,786 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 75 [2022-01-18 22:29:40,786 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 101 transitions, 484 flow. Second operand has 5 states, 5 states have (on average 53.2) internal successors, (266), 5 states have internal predecessors, (266), 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) [2022-01-18 22:29:40,786 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:29:40,787 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 75 [2022-01-18 22:29:40,787 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:29:41,430 INFO L129 PetriNetUnfolder]: 3687/7430 cut-off events. [2022-01-18 22:29:41,430 INFO L130 PetriNetUnfolder]: For 10210/10252 co-relation queries the response was YES. [2022-01-18 22:29:41,469 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22549 conditions, 7430 events. 3687/7430 cut-off events. For 10210/10252 co-relation queries the response was YES. Maximal size of possible extension queue 486. Compared 64662 event pairs, 894 based on Foata normal form. 90/6553 useless extension candidates. Maximal degree in co-relation 12426. Up to 1800 conditions per place. [2022-01-18 22:29:41,517 INFO L132 encePairwiseOnDemand]: 65/75 looper letters, 73 selfloop transitions, 35 changer transitions 0/154 dead transitions. [2022-01-18 22:29:41,517 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 154 transitions, 993 flow [2022-01-18 22:29:41,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 22:29:41,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-18 22:29:41,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 384 transitions. [2022-01-18 22:29:41,518 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8533333333333334 [2022-01-18 22:29:41,518 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 384 transitions. [2022-01-18 22:29:41,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 384 transitions. [2022-01-18 22:29:41,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:29:41,519 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 384 transitions. [2022-01-18 22:29:41,519 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 64.0) internal successors, (384), 6 states have internal predecessors, (384), 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) [2022-01-18 22:29:41,520 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 75.0) internal successors, (525), 7 states have internal predecessors, (525), 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) [2022-01-18 22:29:41,520 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 75.0) internal successors, (525), 7 states have internal predecessors, (525), 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) [2022-01-18 22:29:41,520 INFO L186 Difference]: Start difference. First operand has 91 places, 101 transitions, 484 flow. Second operand 6 states and 384 transitions. [2022-01-18 22:29:41,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 154 transitions, 993 flow [2022-01-18 22:29:41,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 154 transitions, 989 flow, removed 2 selfloop flow, removed 0 redundant places. [2022-01-18 22:29:41,543 INFO L242 Difference]: Finished difference. Result has 100 places, 114 transitions, 745 flow [2022-01-18 22:29:41,543 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=480, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=745, PETRI_PLACES=100, PETRI_TRANSITIONS=114} [2022-01-18 22:29:41,544 INFO L334 CegarLoopForPetriNet]: 83 programPoint places, 17 predicate places. [2022-01-18 22:29:41,544 INFO L470 AbstractCegarLoop]: Abstraction has has 100 places, 114 transitions, 745 flow [2022-01-18 22:29:41,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.2) internal successors, (266), 5 states have internal predecessors, (266), 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) [2022-01-18 22:29:41,544 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:29:41,544 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:29:41,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-18 22:29:41,544 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 22:29:41,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:29:41,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1405795873, now seen corresponding path program 1 times [2022-01-18 22:29:41,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:29:41,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722807955] [2022-01-18 22:29:41,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:29:41,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:29:41,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:29:41,569 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-18 22:29:41,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:29:41,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722807955] [2022-01-18 22:29:41,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722807955] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:29:41,570 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:29:41,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 22:29:41,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662412790] [2022-01-18 22:29:41,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:29:41,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 22:29:41,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:29:41,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 22:29:41,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 22:29:41,571 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 75 [2022-01-18 22:29:41,571 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 114 transitions, 745 flow. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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) [2022-01-18 22:29:41,571 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:29:41,571 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 75 [2022-01-18 22:29:41,571 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:29:42,298 INFO L129 PetriNetUnfolder]: 4582/9914 cut-off events. [2022-01-18 22:29:42,298 INFO L130 PetriNetUnfolder]: For 32331/33067 co-relation queries the response was YES. [2022-01-18 22:29:42,343 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34614 conditions, 9914 events. 4582/9914 cut-off events. For 32331/33067 co-relation queries the response was YES. Maximal size of possible extension queue 714. Compared 97925 event pairs, 1950 based on Foata normal form. 96/8902 useless extension candidates. Maximal degree in co-relation 34536. Up to 5307 conditions per place. [2022-01-18 22:29:42,404 INFO L132 encePairwiseOnDemand]: 69/75 looper letters, 72 selfloop transitions, 34 changer transitions 0/157 dead transitions. [2022-01-18 22:29:42,404 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 157 transitions, 1392 flow [2022-01-18 22:29:42,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 22:29:42,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-18 22:29:42,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 191 transitions. [2022-01-18 22:29:42,405 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8488888888888889 [2022-01-18 22:29:42,405 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 191 transitions. [2022-01-18 22:29:42,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 191 transitions. [2022-01-18 22:29:42,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:29:42,406 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 191 transitions. [2022-01-18 22:29:42,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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) [2022-01-18 22:29:42,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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) [2022-01-18 22:29:42,407 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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) [2022-01-18 22:29:42,407 INFO L186 Difference]: Start difference. First operand has 100 places, 114 transitions, 745 flow. Second operand 3 states and 191 transitions. [2022-01-18 22:29:42,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 157 transitions, 1392 flow [2022-01-18 22:29:42,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 157 transitions, 1368 flow, removed 12 selfloop flow, removed 0 redundant places. [2022-01-18 22:29:42,465 INFO L242 Difference]: Finished difference. Result has 104 places, 136 transitions, 1163 flow [2022-01-18 22:29:42,465 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=733, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1163, PETRI_PLACES=104, PETRI_TRANSITIONS=136} [2022-01-18 22:29:42,466 INFO L334 CegarLoopForPetriNet]: 83 programPoint places, 21 predicate places. [2022-01-18 22:29:42,466 INFO L470 AbstractCegarLoop]: Abstraction has has 104 places, 136 transitions, 1163 flow [2022-01-18 22:29:42,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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) [2022-01-18 22:29:42,466 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:29:42,467 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:29:42,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-18 22:29:42,467 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 22:29:42,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:29:42,467 INFO L85 PathProgramCache]: Analyzing trace with hash -399567784, now seen corresponding path program 1 times [2022-01-18 22:29:42,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:29:42,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059133055] [2022-01-18 22:29:42,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:29:42,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:29:42,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:29:42,514 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-18 22:29:42,514 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:29:42,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059133055] [2022-01-18 22:29:42,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059133055] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:29:42,515 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:29:42,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 22:29:42,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154587372] [2022-01-18 22:29:42,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:29:42,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 22:29:42,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:29:42,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 22:29:42,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 22:29:42,518 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 75 [2022-01-18 22:29:42,518 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 136 transitions, 1163 flow. Second operand has 5 states, 5 states have (on average 53.4) internal successors, (267), 5 states have internal predecessors, (267), 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) [2022-01-18 22:29:42,518 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:29:42,518 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 75 [2022-01-18 22:29:42,518 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:29:44,078 INFO L129 PetriNetUnfolder]: 7882/17707 cut-off events. [2022-01-18 22:29:44,079 INFO L130 PetriNetUnfolder]: For 77919/130461 co-relation queries the response was YES. [2022-01-18 22:29:44,199 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66790 conditions, 17707 events. 7882/17707 cut-off events. For 77919/130461 co-relation queries the response was YES. Maximal size of possible extension queue 1150. Compared 192259 event pairs, 1768 based on Foata normal form. 698/16886 useless extension candidates. Maximal degree in co-relation 66692. Up to 4126 conditions per place. [2022-01-18 22:29:44,301 INFO L132 encePairwiseOnDemand]: 65/75 looper letters, 133 selfloop transitions, 113 changer transitions 0/294 dead transitions. [2022-01-18 22:29:44,301 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 294 transitions, 3422 flow [2022-01-18 22:29:44,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 22:29:44,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-18 22:29:44,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 438 transitions. [2022-01-18 22:29:44,302 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8342857142857143 [2022-01-18 22:29:44,302 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 438 transitions. [2022-01-18 22:29:44,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 438 transitions. [2022-01-18 22:29:44,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:29:44,303 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 438 transitions. [2022-01-18 22:29:44,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 62.57142857142857) internal successors, (438), 7 states have internal predecessors, (438), 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) [2022-01-18 22:29:44,305 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 75.0) internal successors, (600), 8 states have internal predecessors, (600), 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) [2022-01-18 22:29:44,306 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 75.0) internal successors, (600), 8 states have internal predecessors, (600), 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) [2022-01-18 22:29:44,306 INFO L186 Difference]: Start difference. First operand has 104 places, 136 transitions, 1163 flow. Second operand 7 states and 438 transitions. [2022-01-18 22:29:44,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 294 transitions, 3422 flow [2022-01-18 22:29:44,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 294 transitions, 3266 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-01-18 22:29:44,506 INFO L242 Difference]: Finished difference. Result has 112 places, 225 transitions, 2725 flow [2022-01-18 22:29:44,506 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=1095, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2725, PETRI_PLACES=112, PETRI_TRANSITIONS=225} [2022-01-18 22:29:44,506 INFO L334 CegarLoopForPetriNet]: 83 programPoint places, 29 predicate places. [2022-01-18 22:29:44,506 INFO L470 AbstractCegarLoop]: Abstraction has has 112 places, 225 transitions, 2725 flow [2022-01-18 22:29:44,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.4) internal successors, (267), 5 states have internal predecessors, (267), 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) [2022-01-18 22:29:44,507 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:29:44,507 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:29:44,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-18 22:29:44,507 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 22:29:44,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:29:44,507 INFO L85 PathProgramCache]: Analyzing trace with hash -889159118, now seen corresponding path program 2 times [2022-01-18 22:29:44,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:29:44,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386840918] [2022-01-18 22:29:44,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:29:44,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:29:44,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:29:44,532 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-18 22:29:44,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:29:44,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386840918] [2022-01-18 22:29:44,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386840918] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:29:44,532 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:29:44,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 22:29:44,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301456617] [2022-01-18 22:29:44,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:29:44,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 22:29:44,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:29:44,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 22:29:44,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 22:29:44,534 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 75 [2022-01-18 22:29:44,534 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 225 transitions, 2725 flow. Second operand has 5 states, 5 states have (on average 53.4) internal successors, (267), 5 states have internal predecessors, (267), 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) [2022-01-18 22:29:44,534 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:29:44,534 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 75 [2022-01-18 22:29:44,534 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:29:46,350 INFO L129 PetriNetUnfolder]: 7684/17580 cut-off events. [2022-01-18 22:29:46,350 INFO L130 PetriNetUnfolder]: For 88851/92800 co-relation queries the response was YES. [2022-01-18 22:29:46,423 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73906 conditions, 17580 events. 7684/17580 cut-off events. For 88851/92800 co-relation queries the response was YES. Maximal size of possible extension queue 1240. Compared 193832 event pairs, 1584 based on Foata normal form. 370/16564 useless extension candidates. Maximal degree in co-relation 73802. Up to 4041 conditions per place. [2022-01-18 22:29:46,600 INFO L132 encePairwiseOnDemand]: 65/75 looper letters, 122 selfloop transitions, 140 changer transitions 0/310 dead transitions. [2022-01-18 22:29:46,601 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 310 transitions, 4160 flow [2022-01-18 22:29:46,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 22:29:46,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-18 22:29:46,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 381 transitions. [2022-01-18 22:29:46,602 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8466666666666667 [2022-01-18 22:29:46,602 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 381 transitions. [2022-01-18 22:29:46,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 381 transitions. [2022-01-18 22:29:46,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:29:46,603 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 381 transitions. [2022-01-18 22:29:46,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 63.5) internal successors, (381), 6 states have internal predecessors, (381), 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) [2022-01-18 22:29:46,606 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 75.0) internal successors, (525), 7 states have internal predecessors, (525), 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) [2022-01-18 22:29:46,607 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 75.0) internal successors, (525), 7 states have internal predecessors, (525), 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) [2022-01-18 22:29:46,607 INFO L186 Difference]: Start difference. First operand has 112 places, 225 transitions, 2725 flow. Second operand 6 states and 381 transitions. [2022-01-18 22:29:46,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 310 transitions, 4160 flow [2022-01-18 22:29:46,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 310 transitions, 4144 flow, removed 8 selfloop flow, removed 0 redundant places. [2022-01-18 22:29:46,896 INFO L242 Difference]: Finished difference. Result has 121 places, 261 transitions, 3846 flow [2022-01-18 22:29:46,897 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=2709, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=105, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3846, PETRI_PLACES=121, PETRI_TRANSITIONS=261} [2022-01-18 22:29:46,897 INFO L334 CegarLoopForPetriNet]: 83 programPoint places, 38 predicate places. [2022-01-18 22:29:46,897 INFO L470 AbstractCegarLoop]: Abstraction has has 121 places, 261 transitions, 3846 flow [2022-01-18 22:29:46,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.4) internal successors, (267), 5 states have internal predecessors, (267), 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) [2022-01-18 22:29:46,898 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:29:46,898 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:29:46,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-18 22:29:46,898 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 22:29:46,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:29:46,898 INFO L85 PathProgramCache]: Analyzing trace with hash 429602850, now seen corresponding path program 1 times [2022-01-18 22:29:46,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:29:46,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381910413] [2022-01-18 22:29:46,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:29:46,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:29:46,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:29:46,923 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-18 22:29:46,923 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:29:46,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381910413] [2022-01-18 22:29:46,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381910413] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:29:46,923 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:29:46,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 22:29:46,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058606965] [2022-01-18 22:29:46,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:29:46,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 22:29:46,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:29:46,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 22:29:46,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 22:29:46,924 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 75 [2022-01-18 22:29:46,925 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 261 transitions, 3846 flow. Second operand has 5 states, 5 states have (on average 53.4) internal successors, (267), 5 states have internal predecessors, (267), 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) [2022-01-18 22:29:46,925 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:29:46,925 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 75 [2022-01-18 22:29:46,925 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:29:49,827 INFO L129 PetriNetUnfolder]: 11080/25867 cut-off events. [2022-01-18 22:29:49,828 INFO L130 PetriNetUnfolder]: For 175792/176041 co-relation queries the response was YES. [2022-01-18 22:29:50,026 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121436 conditions, 25867 events. 11080/25867 cut-off events. For 175792/176041 co-relation queries the response was YES. Maximal size of possible extension queue 1971. Compared 306678 event pairs, 1849 based on Foata normal form. 236/24162 useless extension candidates. Maximal degree in co-relation 121343. Up to 6382 conditions per place. [2022-01-18 22:29:50,183 INFO L132 encePairwiseOnDemand]: 65/75 looper letters, 227 selfloop transitions, 195 changer transitions 0/471 dead transitions. [2022-01-18 22:29:50,183 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 471 transitions, 7720 flow [2022-01-18 22:29:50,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 22:29:50,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-18 22:29:50,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 436 transitions. [2022-01-18 22:29:50,185 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8304761904761905 [2022-01-18 22:29:50,185 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 436 transitions. [2022-01-18 22:29:50,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 436 transitions. [2022-01-18 22:29:50,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:29:50,185 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 436 transitions. [2022-01-18 22:29:50,186 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 62.285714285714285) internal successors, (436), 7 states have internal predecessors, (436), 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) [2022-01-18 22:29:50,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 75.0) internal successors, (600), 8 states have internal predecessors, (600), 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) [2022-01-18 22:29:50,187 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 75.0) internal successors, (600), 8 states have internal predecessors, (600), 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) [2022-01-18 22:29:50,187 INFO L186 Difference]: Start difference. First operand has 121 places, 261 transitions, 3846 flow. Second operand 7 states and 436 transitions. [2022-01-18 22:29:50,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 471 transitions, 7720 flow [2022-01-18 22:29:51,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 471 transitions, 7656 flow, removed 32 selfloop flow, removed 0 redundant places. [2022-01-18 22:29:51,365 INFO L242 Difference]: Finished difference. Result has 131 places, 388 transitions, 6700 flow [2022-01-18 22:29:51,365 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=3820, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=6700, PETRI_PLACES=131, PETRI_TRANSITIONS=388} [2022-01-18 22:29:51,366 INFO L334 CegarLoopForPetriNet]: 83 programPoint places, 48 predicate places. [2022-01-18 22:29:51,366 INFO L470 AbstractCegarLoop]: Abstraction has has 131 places, 388 transitions, 6700 flow [2022-01-18 22:29:51,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.4) internal successors, (267), 5 states have internal predecessors, (267), 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) [2022-01-18 22:29:51,366 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:29:51,366 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:29:51,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-18 22:29:51,366 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 22:29:51,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:29:51,367 INFO L85 PathProgramCache]: Analyzing trace with hash -21483038, now seen corresponding path program 2 times [2022-01-18 22:29:51,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:29:51,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344141807] [2022-01-18 22:29:51,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:29:51,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:29:51,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:29:51,399 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-18 22:29:51,399 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:29:51,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344141807] [2022-01-18 22:29:51,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344141807] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:29:51,399 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:29:51,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 22:29:51,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970755665] [2022-01-18 22:29:51,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:29:51,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 22:29:51,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:29:51,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 22:29:51,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 22:29:51,401 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 75 [2022-01-18 22:29:51,401 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 388 transitions, 6700 flow. Second operand has 5 states, 5 states have (on average 53.4) internal successors, (267), 5 states have internal predecessors, (267), 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) [2022-01-18 22:29:51,401 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:29:51,401 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 75 [2022-01-18 22:29:51,401 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:29:54,861 INFO L129 PetriNetUnfolder]: 10904/26440 cut-off events. [2022-01-18 22:29:54,861 INFO L130 PetriNetUnfolder]: For 223788/223867 co-relation queries the response was YES. [2022-01-18 22:29:55,015 INFO L84 FinitePrefix]: Finished finitePrefix Result has 135081 conditions, 26440 events. 10904/26440 cut-off events. For 223788/223867 co-relation queries the response was YES. Maximal size of possible extension queue 2149. Compared 322869 event pairs, 2117 based on Foata normal form. 236/24630 useless extension candidates. Maximal degree in co-relation 134983. Up to 5758 conditions per place. [2022-01-18 22:29:55,160 INFO L132 encePairwiseOnDemand]: 65/75 looper letters, 241 selfloop transitions, 225 changer transitions 0/515 dead transitions. [2022-01-18 22:29:55,161 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 515 transitions, 9548 flow [2022-01-18 22:29:55,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 22:29:55,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-18 22:29:55,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 378 transitions. [2022-01-18 22:29:55,169 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.84 [2022-01-18 22:29:55,169 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 378 transitions. [2022-01-18 22:29:55,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 378 transitions. [2022-01-18 22:29:55,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:29:55,170 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 378 transitions. [2022-01-18 22:29:55,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 63.0) internal successors, (378), 6 states have internal predecessors, (378), 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) [2022-01-18 22:29:55,171 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 75.0) internal successors, (525), 7 states have internal predecessors, (525), 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) [2022-01-18 22:29:55,171 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 75.0) internal successors, (525), 7 states have internal predecessors, (525), 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) [2022-01-18 22:29:55,171 INFO L186 Difference]: Start difference. First operand has 131 places, 388 transitions, 6700 flow. Second operand 6 states and 378 transitions. [2022-01-18 22:29:55,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 515 transitions, 9548 flow [2022-01-18 22:29:56,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 515 transitions, 9536 flow, removed 6 selfloop flow, removed 0 redundant places. [2022-01-18 22:29:56,502 INFO L242 Difference]: Finished difference. Result has 140 places, 447 transitions, 8716 flow [2022-01-18 22:29:56,502 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=6688, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=388, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=171, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=8716, PETRI_PLACES=140, PETRI_TRANSITIONS=447} [2022-01-18 22:29:56,503 INFO L334 CegarLoopForPetriNet]: 83 programPoint places, 57 predicate places. [2022-01-18 22:29:56,503 INFO L470 AbstractCegarLoop]: Abstraction has has 140 places, 447 transitions, 8716 flow [2022-01-18 22:29:56,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.4) internal successors, (267), 5 states have internal predecessors, (267), 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) [2022-01-18 22:29:56,503 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:29:56,503 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:29:56,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-18 22:29:56,504 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 22:29:56,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:29:56,504 INFO L85 PathProgramCache]: Analyzing trace with hash -791742585, now seen corresponding path program 1 times [2022-01-18 22:29:56,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:29:56,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392261360] [2022-01-18 22:29:56,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:29:56,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:29:56,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 22:29:56,511 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-18 22:29:56,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 22:29:56,518 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-18 22:29:56,518 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-18 22:29:56,519 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (5 of 6 remaining) [2022-01-18 22:29:56,519 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-01-18 22:29:56,519 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2022-01-18 22:29:56,519 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2022-01-18 22:29:56,519 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2022-01-18 22:29:56,519 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-01-18 22:29:56,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-18 22:29:56,519 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1] [2022-01-18 22:29:56,520 WARN L235 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-18 22:29:56,520 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2022-01-18 22:29:56,527 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,527 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,527 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,527 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,527 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,528 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,528 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,528 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,528 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,528 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,528 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,528 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,528 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,528 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,528 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,528 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,528 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,528 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,528 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,529 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,529 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,529 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,529 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,529 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,529 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,529 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,529 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,529 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,529 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,529 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,529 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,529 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,530 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,530 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,530 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,530 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,530 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,530 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,530 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,530 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,530 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,530 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,530 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,530 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,530 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,530 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,530 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,531 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,531 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,531 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,531 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,531 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,531 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,531 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,531 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,531 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,531 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,531 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,531 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,531 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,531 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,532 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,532 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,532 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,532 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,532 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,532 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,532 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,532 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,532 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,532 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,532 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,532 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,532 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,532 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,533 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,533 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,533 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,533 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,533 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,533 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,533 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,533 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,533 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,533 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,533 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,533 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,533 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,534 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,534 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,534 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,534 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,534 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,534 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,534 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,534 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,534 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,534 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,534 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,534 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,534 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,534 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,535 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,535 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,535 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,535 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,535 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,535 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,535 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,535 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,535 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,535 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,535 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,535 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,535 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,535 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,536 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,536 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,536 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,536 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,536 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,536 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,536 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,536 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,536 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,536 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,536 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,536 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,536 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,536 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,537 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,537 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,537 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,537 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,537 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,537 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,537 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,537 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,537 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,537 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,538 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,538 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,538 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,538 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,538 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,538 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,538 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,538 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,538 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,538 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,538 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,539 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,539 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,539 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,539 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,539 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,539 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,539 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,540 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,540 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,540 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,540 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,540 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,540 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,540 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,540 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,540 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,540 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,540 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,540 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 22:29:56,541 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-18 22:29:56,541 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 22:29:56,542 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 22:29:56,542 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-01-18 22:29:56,542 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 86 transitions, 217 flow [2022-01-18 22:29:56,548 INFO L129 PetriNetUnfolder]: 6/149 cut-off events. [2022-01-18 22:29:56,549 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2022-01-18 22:29:56,549 INFO L84 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 149 events. 6/149 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 266 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 138. Up to 12 conditions per place. [2022-01-18 22:29:56,549 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 86 transitions, 217 flow [2022-01-18 22:29:56,550 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 86 transitions, 217 flow [2022-01-18 22:29:56,551 INFO L129 PetriNetUnfolder]: 2/46 cut-off events. [2022-01-18 22:29:56,551 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-01-18 22:29:56,551 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:29:56,551 INFO L254 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] [2022-01-18 22:29:56,551 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-18 22:29:56,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:29:56,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1615531528, now seen corresponding path program 1 times [2022-01-18 22:29:56,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:29:56,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562372283] [2022-01-18 22:29:56,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:29:56,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:29:56,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:29:56,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 22:29:56,563 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:29:56,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562372283] [2022-01-18 22:29:56,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562372283] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:29:56,563 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:29:56,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 22:29:56,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971151833] [2022-01-18 22:29:56,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:29:56,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 22:29:56,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:29:56,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 22:29:56,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 22:29:56,564 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 86 [2022-01-18 22:29:56,564 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 86 transitions, 217 flow. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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) [2022-01-18 22:29:56,564 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:29:56,564 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 86 [2022-01-18 22:29:56,565 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:29:57,440 INFO L129 PetriNetUnfolder]: 7474/12642 cut-off events. [2022-01-18 22:29:57,440 INFO L130 PetriNetUnfolder]: For 9085/9085 co-relation queries the response was YES. [2022-01-18 22:29:57,468 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26655 conditions, 12642 events. 7474/12642 cut-off events. For 9085/9085 co-relation queries the response was YES. Maximal size of possible extension queue 757. Compared 100629 event pairs, 5008 based on Foata normal form. 2714/12500 useless extension candidates. Maximal degree in co-relation 17174. Up to 7750 conditions per place. [2022-01-18 22:29:57,523 INFO L132 encePairwiseOnDemand]: 77/86 looper letters, 35 selfloop transitions, 6 changer transitions 0/96 dead transitions. [2022-01-18 22:29:57,524 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 96 transitions, 351 flow [2022-01-18 22:29:57,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 22:29:57,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-18 22:29:57,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 226 transitions. [2022-01-18 22:29:57,525 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.875968992248062 [2022-01-18 22:29:57,525 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 226 transitions. [2022-01-18 22:29:57,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 226 transitions. [2022-01-18 22:29:57,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:29:57,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 226 transitions. [2022-01-18 22:29:57,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2022-01-18 22:29:57,526 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 86.0) internal successors, (344), 4 states have internal predecessors, (344), 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) [2022-01-18 22:29:57,526 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 86.0) internal successors, (344), 4 states have internal predecessors, (344), 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) [2022-01-18 22:29:57,526 INFO L186 Difference]: Start difference. First operand has 96 places, 86 transitions, 217 flow. Second operand 3 states and 226 transitions. [2022-01-18 22:29:57,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 96 transitions, 351 flow [2022-01-18 22:29:57,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 96 transitions, 319 flow, removed 16 selfloop flow, removed 0 redundant places. [2022-01-18 22:29:57,529 INFO L242 Difference]: Finished difference. Result has 94 places, 84 transitions, 229 flow [2022-01-18 22:29:57,529 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=229, PETRI_PLACES=94, PETRI_TRANSITIONS=84} [2022-01-18 22:29:57,529 INFO L334 CegarLoopForPetriNet]: 96 programPoint places, -2 predicate places. [2022-01-18 22:29:57,529 INFO L470 AbstractCegarLoop]: Abstraction has has 94 places, 84 transitions, 229 flow [2022-01-18 22:29:57,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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) [2022-01-18 22:29:57,530 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:29:57,530 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:29:57,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-18 22:29:57,530 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-18 22:29:57,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:29:57,530 INFO L85 PathProgramCache]: Analyzing trace with hash -275840951, now seen corresponding path program 1 times [2022-01-18 22:29:57,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:29:57,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378683769] [2022-01-18 22:29:57,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:29:57,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:29:57,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:29:57,542 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-18 22:29:57,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:29:57,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378683769] [2022-01-18 22:29:57,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378683769] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:29:57,542 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:29:57,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 22:29:57,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278572403] [2022-01-18 22:29:57,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:29:57,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 22:29:57,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:29:57,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 22:29:57,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 22:29:57,543 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 86 [2022-01-18 22:29:57,544 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 84 transitions, 229 flow. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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) [2022-01-18 22:29:57,544 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:29:57,544 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 86 [2022-01-18 22:29:57,544 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:29:58,848 INFO L129 PetriNetUnfolder]: 10409/18022 cut-off events. [2022-01-18 22:29:58,848 INFO L130 PetriNetUnfolder]: For 11040/11040 co-relation queries the response was YES. [2022-01-18 22:29:58,894 INFO L84 FinitePrefix]: Finished finitePrefix Result has 43118 conditions, 18022 events. 10409/18022 cut-off events. For 11040/11040 co-relation queries the response was YES. Maximal size of possible extension queue 1055. Compared 154362 event pairs, 5778 based on Foata normal form. 0/14837 useless extension candidates. Maximal degree in co-relation 43052. Up to 10999 conditions per place. [2022-01-18 22:29:58,982 INFO L132 encePairwiseOnDemand]: 79/86 looper letters, 39 selfloop transitions, 10 changer transitions 0/104 dead transitions. [2022-01-18 22:29:58,983 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 104 transitions, 412 flow [2022-01-18 22:29:58,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 22:29:58,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-18 22:29:58,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 221 transitions. [2022-01-18 22:29:58,984 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8565891472868217 [2022-01-18 22:29:58,984 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 221 transitions. [2022-01-18 22:29:58,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 221 transitions. [2022-01-18 22:29:58,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:29:58,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 221 transitions. [2022-01-18 22:29:58,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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) [2022-01-18 22:29:58,985 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 86.0) internal successors, (344), 4 states have internal predecessors, (344), 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) [2022-01-18 22:29:58,985 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 86.0) internal successors, (344), 4 states have internal predecessors, (344), 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) [2022-01-18 22:29:58,985 INFO L186 Difference]: Start difference. First operand has 94 places, 84 transitions, 229 flow. Second operand 3 states and 221 transitions. [2022-01-18 22:29:58,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 104 transitions, 412 flow [2022-01-18 22:29:59,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 104 transitions, 390 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-01-18 22:29:59,016 INFO L242 Difference]: Finished difference. Result has 96 places, 92 transitions, 305 flow [2022-01-18 22:29:59,016 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=305, PETRI_PLACES=96, PETRI_TRANSITIONS=92} [2022-01-18 22:29:59,016 INFO L334 CegarLoopForPetriNet]: 96 programPoint places, 0 predicate places. [2022-01-18 22:29:59,016 INFO L470 AbstractCegarLoop]: Abstraction has has 96 places, 92 transitions, 305 flow [2022-01-18 22:29:59,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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) [2022-01-18 22:29:59,017 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:29:59,017 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:29:59,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-18 22:29:59,017 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-18 22:29:59,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:29:59,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1502870282, now seen corresponding path program 1 times [2022-01-18 22:29:59,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:29:59,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401183165] [2022-01-18 22:29:59,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:29:59,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:29:59,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:29:59,050 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-18 22:29:59,050 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:29:59,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401183165] [2022-01-18 22:29:59,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401183165] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:29:59,051 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:29:59,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 22:29:59,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156412320] [2022-01-18 22:29:59,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:29:59,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 22:29:59,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:29:59,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 22:29:59,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 22:29:59,064 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 86 [2022-01-18 22:29:59,064 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 92 transitions, 305 flow. Second operand has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 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) [2022-01-18 22:29:59,064 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:29:59,064 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 86 [2022-01-18 22:29:59,064 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:30:01,479 INFO L129 PetriNetUnfolder]: 21834/36235 cut-off events. [2022-01-18 22:30:01,479 INFO L130 PetriNetUnfolder]: For 27039/27039 co-relation queries the response was YES. [2022-01-18 22:30:01,664 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98544 conditions, 36235 events. 21834/36235 cut-off events. For 27039/27039 co-relation queries the response was YES. Maximal size of possible extension queue 1931. Compared 321178 event pairs, 3234 based on Foata normal form. 170/29762 useless extension candidates. Maximal degree in co-relation 98462. Up to 10933 conditions per place. [2022-01-18 22:30:01,892 INFO L132 encePairwiseOnDemand]: 75/86 looper letters, 96 selfloop transitions, 35 changer transitions 0/184 dead transitions. [2022-01-18 22:30:01,892 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 184 transitions, 1001 flow [2022-01-18 22:30:01,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 22:30:01,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-18 22:30:01,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 517 transitions. [2022-01-18 22:30:01,894 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8588039867109635 [2022-01-18 22:30:01,894 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 517 transitions. [2022-01-18 22:30:01,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 517 transitions. [2022-01-18 22:30:01,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:30:01,894 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 517 transitions. [2022-01-18 22:30:01,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 73.85714285714286) internal successors, (517), 7 states have internal predecessors, (517), 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) [2022-01-18 22:30:01,896 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 86.0) internal successors, (688), 8 states have internal predecessors, (688), 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) [2022-01-18 22:30:01,896 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 86.0) internal successors, (688), 8 states have internal predecessors, (688), 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) [2022-01-18 22:30:01,896 INFO L186 Difference]: Start difference. First operand has 96 places, 92 transitions, 305 flow. Second operand 7 states and 517 transitions. [2022-01-18 22:30:01,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 184 transitions, 1001 flow [2022-01-18 22:30:02,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 184 transitions, 949 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-01-18 22:30:02,128 INFO L242 Difference]: Finished difference. Result has 104 places, 119 transitions, 581 flow [2022-01-18 22:30:02,128 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=285, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=581, PETRI_PLACES=104, PETRI_TRANSITIONS=119} [2022-01-18 22:30:02,128 INFO L334 CegarLoopForPetriNet]: 96 programPoint places, 8 predicate places. [2022-01-18 22:30:02,128 INFO L470 AbstractCegarLoop]: Abstraction has has 104 places, 119 transitions, 581 flow [2022-01-18 22:30:02,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 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) [2022-01-18 22:30:02,129 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:30:02,129 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:30:02,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-18 22:30:02,129 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-18 22:30:02,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:30:02,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1097776560, now seen corresponding path program 2 times [2022-01-18 22:30:02,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:30:02,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164526684] [2022-01-18 22:30:02,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:30:02,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:30:02,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:30:02,164 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-18 22:30:02,165 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:30:02,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164526684] [2022-01-18 22:30:02,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164526684] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:30:02,165 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:30:02,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 22:30:02,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241766263] [2022-01-18 22:30:02,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:30:02,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 22:30:02,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:30:02,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 22:30:02,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 22:30:02,166 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 86 [2022-01-18 22:30:02,167 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 119 transitions, 581 flow. Second operand has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 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) [2022-01-18 22:30:02,167 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:30:02,167 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 86 [2022-01-18 22:30:02,167 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:30:05,127 INFO L129 PetriNetUnfolder]: 22143/38292 cut-off events. [2022-01-18 22:30:05,127 INFO L130 PetriNetUnfolder]: For 53053/53137 co-relation queries the response was YES. [2022-01-18 22:30:05,344 INFO L84 FinitePrefix]: Finished finitePrefix Result has 116107 conditions, 38292 events. 22143/38292 cut-off events. For 53053/53137 co-relation queries the response was YES. Maximal size of possible extension queue 2093. Compared 357213 event pairs, 5832 based on Foata normal form. 349/32668 useless extension candidates. Maximal degree in co-relation 67762. Up to 10158 conditions per place. [2022-01-18 22:30:05,586 INFO L132 encePairwiseOnDemand]: 75/86 looper letters, 94 selfloop transitions, 43 changer transitions 0/190 dead transitions. [2022-01-18 22:30:05,586 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 190 transitions, 1240 flow [2022-01-18 22:30:05,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 22:30:05,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-18 22:30:05,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 446 transitions. [2022-01-18 22:30:05,587 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8643410852713178 [2022-01-18 22:30:05,587 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 446 transitions. [2022-01-18 22:30:05,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 446 transitions. [2022-01-18 22:30:05,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:30:05,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 446 transitions. [2022-01-18 22:30:05,589 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 74.33333333333333) internal successors, (446), 6 states have internal predecessors, (446), 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) [2022-01-18 22:30:05,589 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 86.0) internal successors, (602), 7 states have internal predecessors, (602), 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) [2022-01-18 22:30:05,589 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 86.0) internal successors, (602), 7 states have internal predecessors, (602), 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) [2022-01-18 22:30:05,590 INFO L186 Difference]: Start difference. First operand has 104 places, 119 transitions, 581 flow. Second operand 6 states and 446 transitions. [2022-01-18 22:30:05,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 190 transitions, 1240 flow [2022-01-18 22:30:05,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 190 transitions, 1234 flow, removed 3 selfloop flow, removed 0 redundant places. [2022-01-18 22:30:05,746 INFO L242 Difference]: Finished difference. Result has 113 places, 135 transitions, 902 flow [2022-01-18 22:30:05,746 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=575, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=902, PETRI_PLACES=113, PETRI_TRANSITIONS=135} [2022-01-18 22:30:05,747 INFO L334 CegarLoopForPetriNet]: 96 programPoint places, 17 predicate places. [2022-01-18 22:30:05,747 INFO L470 AbstractCegarLoop]: Abstraction has has 113 places, 135 transitions, 902 flow [2022-01-18 22:30:05,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 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) [2022-01-18 22:30:05,747 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:30:05,747 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:30:05,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-18 22:30:05,748 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-18 22:30:05,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:30:05,748 INFO L85 PathProgramCache]: Analyzing trace with hash 2018012865, now seen corresponding path program 1 times [2022-01-18 22:30:05,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:30:05,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355822541] [2022-01-18 22:30:05,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:30:05,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:30:05,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:30:05,768 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-18 22:30:05,768 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:30:05,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355822541] [2022-01-18 22:30:05,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355822541] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:30:05,768 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:30:05,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 22:30:05,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615932375] [2022-01-18 22:30:05,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:30:05,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 22:30:05,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:30:05,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 22:30:05,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 22:30:05,770 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 86 [2022-01-18 22:30:05,770 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 135 transitions, 902 flow. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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) [2022-01-18 22:30:05,770 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:30:05,770 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 86 [2022-01-18 22:30:05,770 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:30:10,510 INFO L129 PetriNetUnfolder]: 31761/57095 cut-off events. [2022-01-18 22:30:10,511 INFO L130 PetriNetUnfolder]: For 196416/200546 co-relation queries the response was YES. [2022-01-18 22:30:10,879 INFO L84 FinitePrefix]: Finished finitePrefix Result has 199148 conditions, 57095 events. 31761/57095 cut-off events. For 196416/200546 co-relation queries the response was YES. Maximal size of possible extension queue 3391. Compared 592857 event pairs, 14416 based on Foata normal form. 510/49462 useless extension candidates. Maximal degree in co-relation 199069. Up to 34159 conditions per place. [2022-01-18 22:30:11,249 INFO L132 encePairwiseOnDemand]: 79/86 looper letters, 90 selfloop transitions, 45 changer transitions 0/193 dead transitions. [2022-01-18 22:30:11,249 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 193 transitions, 1764 flow [2022-01-18 22:30:11,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 22:30:11,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-18 22:30:11,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 220 transitions. [2022-01-18 22:30:11,250 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8527131782945736 [2022-01-18 22:30:11,250 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 220 transitions. [2022-01-18 22:30:11,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 220 transitions. [2022-01-18 22:30:11,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:30:11,251 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 220 transitions. [2022-01-18 22:30:11,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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) [2022-01-18 22:30:11,251 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 86.0) internal successors, (344), 4 states have internal predecessors, (344), 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) [2022-01-18 22:30:11,252 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 86.0) internal successors, (344), 4 states have internal predecessors, (344), 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) [2022-01-18 22:30:11,252 INFO L186 Difference]: Start difference. First operand has 113 places, 135 transitions, 902 flow. Second operand 3 states and 220 transitions. [2022-01-18 22:30:11,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 193 transitions, 1764 flow [2022-01-18 22:30:12,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 193 transitions, 1740 flow, removed 12 selfloop flow, removed 0 redundant places. [2022-01-18 22:30:12,092 INFO L242 Difference]: Finished difference. Result has 117 places, 169 transitions, 1534 flow [2022-01-18 22:30:12,092 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=890, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1534, PETRI_PLACES=117, PETRI_TRANSITIONS=169} [2022-01-18 22:30:12,093 INFO L334 CegarLoopForPetriNet]: 96 programPoint places, 21 predicate places. [2022-01-18 22:30:12,093 INFO L470 AbstractCegarLoop]: Abstraction has has 117 places, 169 transitions, 1534 flow [2022-01-18 22:30:12,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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) [2022-01-18 22:30:12,093 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:30:12,093 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:30:12,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-18 22:30:12,093 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-18 22:30:12,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:30:12,094 INFO L85 PathProgramCache]: Analyzing trace with hash 2050136410, now seen corresponding path program 1 times [2022-01-18 22:30:12,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:30:12,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107257303] [2022-01-18 22:30:12,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:30:12,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:30:12,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:30:12,113 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-18 22:30:12,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:30:12,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107257303] [2022-01-18 22:30:12,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107257303] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:30:12,114 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:30:12,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 22:30:12,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439987337] [2022-01-18 22:30:12,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:30:12,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 22:30:12,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:30:12,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 22:30:12,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 22:30:12,115 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 86 [2022-01-18 22:30:12,115 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 169 transitions, 1534 flow. Second operand has 5 states, 5 states have (on average 60.4) internal successors, (302), 5 states have internal predecessors, (302), 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) [2022-01-18 22:30:12,115 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:30:12,115 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 86 [2022-01-18 22:30:12,115 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:30:21,094 INFO L129 PetriNetUnfolder]: 55520/100801 cut-off events. [2022-01-18 22:30:21,094 INFO L130 PetriNetUnfolder]: For 406541/504997 co-relation queries the response was YES. [2022-01-18 22:30:21,801 INFO L84 FinitePrefix]: Finished finitePrefix Result has 385956 conditions, 100801 events. 55520/100801 cut-off events. For 406541/504997 co-relation queries the response was YES. Maximal size of possible extension queue 5421. Compared 1117762 event pairs, 11937 based on Foata normal form. 2453/91455 useless extension candidates. Maximal degree in co-relation 385857. Up to 26560 conditions per place. [2022-01-18 22:30:22,719 INFO L132 encePairwiseOnDemand]: 75/86 looper letters, 170 selfloop transitions, 155 changer transitions 0/380 dead transitions. [2022-01-18 22:30:22,719 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 380 transitions, 4560 flow [2022-01-18 22:30:22,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 22:30:22,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-18 22:30:22,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 511 transitions. [2022-01-18 22:30:22,720 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8488372093023255 [2022-01-18 22:30:22,721 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 511 transitions. [2022-01-18 22:30:22,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 511 transitions. [2022-01-18 22:30:22,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:30:22,721 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 511 transitions. [2022-01-18 22:30:22,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 73.0) internal successors, (511), 7 states have internal predecessors, (511), 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) [2022-01-18 22:30:22,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 86.0) internal successors, (688), 8 states have internal predecessors, (688), 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) [2022-01-18 22:30:22,723 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 86.0) internal successors, (688), 8 states have internal predecessors, (688), 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) [2022-01-18 22:30:22,723 INFO L186 Difference]: Start difference. First operand has 117 places, 169 transitions, 1534 flow. Second operand 7 states and 511 transitions. [2022-01-18 22:30:22,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 380 transitions, 4560 flow [2022-01-18 22:30:26,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 380 transitions, 4354 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-01-18 22:30:26,280 INFO L242 Difference]: Finished difference. Result has 125 places, 285 transitions, 3636 flow [2022-01-18 22:30:26,280 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=1444, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3636, PETRI_PLACES=125, PETRI_TRANSITIONS=285} [2022-01-18 22:30:26,280 INFO L334 CegarLoopForPetriNet]: 96 programPoint places, 29 predicate places. [2022-01-18 22:30:26,281 INFO L470 AbstractCegarLoop]: Abstraction has has 125 places, 285 transitions, 3636 flow [2022-01-18 22:30:26,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.4) internal successors, (302), 5 states have internal predecessors, (302), 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) [2022-01-18 22:30:26,281 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:30:26,281 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:30:26,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-18 22:30:26,281 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-18 22:30:26,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:30:26,282 INFO L85 PathProgramCache]: Analyzing trace with hash 2772984, now seen corresponding path program 2 times [2022-01-18 22:30:26,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:30:26,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948537477] [2022-01-18 22:30:26,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:30:26,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:30:26,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:30:26,359 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-18 22:30:26,360 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:30:26,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948537477] [2022-01-18 22:30:26,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948537477] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:30:26,360 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:30:26,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 22:30:26,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714903359] [2022-01-18 22:30:26,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:30:26,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 22:30:26,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:30:26,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 22:30:26,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 22:30:26,361 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 86 [2022-01-18 22:30:26,362 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 285 transitions, 3636 flow. Second operand has 5 states, 5 states have (on average 60.4) internal successors, (302), 5 states have internal predecessors, (302), 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) [2022-01-18 22:30:26,362 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:30:26,362 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 86 [2022-01-18 22:30:26,362 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:30:37,007 INFO L129 PetriNetUnfolder]: 56022/103403 cut-off events. [2022-01-18 22:30:37,007 INFO L130 PetriNetUnfolder]: For 521285/538930 co-relation queries the response was YES. [2022-01-18 22:30:37,918 INFO L84 FinitePrefix]: Finished finitePrefix Result has 433914 conditions, 103403 events. 56022/103403 cut-off events. For 521285/538930 co-relation queries the response was YES. Maximal size of possible extension queue 5693. Compared 1173975 event pairs, 9802 based on Foata normal form. 1704/93205 useless extension candidates. Maximal degree in co-relation 433809. Up to 27805 conditions per place. [2022-01-18 22:30:38,909 INFO L132 encePairwiseOnDemand]: 75/86 looper letters, 156 selfloop transitions, 199 changer transitions 0/410 dead transitions. [2022-01-18 22:30:38,909 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 410 transitions, 5763 flow [2022-01-18 22:30:38,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 22:30:38,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-18 22:30:38,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 443 transitions. [2022-01-18 22:30:38,910 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8585271317829457 [2022-01-18 22:30:38,910 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 443 transitions. [2022-01-18 22:30:38,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 443 transitions. [2022-01-18 22:30:38,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:30:38,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 443 transitions. [2022-01-18 22:30:38,911 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 73.83333333333333) internal successors, (443), 6 states have internal predecessors, (443), 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) [2022-01-18 22:30:38,912 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 86.0) internal successors, (602), 7 states have internal predecessors, (602), 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) [2022-01-18 22:30:38,912 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 86.0) internal successors, (602), 7 states have internal predecessors, (602), 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) [2022-01-18 22:30:38,912 INFO L186 Difference]: Start difference. First operand has 125 places, 285 transitions, 3636 flow. Second operand 6 states and 443 transitions. [2022-01-18 22:30:38,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 410 transitions, 5763 flow [2022-01-18 22:30:43,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 410 transitions, 5731 flow, removed 16 selfloop flow, removed 0 redundant places. [2022-01-18 22:30:43,991 INFO L242 Difference]: Finished difference. Result has 134 places, 341 transitions, 5353 flow [2022-01-18 22:30:43,991 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=3604, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=144, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5353, PETRI_PLACES=134, PETRI_TRANSITIONS=341} [2022-01-18 22:30:43,992 INFO L334 CegarLoopForPetriNet]: 96 programPoint places, 38 predicate places. [2022-01-18 22:30:43,992 INFO L470 AbstractCegarLoop]: Abstraction has has 134 places, 341 transitions, 5353 flow [2022-01-18 22:30:43,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.4) internal successors, (302), 5 states have internal predecessors, (302), 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) [2022-01-18 22:30:43,992 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:30:43,992 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:30:43,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-18 22:30:43,992 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-18 22:30:43,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:30:43,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1220965776, now seen corresponding path program 1 times [2022-01-18 22:30:43,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:30:43,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701226828] [2022-01-18 22:30:43,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:30:43,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:30:44,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:30:44,038 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-18 22:30:44,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:30:44,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701226828] [2022-01-18 22:30:44,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701226828] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:30:44,038 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:30:44,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 22:30:44,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069211630] [2022-01-18 22:30:44,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:30:44,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 22:30:44,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:30:44,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 22:30:44,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 22:30:44,040 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 86 [2022-01-18 22:30:44,040 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 341 transitions, 5353 flow. Second operand has 5 states, 5 states have (on average 60.4) internal successors, (302), 5 states have internal predecessors, (302), 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) [2022-01-18 22:30:44,040 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:30:44,040 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 86 [2022-01-18 22:30:44,040 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:31:02,117 INFO L129 PetriNetUnfolder]: 82744/155515 cut-off events. [2022-01-18 22:31:02,118 INFO L130 PetriNetUnfolder]: For 1024456/1025744 co-relation queries the response was YES. [2022-01-18 22:31:03,631 INFO L84 FinitePrefix]: Finished finitePrefix Result has 718323 conditions, 155515 events. 82744/155515 cut-off events. For 1024456/1025744 co-relation queries the response was YES. Maximal size of possible extension queue 8694. Compared 1883604 event pairs, 11929 based on Foata normal form. 1056/139420 useless extension candidates. Maximal degree in co-relation 718229. Up to 43257 conditions per place. [2022-01-18 22:31:04,880 INFO L132 encePairwiseOnDemand]: 75/86 looper letters, 304 selfloop transitions, 263 changer transitions 0/623 dead transitions. [2022-01-18 22:31:04,880 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 623 transitions, 10736 flow [2022-01-18 22:31:04,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 22:31:04,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-18 22:31:04,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 509 transitions. [2022-01-18 22:31:04,881 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.845514950166113 [2022-01-18 22:31:04,881 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 509 transitions. [2022-01-18 22:31:04,881 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 509 transitions. [2022-01-18 22:31:04,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:31:04,882 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 509 transitions. [2022-01-18 22:31:04,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 72.71428571428571) internal successors, (509), 7 states have internal predecessors, (509), 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) [2022-01-18 22:31:04,883 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 86.0) internal successors, (688), 8 states have internal predecessors, (688), 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) [2022-01-18 22:31:04,883 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 86.0) internal successors, (688), 8 states have internal predecessors, (688), 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) [2022-01-18 22:31:04,883 INFO L186 Difference]: Start difference. First operand has 134 places, 341 transitions, 5353 flow. Second operand 7 states and 509 transitions. [2022-01-18 22:31:04,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 623 transitions, 10736 flow [2022-01-18 22:31:39,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 623 transitions, 10672 flow, removed 32 selfloop flow, removed 0 redundant places. [2022-01-18 22:31:39,091 INFO L242 Difference]: Finished difference. Result has 144 places, 505 transitions, 9239 flow [2022-01-18 22:31:39,092 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=5327, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=341, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=109, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=9239, PETRI_PLACES=144, PETRI_TRANSITIONS=505} [2022-01-18 22:31:39,092 INFO L334 CegarLoopForPetriNet]: 96 programPoint places, 48 predicate places. [2022-01-18 22:31:39,092 INFO L470 AbstractCegarLoop]: Abstraction has has 144 places, 505 transitions, 9239 flow [2022-01-18 22:31:39,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.4) internal successors, (302), 5 states have internal predecessors, (302), 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) [2022-01-18 22:31:39,092 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:31:39,092 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:31:39,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-18 22:31:39,092 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-18 22:31:39,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:31:39,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1092939152, now seen corresponding path program 2 times [2022-01-18 22:31:39,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:31:39,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231060975] [2022-01-18 22:31:39,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:31:39,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:31:39,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:31:39,113 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-18 22:31:39,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:31:39,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231060975] [2022-01-18 22:31:39,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231060975] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:31:39,113 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:31:39,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 22:31:39,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818339336] [2022-01-18 22:31:39,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:31:39,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 22:31:39,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:31:39,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 22:31:39,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 22:31:39,114 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 86 [2022-01-18 22:31:39,115 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 505 transitions, 9239 flow. Second operand has 5 states, 5 states have (on average 60.4) internal successors, (302), 5 states have internal predecessors, (302), 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) [2022-01-18 22:31:39,115 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:31:39,115 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 86 [2022-01-18 22:31:39,115 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:32:02,946 INFO L129 PetriNetUnfolder]: 84438/163090 cut-off events. [2022-01-18 22:32:02,946 INFO L130 PetriNetUnfolder]: For 1360124/1362958 co-relation queries the response was YES. [2022-01-18 22:32:04,610 INFO L84 FinitePrefix]: Finished finitePrefix Result has 812959 conditions, 163090 events. 84438/163090 cut-off events. For 1360124/1362958 co-relation queries the response was YES. Maximal size of possible extension queue 9289. Compared 2048016 event pairs, 16446 based on Foata normal form. 1193/145892 useless extension candidates. Maximal degree in co-relation 812860. Up to 40733 conditions per place. [2022-01-18 22:32:05,996 INFO L132 encePairwiseOnDemand]: 75/86 looper letters, 318 selfloop transitions, 318 changer transitions 0/692 dead transitions. [2022-01-18 22:32:05,996 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 692 transitions, 13535 flow [2022-01-18 22:32:05,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 22:32:05,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-18 22:32:05,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 440 transitions. [2022-01-18 22:32:05,997 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8527131782945736 [2022-01-18 22:32:05,997 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 440 transitions. [2022-01-18 22:32:05,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 440 transitions. [2022-01-18 22:32:05,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:32:05,998 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 440 transitions. [2022-01-18 22:32:05,998 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 73.33333333333333) internal successors, (440), 6 states have internal predecessors, (440), 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) [2022-01-18 22:32:05,999 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 86.0) internal successors, (602), 7 states have internal predecessors, (602), 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) [2022-01-18 22:32:05,999 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 86.0) internal successors, (602), 7 states have internal predecessors, (602), 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) [2022-01-18 22:32:05,999 INFO L186 Difference]: Start difference. First operand has 144 places, 505 transitions, 9239 flow. Second operand 6 states and 440 transitions. [2022-01-18 22:32:05,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 692 transitions, 13535 flow [2022-01-18 22:32:30,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 692 transitions, 13517 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-01-18 22:32:30,354 INFO L242 Difference]: Finished difference. Result has 153 places, 594 transitions, 12323 flow [2022-01-18 22:32:30,354 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=9221, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=505, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=234, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=12323, PETRI_PLACES=153, PETRI_TRANSITIONS=594} [2022-01-18 22:32:30,354 INFO L334 CegarLoopForPetriNet]: 96 programPoint places, 57 predicate places. [2022-01-18 22:32:30,355 INFO L470 AbstractCegarLoop]: Abstraction has has 153 places, 594 transitions, 12323 flow [2022-01-18 22:32:30,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.4) internal successors, (302), 5 states have internal predecessors, (302), 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) [2022-01-18 22:32:30,355 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:32:30,355 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:32:30,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-18 22:32:30,355 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-18 22:32:30,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:32:30,355 INFO L85 PathProgramCache]: Analyzing trace with hash 248099206, now seen corresponding path program 1 times [2022-01-18 22:32:30,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:32:30,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953592399] [2022-01-18 22:32:30,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:32:30,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:32:30,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:32:30,372 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-01-18 22:32:30,373 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:32:30,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953592399] [2022-01-18 22:32:30,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953592399] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:32:30,373 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:32:30,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 22:32:30,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542739282] [2022-01-18 22:32:30,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:32:30,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 22:32:30,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:32:30,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 22:32:30,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 22:32:30,374 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 86 [2022-01-18 22:32:30,374 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 594 transitions, 12323 flow. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 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) [2022-01-18 22:32:30,374 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:32:30,374 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 86 [2022-01-18 22:32:30,374 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 22:33:09,101 INFO L129 PetriNetUnfolder]: 122175/244004 cut-off events. [2022-01-18 22:33:09,101 INFO L130 PetriNetUnfolder]: For 3132205/3237758 co-relation queries the response was YES. [2022-01-18 22:33:12,072 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1319960 conditions, 244004 events. 122175/244004 cut-off events. For 3132205/3237758 co-relation queries the response was YES. Maximal size of possible extension queue 14449. Compared 3335588 event pairs, 47621 based on Foata normal form. 2827/219691 useless extension candidates. Maximal degree in co-relation 1319856. Up to 135117 conditions per place. [2022-01-18 22:33:14,155 INFO L132 encePairwiseOnDemand]: 79/86 looper letters, 504 selfloop transitions, 396 changer transitions 0/971 dead transitions. [2022-01-18 22:33:14,155 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 971 transitions, 22448 flow [2022-01-18 22:33:14,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 22:33:14,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-18 22:33:14,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 219 transitions. [2022-01-18 22:33:14,156 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8488372093023255 [2022-01-18 22:33:14,157 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 219 transitions. [2022-01-18 22:33:14,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 219 transitions. [2022-01-18 22:33:14,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 22:33:14,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 219 transitions. [2022-01-18 22:33:14,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 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) [2022-01-18 22:33:14,157 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 86.0) internal successors, (344), 4 states have internal predecessors, (344), 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) [2022-01-18 22:33:14,158 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 86.0) internal successors, (344), 4 states have internal predecessors, (344), 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) [2022-01-18 22:33:14,158 INFO L186 Difference]: Start difference. First operand has 153 places, 594 transitions, 12323 flow. Second operand 3 states and 219 transitions. [2022-01-18 22:33:14,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 971 transitions, 22448 flow [2022-01-18 22:34:30,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 971 transitions, 22312 flow, removed 68 selfloop flow, removed 0 redundant places. [2022-01-18 22:34:30,791 INFO L242 Difference]: Finished difference. Result has 157 places, 853 transitions, 20861 flow [2022-01-18 22:34:30,792 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=12255, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=594, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=137, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=20861, PETRI_PLACES=157, PETRI_TRANSITIONS=853} [2022-01-18 22:34:30,794 INFO L334 CegarLoopForPetriNet]: 96 programPoint places, 61 predicate places. [2022-01-18 22:34:30,794 INFO L470 AbstractCegarLoop]: Abstraction has has 157 places, 853 transitions, 20861 flow [2022-01-18 22:34:30,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 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) [2022-01-18 22:34:30,794 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 22:34:30,794 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 22:34:30,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-18 22:34:30,794 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-18 22:34:30,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 22:34:30,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1553720405, now seen corresponding path program 1 times [2022-01-18 22:34:30,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 22:34:30,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975801748] [2022-01-18 22:34:30,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 22:34:30,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 22:34:30,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 22:34:30,852 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-01-18 22:34:30,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 22:34:30,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975801748] [2022-01-18 22:34:30,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975801748] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 22:34:30,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 22:34:30,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 22:34:30,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067865185] [2022-01-18 22:34:30,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 22:34:30,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 22:34:30,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 22:34:30,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 22:34:30,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 22:34:30,856 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 86 [2022-01-18 22:34:30,856 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 853 transitions, 20861 flow. Second operand has 5 states, 5 states have (on average 60.6) internal successors, (303), 5 states have internal predecessors, (303), 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) [2022-01-18 22:34:30,856 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 22:34:30,856 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 86 [2022-01-18 22:34:30,856 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand