/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-OGIterative.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/thin001_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 01:49:06,254 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 01:49:06,257 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 01:49:06,289 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-13 01:49:06,289 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-13 01:49:06,292 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-13 01:49:06,294 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-13 01:49:06,299 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-13 01:49:06,301 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-13 01:49:06,305 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-13 01:49:06,306 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-13 01:49:06,307 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-13 01:49:06,307 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-13 01:49:06,308 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-13 01:49:06,309 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-13 01:49:06,313 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-13 01:49:06,313 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-13 01:49:06,313 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-13 01:49:06,314 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-13 01:49:06,315 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-13 01:49:06,316 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-13 01:49:06,320 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-13 01:49:06,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-13 01:49:06,322 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-13 01:49:06,326 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-08-13 01:49:06,330 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-13 01:49:06,331 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-13 01:49:06,331 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-13 01:49:06,336 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-OGIterative.epf [2021-08-13 01:49:06,363 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 01:49:06,363 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 01:49:06,366 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 01:49:06,366 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 01:49:06,367 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 01:49:06,367 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 01:49:06,367 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 01:49:06,367 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 01:49:06,367 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 01:49:06,367 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 01:49:06,368 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 01:49:06,368 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 01:49:06,368 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 01:49:06,368 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 01:49:06,368 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 01:49:06,368 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 01:49:06,368 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 01:49:06,368 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 01:49:06,369 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 01:49:06,369 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 01:49:06,369 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 01:49:06,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 01:49:06,369 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 01:49:06,369 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 01:49:06,369 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 01:49:06,369 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 01:49:06,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 01:49:06,369 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 01:49:06,369 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 01:49:06,370 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 01:49:06,370 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 01:49:06,370 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 01:49:06,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 01:49:06,689 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 01:49:06,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 01:49:06,692 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-13 01:49:06,692 INFO L275 PluginConnector]: CDTParser initialized [2021-08-13 01:49:06,693 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin001_pso.opt.i [2021-08-13 01:49:06,745 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71beb4494/2766b518c925478390ab9aaa5072e542/FLAG56b4816dc [2021-08-13 01:49:07,189 INFO L306 CDTParser]: Found 1 translation units. [2021-08-13 01:49:07,189 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin001_pso.opt.i [2021-08-13 01:49:07,227 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71beb4494/2766b518c925478390ab9aaa5072e542/FLAG56b4816dc [2021-08-13 01:49:07,545 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71beb4494/2766b518c925478390ab9aaa5072e542 [2021-08-13 01:49:07,547 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 01:49:07,548 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-13 01:49:07,548 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-13 01:49:07,549 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-13 01:49:07,551 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-13 01:49:07,551 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 01:49:07" (1/1) ... [2021-08-13 01:49:07,552 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27f68c81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:49:07, skipping insertion in model container [2021-08-13 01:49:07,552 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 01:49:07" (1/1) ... [2021-08-13 01:49:07,557 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-13 01:49:07,579 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-13 01:49:07,666 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin001_pso.opt.i[949,962] [2021-08-13 01:49:07,790 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 01:49:07,795 INFO L203 MainTranslator]: Completed pre-run [2021-08-13 01:49:07,802 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin001_pso.opt.i[949,962] [2021-08-13 01:49:07,819 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 01:49:07,868 INFO L208 MainTranslator]: Completed translation [2021-08-13 01:49:07,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:49:07 WrapperNode [2021-08-13 01:49:07,868 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-13 01:49:07,869 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 01:49:07,869 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 01:49:07,869 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 01:49:07,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:49:07" (1/1) ... [2021-08-13 01:49:07,882 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:49:07" (1/1) ... [2021-08-13 01:49:07,895 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 01:49:07,895 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 01:49:07,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 01:49:07,896 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 01:49:07,901 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:49:07" (1/1) ... [2021-08-13 01:49:07,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:49:07" (1/1) ... [2021-08-13 01:49:07,903 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:49:07" (1/1) ... [2021-08-13 01:49:07,904 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:49:07" (1/1) ... [2021-08-13 01:49:07,907 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:49:07" (1/1) ... [2021-08-13 01:49:07,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:49:07" (1/1) ... [2021-08-13 01:49:07,909 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:49:07" (1/1) ... [2021-08-13 01:49:07,911 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 01:49:07,911 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 01:49:07,912 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 01:49:07,912 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 01:49:07,912 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:49:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 01:49:07,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-13 01:49:07,985 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-13 01:49:07,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-13 01:49:07,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-13 01:49:07,986 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-13 01:49:07,986 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-13 01:49:07,986 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-13 01:49:07,986 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-13 01:49:07,986 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-13 01:49:07,986 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-13 01:49:07,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-13 01:49:07,986 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-13 01:49:07,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 01:49:07,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 01:49:07,987 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-13 01:49:08,348 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 01:49:08,348 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-13 01:49:08,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 01:49:08 BoogieIcfgContainer [2021-08-13 01:49:08,349 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 01:49:08,350 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 01:49:08,350 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 01:49:08,352 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 01:49:08,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.08 01:49:07" (1/3) ... [2021-08-13 01:49:08,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fe0b18b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 01:49:08, skipping insertion in model container [2021-08-13 01:49:08,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:49:07" (2/3) ... [2021-08-13 01:49:08,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fe0b18b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 01:49:08, skipping insertion in model container [2021-08-13 01:49:08,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 01:49:08" (3/3) ... [2021-08-13 01:49:08,354 INFO L111 eAbstractionObserver]: Analyzing ICFG thin001_pso.opt.i [2021-08-13 01:49:08,358 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 01:49:08,358 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-13 01:49:08,359 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-13 01:49:08,379 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,379 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,379 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,379 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,380 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,380 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,380 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,380 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,380 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,380 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,380 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,381 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,381 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,381 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,381 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,381 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,381 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,381 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,382 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,382 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,382 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,382 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,382 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,382 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,382 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,383 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,383 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,383 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,383 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,383 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,383 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,383 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,383 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,384 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,384 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,384 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,385 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,386 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,386 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,386 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,389 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,389 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,390 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,390 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,391 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,391 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,391 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,392 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:49:08,393 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-13 01:49:08,409 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-13 01:49:08,423 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 01:49:08,423 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 01:49:08,423 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 01:49:08,424 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 01:49:08,424 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 01:49:08,424 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 01:49:08,424 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 01:49:08,424 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 01:49:08,431 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 85 transitions, 185 flow [2021-08-13 01:49:08,456 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2021-08-13 01:49:08,456 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 01:49:08,459 INFO L84 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2021-08-13 01:49:08,459 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 85 transitions, 185 flow [2021-08-13 01:49:08,462 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 70 transitions, 149 flow [2021-08-13 01:49:08,473 INFO L129 PetriNetUnfolder]: 1/69 cut-off events. [2021-08-13 01:49:08,473 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 01:49:08,474 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:49:08,474 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 01:49:08,475 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:49:08,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:49:08,478 INFO L82 PathProgramCache]: Analyzing trace with hash 1408065288, now seen corresponding path program 1 times [2021-08-13 01:49:08,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:49:08,484 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656844387] [2021-08-13 01:49:08,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:49:08,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:49:08,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:49:08,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:49:08,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:49:08,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:49:08,671 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 01:49:08,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 01:49:08,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:49:08,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:49:08,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:49:08,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:49:08,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:49:08,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:49:08,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 01:49:08,706 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:49:08,706 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656844387] [2021-08-13 01:49:08,707 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656844387] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:49:08,707 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:49:08,707 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-13 01:49:08,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947238266] [2021-08-13 01:49:08,713 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-13 01:49:08,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:49:08,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-13 01:49:08,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-13 01:49:08,725 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 85 [2021-08-13 01:49:08,728 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 70 transitions, 149 flow. Second operand has 6 states, 6 states have (on average 74.16666666666667) internal successors, (445), 6 states have internal predecessors, (445), 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) [2021-08-13 01:49:08,728 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:49:08,728 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 85 [2021-08-13 01:49:08,729 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:49:08,818 INFO L129 PetriNetUnfolder]: 3/92 cut-off events. [2021-08-13 01:49:08,818 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 01:49:08,819 INFO L84 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 92 events. 3/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 111 event pairs, 0 based on Foata normal form. 4/95 useless extension candidates. Maximal degree in co-relation 90. Up to 7 conditions per place. [2021-08-13 01:49:08,820 INFO L132 encePairwiseOnDemand]: 78/85 looper letters, 6 selfloop transitions, 2 changer transitions 11/79 dead transitions. [2021-08-13 01:49:08,820 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 79 transitions, 203 flow [2021-08-13 01:49:08,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-13 01:49:08,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-08-13 01:49:08,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 679 transitions. [2021-08-13 01:49:08,830 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8875816993464052 [2021-08-13 01:49:08,830 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 679 transitions. [2021-08-13 01:49:08,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 679 transitions. [2021-08-13 01:49:08,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:49:08,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 679 transitions. [2021-08-13 01:49:08,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 75.44444444444444) internal successors, (679), 9 states have internal predecessors, (679), 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) [2021-08-13 01:49:08,842 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 85.0) internal successors, (850), 10 states have internal predecessors, (850), 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) [2021-08-13 01:49:08,843 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 85.0) internal successors, (850), 10 states have internal predecessors, (850), 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) [2021-08-13 01:49:08,843 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 8 predicate places. [2021-08-13 01:49:08,843 INFO L482 AbstractCegarLoop]: Abstraction has has 87 places, 79 transitions, 203 flow [2021-08-13 01:49:08,844 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 74.16666666666667) internal successors, (445), 6 states have internal predecessors, (445), 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) [2021-08-13 01:49:08,844 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:49:08,844 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 01:49:08,844 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-13 01:49:08,844 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:49:08,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:49:08,845 INFO L82 PathProgramCache]: Analyzing trace with hash -873664247, now seen corresponding path program 1 times [2021-08-13 01:49:08,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:49:08,845 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153223938] [2021-08-13 01:49:08,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:49:08,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:49:08,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:49:08,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:49:08,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:49:08,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:49:08,912 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-08-13 01:49:08,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 01:49:08,919 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 01:49:08,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 01:49:08,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:49:08,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:49:08,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:49:08,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:49:08,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:49:08,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:49:08,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 01:49:08,948 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:49:08,948 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153223938] [2021-08-13 01:49:08,948 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153223938] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:49:08,948 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:49:08,948 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 01:49:08,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246543743] [2021-08-13 01:49:08,950 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 01:49:08,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:49:08,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 01:49:08,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 01:49:08,951 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 85 [2021-08-13 01:49:08,952 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 79 transitions, 203 flow. Second operand has 7 states, 7 states have (on average 70.42857142857143) internal successors, (493), 7 states have internal predecessors, (493), 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) [2021-08-13 01:49:08,952 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:49:08,952 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 85 [2021-08-13 01:49:08,952 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:49:09,079 INFO L129 PetriNetUnfolder]: 80/343 cut-off events. [2021-08-13 01:49:09,079 INFO L130 PetriNetUnfolder]: For 33/41 co-relation queries the response was YES. [2021-08-13 01:49:09,081 INFO L84 FinitePrefix]: Finished finitePrefix Result has 614 conditions, 343 events. 80/343 cut-off events. For 33/41 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1821 event pairs, 1 based on Foata normal form. 4/338 useless extension candidates. Maximal degree in co-relation 577. Up to 54 conditions per place. [2021-08-13 01:49:09,082 INFO L132 encePairwiseOnDemand]: 78/85 looper letters, 11 selfloop transitions, 3 changer transitions 45/116 dead transitions. [2021-08-13 01:49:09,082 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 116 transitions, 449 flow [2021-08-13 01:49:09,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 01:49:09,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 01:49:09,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 728 transitions. [2021-08-13 01:49:09,083 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8564705882352941 [2021-08-13 01:49:09,084 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 728 transitions. [2021-08-13 01:49:09,084 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 728 transitions. [2021-08-13 01:49:09,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:49:09,084 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 728 transitions. [2021-08-13 01:49:09,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 72.8) internal successors, (728), 10 states have internal predecessors, (728), 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) [2021-08-13 01:49:09,087 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 85.0) internal successors, (935), 11 states have internal predecessors, (935), 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) [2021-08-13 01:49:09,087 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 85.0) internal successors, (935), 11 states have internal predecessors, (935), 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) [2021-08-13 01:49:09,088 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 17 predicate places. [2021-08-13 01:49:09,088 INFO L482 AbstractCegarLoop]: Abstraction has has 96 places, 116 transitions, 449 flow [2021-08-13 01:49:09,088 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 70.42857142857143) internal successors, (493), 7 states have internal predecessors, (493), 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) [2021-08-13 01:49:09,088 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:49:09,088 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 01:49:09,088 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-13 01:49:09,089 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:49:09,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:49:09,089 INFO L82 PathProgramCache]: Analyzing trace with hash 1933757834, now seen corresponding path program 1 times [2021-08-13 01:49:09,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:49:09,089 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837091288] [2021-08-13 01:49:09,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:49:09,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:49:09,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:49:09,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:49:09,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:49:09,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:49:09,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:49:09,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:49:09,151 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 01:49:09,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 01:49:09,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:49:09,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:49:09,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:49:09,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:49:09,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:49:09,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:49:09,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 01:49:09,180 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:49:09,181 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837091288] [2021-08-13 01:49:09,181 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837091288] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:49:09,181 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:49:09,181 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 01:49:09,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615149657] [2021-08-13 01:49:09,181 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 01:49:09,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:49:09,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 01:49:09,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-13 01:49:09,183 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 85 [2021-08-13 01:49:09,183 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 116 transitions, 449 flow. Second operand has 7 states, 7 states have (on average 72.28571428571429) internal successors, (506), 7 states have internal predecessors, (506), 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) [2021-08-13 01:49:09,183 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:49:09,183 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 85 [2021-08-13 01:49:09,183 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:49:09,342 INFO L129 PetriNetUnfolder]: 134/460 cut-off events. [2021-08-13 01:49:09,342 INFO L130 PetriNetUnfolder]: For 132/233 co-relation queries the response was YES. [2021-08-13 01:49:09,344 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1071 conditions, 460 events. 134/460 cut-off events. For 132/233 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 2773 event pairs, 1 based on Foata normal form. 5/455 useless extension candidates. Maximal degree in co-relation 1030. Up to 76 conditions per place. [2021-08-13 01:49:09,345 INFO L132 encePairwiseOnDemand]: 77/85 looper letters, 6 selfloop transitions, 5 changer transitions 110/181 dead transitions. [2021-08-13 01:49:09,345 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 181 transitions, 1051 flow [2021-08-13 01:49:09,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 01:49:09,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 01:49:09,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 956 transitions. [2021-08-13 01:49:09,347 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.865158371040724 [2021-08-13 01:49:09,347 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 956 transitions. [2021-08-13 01:49:09,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 956 transitions. [2021-08-13 01:49:09,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:49:09,348 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 956 transitions. [2021-08-13 01:49:09,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 73.53846153846153) internal successors, (956), 13 states have internal predecessors, (956), 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) [2021-08-13 01:49:09,368 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 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) [2021-08-13 01:49:09,369 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 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) [2021-08-13 01:49:09,369 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 29 predicate places. [2021-08-13 01:49:09,369 INFO L482 AbstractCegarLoop]: Abstraction has has 108 places, 181 transitions, 1051 flow [2021-08-13 01:49:09,369 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 72.28571428571429) internal successors, (506), 7 states have internal predecessors, (506), 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) [2021-08-13 01:49:09,369 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:49:09,369 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 01:49:09,370 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-13 01:49:09,370 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:49:09,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:49:09,370 INFO L82 PathProgramCache]: Analyzing trace with hash -969175403, now seen corresponding path program 1 times [2021-08-13 01:49:09,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:49:09,370 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757125481] [2021-08-13 01:49:09,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:49:09,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:49:09,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:49:09,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:49:09,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:49:09,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:49:09,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:49:09,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:49:09,416 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 01:49:09,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 01:49:09,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:49:09,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:49:09,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:49:09,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:49:09,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:49:09,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:49:09,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 01:49:09,447 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:49:09,447 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757125481] [2021-08-13 01:49:09,447 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757125481] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:49:09,447 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:49:09,447 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 01:49:09,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046869441] [2021-08-13 01:49:09,448 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 01:49:09,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:49:09,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 01:49:09,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-13 01:49:09,449 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 85 [2021-08-13 01:49:09,449 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 181 transitions, 1051 flow. Second operand has 7 states, 7 states have (on average 72.28571428571429) internal successors, (506), 7 states have internal predecessors, (506), 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) [2021-08-13 01:49:09,450 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:49:09,450 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 85 [2021-08-13 01:49:09,450 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:49:09,658 INFO L129 PetriNetUnfolder]: 313/863 cut-off events. [2021-08-13 01:49:09,658 INFO L130 PetriNetUnfolder]: For 579/1088 co-relation queries the response was YES. [2021-08-13 01:49:09,661 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2548 conditions, 863 events. 313/863 cut-off events. For 579/1088 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 6014 event pairs, 2 based on Foata normal form. 15/866 useless extension candidates. Maximal degree in co-relation 2503. Up to 210 conditions per place. [2021-08-13 01:49:09,662 INFO L132 encePairwiseOnDemand]: 77/85 looper letters, 6 selfloop transitions, 4 changer transitions 250/318 dead transitions. [2021-08-13 01:49:09,662 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 318 transitions, 2553 flow [2021-08-13 01:49:09,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 01:49:09,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 01:49:09,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 956 transitions. [2021-08-13 01:49:09,664 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.865158371040724 [2021-08-13 01:49:09,664 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 956 transitions. [2021-08-13 01:49:09,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 956 transitions. [2021-08-13 01:49:09,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:49:09,665 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 956 transitions. [2021-08-13 01:49:09,666 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 73.53846153846153) internal successors, (956), 13 states have internal predecessors, (956), 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) [2021-08-13 01:49:09,667 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 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) [2021-08-13 01:49:09,668 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 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) [2021-08-13 01:49:09,668 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 41 predicate places. [2021-08-13 01:49:09,668 INFO L482 AbstractCegarLoop]: Abstraction has has 120 places, 318 transitions, 2553 flow [2021-08-13 01:49:09,668 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 72.28571428571429) internal successors, (506), 7 states have internal predecessors, (506), 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) [2021-08-13 01:49:09,668 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:49:09,668 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 01:49:09,668 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-13 01:49:09,669 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:49:09,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:49:09,669 INFO L82 PathProgramCache]: Analyzing trace with hash 228307987, now seen corresponding path program 1 times [2021-08-13 01:49:09,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:49:09,669 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908320895] [2021-08-13 01:49:09,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:49:09,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:49:09,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:49:09,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:49:09,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:49:09,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:49:09,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:49:09,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:49:09,709 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 01:49:09,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 01:49:09,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:49:09,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:49:09,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:49:09,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:49:09,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:49:09,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:49:09,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 01:49:09,737 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:49:09,737 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908320895] [2021-08-13 01:49:09,737 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908320895] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:49:09,737 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:49:09,737 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 01:49:09,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561880936] [2021-08-13 01:49:09,737 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 01:49:09,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:49:09,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 01:49:09,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-13 01:49:09,739 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 85 [2021-08-13 01:49:09,739 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 318 transitions, 2553 flow. Second operand has 7 states, 7 states have (on average 72.28571428571429) internal successors, (506), 7 states have internal predecessors, (506), 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) [2021-08-13 01:49:09,739 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:49:09,739 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 85 [2021-08-13 01:49:09,739 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:49:10,047 INFO L129 PetriNetUnfolder]: 734/1769 cut-off events. [2021-08-13 01:49:10,047 INFO L130 PetriNetUnfolder]: For 2825/4617 co-relation queries the response was YES. [2021-08-13 01:49:10,053 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5852 conditions, 1769 events. 734/1769 cut-off events. For 2825/4617 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 13684 event pairs, 2 based on Foata normal form. 34/1785 useless extension candidates. Maximal degree in co-relation 5803. Up to 374 conditions per place. [2021-08-13 01:49:10,056 INFO L132 encePairwiseOnDemand]: 77/85 looper letters, 0 selfloop transitions, 0 changer transitions 559/559 dead transitions. [2021-08-13 01:49:10,056 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 559 transitions, 5837 flow [2021-08-13 01:49:10,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 01:49:10,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 01:49:10,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 955 transitions. [2021-08-13 01:49:10,058 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8642533936651584 [2021-08-13 01:49:10,058 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 955 transitions. [2021-08-13 01:49:10,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 955 transitions. [2021-08-13 01:49:10,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:49:10,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 955 transitions. [2021-08-13 01:49:10,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 73.46153846153847) internal successors, (955), 13 states have internal predecessors, (955), 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) [2021-08-13 01:49:10,061 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 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) [2021-08-13 01:49:10,062 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 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) [2021-08-13 01:49:10,062 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 51 predicate places. [2021-08-13 01:49:10,062 INFO L482 AbstractCegarLoop]: Abstraction has has 130 places, 559 transitions, 5837 flow [2021-08-13 01:49:10,062 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 72.28571428571429) internal successors, (506), 7 states have internal predecessors, (506), 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) [2021-08-13 01:49:10,062 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown