/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-CovSimpl-Hitting.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 15:59:31,776 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 15:59:31,779 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 15:59:31,821 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-13 15:59:31,821 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-13 15:59:31,824 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-13 15:59:31,827 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-13 15:59:31,832 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-13 15:59:31,834 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-13 15:59:31,838 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-13 15:59:31,839 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-13 15:59:31,840 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-13 15:59:31,841 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-13 15:59:31,842 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-13 15:59:31,844 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-13 15:59:31,845 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-13 15:59:31,847 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-13 15:59:31,848 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-13 15:59:31,851 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-13 15:59:31,861 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-13 15:59:31,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-13 15:59:31,866 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-13 15:59:31,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-13 15:59:31,867 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-13 15:59:31,869 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-13 15:59:31,869 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-13 15:59:31,870 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-13 15:59:31,870 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-13 15:59:31,871 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-13 15:59:31,871 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-13 15:59:31,871 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-13 15:59:31,872 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-13 15:59:31,872 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-13 15:59:31,873 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-13 15:59:31,874 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-13 15:59:31,874 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-13 15:59:31,874 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-13 15:59:31,875 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-13 15:59:31,875 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-13 15:59:31,876 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-13 15:59:31,876 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-13 15:59:31,880 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-CovSimpl-Hitting.epf [2021-08-13 15:59:31,920 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 15:59:31,920 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 15:59:31,924 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 15:59:31,924 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 15:59:31,924 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 15:59:31,924 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 15:59:31,925 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 15:59:31,925 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 15:59:31,925 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 15:59:31,925 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 15:59:31,926 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 15:59:31,926 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 15:59:31,926 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 15:59:31,926 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 15:59:31,927 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 15:59:31,927 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 15:59:31,927 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 15:59:31,927 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 15:59:31,927 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 15:59:31,927 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 15:59:31,928 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 15:59:31,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 15:59:31,928 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 15:59:31,928 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 15:59:31,928 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 15:59:31,928 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 15:59:31,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 15:59:31,929 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 15:59:31,929 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 15:59:31,929 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 15:59:31,929 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 15:59:31,929 INFO L138 SettingsManager]: * Use hitting sets in computation of OwickiGries annotation=true [2021-08-13 15:59:31,929 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-13 15:59:31,930 INFO L138 SettingsManager]: * Simplify away covered predicates in OwickiGries annotation=true 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 15:59:32,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 15:59:32,314 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 15:59:32,316 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 15:59:32,318 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-13 15:59:32,318 INFO L275 PluginConnector]: CDTParser initialized [2021-08-13 15:59:32,319 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.oepc.i [2021-08-13 15:59:32,386 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cf43e93d/fe4767feedf545c4b4b959c87ffd2342/FLAGdf8b4ee24 [2021-08-13 15:59:32,963 INFO L306 CDTParser]: Found 1 translation units. [2021-08-13 15:59:32,963 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.oepc.i [2021-08-13 15:59:32,979 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cf43e93d/fe4767feedf545c4b4b959c87ffd2342/FLAGdf8b4ee24 [2021-08-13 15:59:33,360 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cf43e93d/fe4767feedf545c4b4b959c87ffd2342 [2021-08-13 15:59:33,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 15:59:33,365 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-13 15:59:33,368 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-13 15:59:33,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-13 15:59:33,372 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-13 15:59:33,372 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 03:59:33" (1/1) ... [2021-08-13 15:59:33,373 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b421cbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:59:33, skipping insertion in model container [2021-08-13 15:59:33,374 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 03:59:33" (1/1) ... [2021-08-13 15:59:33,380 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-13 15:59:33,426 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-13 15:59:33,590 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/safe013_tso.oepc.i[950,963] [2021-08-13 15:59:33,792 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 15:59:33,799 INFO L203 MainTranslator]: Completed pre-run [2021-08-13 15:59:33,811 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/safe013_tso.oepc.i[950,963] [2021-08-13 15:59:33,856 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 15:59:33,925 INFO L208 MainTranslator]: Completed translation [2021-08-13 15:59:33,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:59:33 WrapperNode [2021-08-13 15:59:33,926 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-13 15:59:33,927 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 15:59:33,927 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 15:59:33,927 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 15:59:33,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:59:33" (1/1) ... [2021-08-13 15:59:33,964 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:59:33" (1/1) ... [2021-08-13 15:59:33,986 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 15:59:33,987 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 15:59:33,987 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 15:59:33,987 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 15:59:33,994 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:59:33" (1/1) ... [2021-08-13 15:59:33,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:59:33" (1/1) ... [2021-08-13 15:59:34,012 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:59:33" (1/1) ... [2021-08-13 15:59:34,013 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:59:33" (1/1) ... [2021-08-13 15:59:34,017 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:59:33" (1/1) ... [2021-08-13 15:59:34,018 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:59:33" (1/1) ... [2021-08-13 15:59:34,020 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:59:33" (1/1) ... [2021-08-13 15:59:34,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 15:59:34,022 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 15:59:34,023 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 15:59:34,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 15:59:34,023 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:59:33" (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 15:59:34,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-13 15:59:34,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-13 15:59:34,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-13 15:59:34,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-13 15:59:34,116 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-13 15:59:34,117 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-13 15:59:34,117 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-13 15:59:34,117 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-13 15:59:34,117 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-13 15:59:34,117 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-13 15:59:34,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-13 15:59:34,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-13 15:59:34,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 15:59:34,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 15:59:34,118 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 15:59:34,459 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 15:59:34,459 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-13 15:59:34,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 03:59:34 BoogieIcfgContainer [2021-08-13 15:59:34,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 15:59:34,463 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 15:59:34,463 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 15:59:34,465 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 15:59:34,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.08 03:59:33" (1/3) ... [2021-08-13 15:59:34,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@723a8db6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 03:59:34, skipping insertion in model container [2021-08-13 15:59:34,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 03:59:33" (2/3) ... [2021-08-13 15:59:34,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@723a8db6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 03:59:34, skipping insertion in model container [2021-08-13 15:59:34,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 03:59:34" (3/3) ... [2021-08-13 15:59:34,468 INFO L111 eAbstractionObserver]: Analyzing ICFG safe013_tso.oepc.i [2021-08-13 15:59:34,473 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 15:59:34,474 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-13 15:59:34,475 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-13 15:59:34,499 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,499 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,499 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,499 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,500 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,500 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,500 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,500 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,501 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,501 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,501 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,501 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,501 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,501 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,502 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,502 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,502 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,502 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,502 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,502 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,503 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,503 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,503 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,503 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,503 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,504 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,504 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,504 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,504 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,504 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,504 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,504 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,505 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,505 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,505 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,505 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,507 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,507 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,507 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,508 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,512 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,512 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,512 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,513 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,514 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,515 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,515 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,515 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 15:59:34,516 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-13 15:59:34,535 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-13 15:59:34,554 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 15:59:34,555 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 15:59:34,555 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 15:59:34,555 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 15:59:34,555 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 15:59:34,555 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 15:59:34,555 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 15:59:34,555 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 15:59:34,566 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 84 transitions, 183 flow [2021-08-13 15:59:34,601 INFO L129 PetriNetUnfolder]: 2/81 cut-off events. [2021-08-13 15:59:34,602 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 15:59:34,605 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 81 events. 2/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2021-08-13 15:59:34,605 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 84 transitions, 183 flow [2021-08-13 15:59:34,608 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 69 transitions, 147 flow [2021-08-13 15:59:34,625 INFO L129 PetriNetUnfolder]: 1/68 cut-off events. [2021-08-13 15:59:34,626 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 15:59:34,626 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:59:34,627 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] [2021-08-13 15:59:34,627 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:59:34,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:59:34,632 INFO L82 PathProgramCache]: Analyzing trace with hash 369061162, now seen corresponding path program 1 times [2021-08-13 15:59:34,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:59:34,639 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569046633] [2021-08-13 15:59:34,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:59:34,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:59:34,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:59:34,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:59:34,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:59:34,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:59:34,983 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 15:59:34,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 15:59:35,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:59:35,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:59:35,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:59:35,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:59:35,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:59:35,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:59:35,068 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 15:59:35,069 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:59:35,069 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569046633] [2021-08-13 15:59:35,069 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569046633] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:59:35,069 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:59:35,070 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-13 15:59:35,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724332497] [2021-08-13 15:59:35,077 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-13 15:59:35,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:59:35,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-13 15:59:35,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-13 15:59:35,097 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 84 [2021-08-13 15:59:35,104 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 69 transitions, 147 flow. Second operand has 6 states, 6 states have (on average 73.16666666666667) internal successors, (439), 6 states have internal predecessors, (439), 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 15:59:35,113 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:59:35,114 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 84 [2021-08-13 15:59:35,115 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:59:35,293 INFO L129 PetriNetUnfolder]: 3/91 cut-off events. [2021-08-13 15:59:35,293 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 15:59:35,294 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 91 events. 3/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 116 event pairs, 0 based on Foata normal form. 4/94 useless extension candidates. Maximal degree in co-relation 90. Up to 7 conditions per place. [2021-08-13 15:59:35,295 INFO L132 encePairwiseOnDemand]: 77/84 looper letters, 6 selfloop transitions, 2 changer transitions 11/78 dead transitions. [2021-08-13 15:59:35,295 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 78 transitions, 201 flow [2021-08-13 15:59:35,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-13 15:59:35,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-08-13 15:59:35,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 670 transitions. [2021-08-13 15:59:35,314 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8862433862433863 [2021-08-13 15:59:35,315 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 670 transitions. [2021-08-13 15:59:35,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 670 transitions. [2021-08-13 15:59:35,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:59:35,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 670 transitions. [2021-08-13 15:59:35,326 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 74.44444444444444) internal successors, (670), 9 states have internal predecessors, (670), 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 15:59:35,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 84.0) internal successors, (840), 10 states have internal predecessors, (840), 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 15:59:35,336 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 84.0) internal successors, (840), 10 states have internal predecessors, (840), 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 15:59:35,337 INFO L348 CegarLoopForPetriNet]: 78 programPoint places, 8 predicate places. [2021-08-13 15:59:35,337 INFO L482 AbstractCegarLoop]: Abstraction has has 86 places, 78 transitions, 201 flow [2021-08-13 15:59:35,337 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 73.16666666666667) internal successors, (439), 6 states have internal predecessors, (439), 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 15:59:35,337 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:59:35,338 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] [2021-08-13 15:59:35,338 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-13 15:59:35,339 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:59:35,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:59:35,340 INFO L82 PathProgramCache]: Analyzing trace with hash -594004215, now seen corresponding path program 1 times [2021-08-13 15:59:35,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:59:35,340 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126438450] [2021-08-13 15:59:35,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:59:35,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:59:35,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:59:35,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:59:35,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:59:35,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:59:35,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:59:35,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:59:35,507 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 15:59:35,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 15:59:35,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:59:35,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:59:35,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:59:35,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:59:35,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:59:35,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:59:35,578 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 15:59:35,578 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:59:35,579 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126438450] [2021-08-13 15:59:35,579 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126438450] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:59:35,579 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:59:35,579 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 15:59:35,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325336385] [2021-08-13 15:59:35,581 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 15:59:35,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:59:35,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 15:59:35,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-13 15:59:35,584 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 84 [2021-08-13 15:59:35,585 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 78 transitions, 201 flow. Second operand has 7 states, 7 states have (on average 71.28571428571429) internal successors, (499), 7 states have internal predecessors, (499), 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 15:59:35,585 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:59:35,585 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 84 [2021-08-13 15:59:35,585 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:59:35,827 INFO L129 PetriNetUnfolder]: 17/133 cut-off events. [2021-08-13 15:59:35,827 INFO L130 PetriNetUnfolder]: For 10/20 co-relation queries the response was YES. [2021-08-13 15:59:35,828 INFO L84 FinitePrefix]: Finished finitePrefix Result has 244 conditions, 133 events. 17/133 cut-off events. For 10/20 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 401 event pairs, 0 based on Foata normal form. 3/135 useless extension candidates. Maximal degree in co-relation 209. Up to 16 conditions per place. [2021-08-13 15:59:35,829 INFO L132 encePairwiseOnDemand]: 76/84 looper letters, 6 selfloop transitions, 4 changer transitions 36/103 dead transitions. [2021-08-13 15:59:35,829 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 103 transitions, 385 flow [2021-08-13 15:59:35,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 15:59:35,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 15:59:35,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 943 transitions. [2021-08-13 15:59:35,832 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8635531135531136 [2021-08-13 15:59:35,832 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 943 transitions. [2021-08-13 15:59:35,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 943 transitions. [2021-08-13 15:59:35,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:59:35,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 943 transitions. [2021-08-13 15:59:35,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 72.53846153846153) internal successors, (943), 13 states have internal predecessors, (943), 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 15:59:35,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 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 15:59:35,837 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 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 15:59:35,838 INFO L348 CegarLoopForPetriNet]: 78 programPoint places, 20 predicate places. [2021-08-13 15:59:35,838 INFO L482 AbstractCegarLoop]: Abstraction has has 98 places, 103 transitions, 385 flow [2021-08-13 15:59:35,839 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 71.28571428571429) internal successors, (499), 7 states have internal predecessors, (499), 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 15:59:35,839 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:59:35,839 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 15:59:35,839 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-13 15:59:35,839 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:59:35,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:59:35,840 INFO L82 PathProgramCache]: Analyzing trace with hash -1276642330, now seen corresponding path program 1 times [2021-08-13 15:59:35,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:59:35,840 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511190080] [2021-08-13 15:59:35,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:59:35,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:59:35,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:59:35,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:59:35,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:59:35,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:59:35,928 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 15:59:35,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 15:59:35,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:59:35,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:59:35,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:59:35,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:59:35,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:59:35,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:59:35,973 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 15:59:35,973 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:59:35,974 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511190080] [2021-08-13 15:59:35,974 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511190080] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:59:35,974 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:59:35,974 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-13 15:59:35,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5654842] [2021-08-13 15:59:35,974 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-13 15:59:35,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:59:35,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-13 15:59:35,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-13 15:59:35,977 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 84 [2021-08-13 15:59:35,977 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 103 transitions, 385 flow. Second operand has 6 states, 6 states have (on average 72.16666666666667) internal successors, (433), 6 states have internal predecessors, (433), 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 15:59:35,977 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:59:35,977 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 84 [2021-08-13 15:59:35,978 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:59:36,150 INFO L129 PetriNetUnfolder]: 183/536 cut-off events. [2021-08-13 15:59:36,150 INFO L130 PetriNetUnfolder]: For 195/240 co-relation queries the response was YES. [2021-08-13 15:59:36,154 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1259 conditions, 536 events. 183/536 cut-off events. For 195/240 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 3429 event pairs, 22 based on Foata normal form. 4/531 useless extension candidates. Maximal degree in co-relation 1221. Up to 111 conditions per place. [2021-08-13 15:59:36,155 INFO L132 encePairwiseOnDemand]: 77/84 looper letters, 8 selfloop transitions, 3 changer transitions 100/170 dead transitions. [2021-08-13 15:59:36,156 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 170 transitions, 933 flow [2021-08-13 15:59:36,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-13 15:59:36,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-08-13 15:59:36,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 671 transitions. [2021-08-13 15:59:36,158 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8875661375661376 [2021-08-13 15:59:36,158 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 671 transitions. [2021-08-13 15:59:36,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 671 transitions. [2021-08-13 15:59:36,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:59:36,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 671 transitions. [2021-08-13 15:59:36,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 74.55555555555556) internal successors, (671), 9 states have internal predecessors, (671), 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 15:59:36,161 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 84.0) internal successors, (840), 10 states have internal predecessors, (840), 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 15:59:36,162 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 84.0) internal successors, (840), 10 states have internal predecessors, (840), 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 15:59:36,162 INFO L348 CegarLoopForPetriNet]: 78 programPoint places, 28 predicate places. [2021-08-13 15:59:36,162 INFO L482 AbstractCegarLoop]: Abstraction has has 106 places, 170 transitions, 933 flow [2021-08-13 15:59:36,162 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 72.16666666666667) internal successors, (433), 6 states have internal predecessors, (433), 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 15:59:36,162 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:59:36,163 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] [2021-08-13 15:59:36,163 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-13 15:59:36,163 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:59:36,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:59:36,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1170264346, now seen corresponding path program 1 times [2021-08-13 15:59:36,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:59:36,164 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700389778] [2021-08-13 15:59:36,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:59:36,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:59:36,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:59:36,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:59:36,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:59:36,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:59:36,232 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 15:59:36,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 15:59:36,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:59:36,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:59:36,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:59:36,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:59:36,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:59:36,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:59:36,298 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 15:59:36,298 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:59:36,298 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700389778] [2021-08-13 15:59:36,299 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700389778] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:59:36,299 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:59:36,299 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-13 15:59:36,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157354158] [2021-08-13 15:59:36,299 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-13 15:59:36,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:59:36,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-13 15:59:36,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-13 15:59:36,304 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 84 [2021-08-13 15:59:36,304 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 170 transitions, 933 flow. Second operand has 6 states, 6 states have (on average 72.33333333333333) internal successors, (434), 6 states have internal predecessors, (434), 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 15:59:36,304 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:59:36,304 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 84 [2021-08-13 15:59:36,304 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:59:36,523 INFO L129 PetriNetUnfolder]: 177/689 cut-off events. [2021-08-13 15:59:36,523 INFO L130 PetriNetUnfolder]: For 426/664 co-relation queries the response was YES. [2021-08-13 15:59:36,527 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1903 conditions, 689 events. 177/689 cut-off events. For 426/664 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 5384 event pairs, 0 based on Foata normal form. 11/693 useless extension candidates. Maximal degree in co-relation 1862. Up to 168 conditions per place. [2021-08-13 15:59:36,528 INFO L132 encePairwiseOnDemand]: 78/84 looper letters, 12 selfloop transitions, 3 changer transitions 158/231 dead transitions. [2021-08-13 15:59:36,529 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 231 transitions, 1733 flow [2021-08-13 15:59:36,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-13 15:59:36,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-08-13 15:59:36,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 665 transitions. [2021-08-13 15:59:36,531 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8796296296296297 [2021-08-13 15:59:36,531 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 665 transitions. [2021-08-13 15:59:36,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 665 transitions. [2021-08-13 15:59:36,531 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:59:36,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 665 transitions. [2021-08-13 15:59:36,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 73.88888888888889) internal successors, (665), 9 states have internal predecessors, (665), 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 15:59:36,535 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 84.0) internal successors, (840), 10 states have internal predecessors, (840), 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 15:59:36,535 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 84.0) internal successors, (840), 10 states have internal predecessors, (840), 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 15:59:36,535 INFO L348 CegarLoopForPetriNet]: 78 programPoint places, 36 predicate places. [2021-08-13 15:59:36,535 INFO L482 AbstractCegarLoop]: Abstraction has has 114 places, 231 transitions, 1733 flow [2021-08-13 15:59:36,535 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 72.33333333333333) internal successors, (434), 6 states have internal predecessors, (434), 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 15:59:36,536 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:59:36,536 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] [2021-08-13 15:59:36,536 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-13 15:59:36,536 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:59:36,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:59:36,539 INFO L82 PathProgramCache]: Analyzing trace with hash 2073668923, now seen corresponding path program 1 times [2021-08-13 15:59:36,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:59:36,540 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840286928] [2021-08-13 15:59:36,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:59:36,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:59:36,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:59:36,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:59:36,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:59:36,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:59:36,637 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-13 15:59:36,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 15:59:36,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:59:36,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 15:59:36,673 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-13 15:59:36,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:59:36,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:59:36,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:59:36,690 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 15:59:36,691 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:59:36,691 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840286928] [2021-08-13 15:59:36,691 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840286928] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:59:36,691 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:59:36,691 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-13 15:59:36,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579261391] [2021-08-13 15:59:36,693 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-13 15:59:36,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:59:36,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-13 15:59:36,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-13 15:59:36,694 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 84 [2021-08-13 15:59:36,695 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 231 transitions, 1733 flow. Second operand has 6 states, 6 states have (on average 71.16666666666667) internal successors, (427), 6 states have internal predecessors, (427), 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 15:59:36,695 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:59:36,695 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 84 [2021-08-13 15:59:36,695 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:59:37,081 INFO L129 PetriNetUnfolder]: 638/1823 cut-off events. [2021-08-13 15:59:37,081 INFO L130 PetriNetUnfolder]: For 685/839 co-relation queries the response was YES. [2021-08-13 15:59:37,089 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4494 conditions, 1823 events. 638/1823 cut-off events. For 685/839 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 16380 event pairs, 23 based on Foata normal form. 5/1692 useless extension candidates. Maximal degree in co-relation 4450. Up to 449 conditions per place. [2021-08-13 15:59:37,094 INFO L132 encePairwiseOnDemand]: 74/84 looper letters, 10 selfloop transitions, 6 changer transitions 117/226 dead transitions. [2021-08-13 15:59:37,094 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 226 transitions, 1525 flow [2021-08-13 15:59:37,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 15:59:37,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 15:59:37,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 743 transitions. [2021-08-13 15:59:37,096 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8845238095238095 [2021-08-13 15:59:37,097 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 743 transitions. [2021-08-13 15:59:37,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 743 transitions. [2021-08-13 15:59:37,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:59:37,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 743 transitions. [2021-08-13 15:59:37,099 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 74.3) internal successors, (743), 10 states have internal predecessors, (743), 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 15:59:37,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 84.0) internal successors, (924), 11 states have internal predecessors, (924), 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 15:59:37,101 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 84.0) internal successors, (924), 11 states have internal predecessors, (924), 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 15:59:37,101 INFO L348 CegarLoopForPetriNet]: 78 programPoint places, 45 predicate places. [2021-08-13 15:59:37,101 INFO L482 AbstractCegarLoop]: Abstraction has has 123 places, 226 transitions, 1525 flow [2021-08-13 15:59:37,101 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 71.16666666666667) internal successors, (427), 6 states have internal predecessors, (427), 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 15:59:37,102 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:59:37,102 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 15:59:37,102 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-13 15:59:37,102 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:59:37,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:59:37,103 INFO L82 PathProgramCache]: Analyzing trace with hash -143809494, now seen corresponding path program 1 times [2021-08-13 15:59:37,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:59:37,103 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136988886] [2021-08-13 15:59:37,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:59:37,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:59:37,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:59:37,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:59:37,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:59:37,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:59:37,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:59:37,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:59:37,149 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-13 15:59:37,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 15:59:37,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:59:37,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 15:59:37,174 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-13 15:59:37,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:59:37,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:59:37,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:59:37,190 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 15:59:37,190 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:59:37,190 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136988886] [2021-08-13 15:59:37,191 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136988886] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:59:37,191 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:59:37,192 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 15:59:37,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85929137] [2021-08-13 15:59:37,193 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 15:59:37,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:59:37,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 15:59:37,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 15:59:37,194 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 84 [2021-08-13 15:59:37,195 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 226 transitions, 1525 flow. Second operand has 7 states, 7 states have (on average 71.14285714285714) internal successors, (498), 7 states have internal predecessors, (498), 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 15:59:37,195 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:59:37,195 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 84 [2021-08-13 15:59:37,195 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:59:37,547 INFO L129 PetriNetUnfolder]: 483/1245 cut-off events. [2021-08-13 15:59:37,547 INFO L130 PetriNetUnfolder]: For 288/759 co-relation queries the response was YES. [2021-08-13 15:59:37,550 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3514 conditions, 1245 events. 483/1245 cut-off events. For 288/759 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 9748 event pairs, 0 based on Foata normal form. 87/1233 useless extension candidates. Maximal degree in co-relation 3467. Up to 386 conditions per place. [2021-08-13 15:59:37,554 INFO L132 encePairwiseOnDemand]: 74/84 looper letters, 10 selfloop transitions, 9 changer transitions 117/199 dead transitions. [2021-08-13 15:59:37,554 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 199 transitions, 1213 flow [2021-08-13 15:59:37,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 15:59:37,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 15:59:37,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 967 transitions. [2021-08-13 15:59:37,557 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8855311355311355 [2021-08-13 15:59:37,557 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 967 transitions. [2021-08-13 15:59:37,557 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 967 transitions. [2021-08-13 15:59:37,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:59:37,558 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 967 transitions. [2021-08-13 15:59:37,561 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 74.38461538461539) internal successors, (967), 13 states have internal predecessors, (967), 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 15:59:37,563 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 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 15:59:37,563 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 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 15:59:37,564 INFO L348 CegarLoopForPetriNet]: 78 programPoint places, 51 predicate places. [2021-08-13 15:59:37,564 INFO L482 AbstractCegarLoop]: Abstraction has has 129 places, 199 transitions, 1213 flow [2021-08-13 15:59:37,564 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 71.14285714285714) internal successors, (498), 7 states have internal predecessors, (498), 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 15:59:37,564 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:59:37,564 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, 1] [2021-08-13 15:59:37,564 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-13 15:59:37,564 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:59:37,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:59:37,565 INFO L82 PathProgramCache]: Analyzing trace with hash -884316309, now seen corresponding path program 1 times [2021-08-13 15:59:37,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:59:37,565 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430013480] [2021-08-13 15:59:37,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:59:37,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:59:37,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:59:37,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:59:37,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:59:37,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:59:37,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:59:37,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:59:37,643 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 15:59:37,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 15:59:37,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:59:37,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:59:37,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:59:37,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:59:37,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:59:37,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:59:37,681 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 15:59:37,683 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:59:37,683 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430013480] [2021-08-13 15:59:37,684 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430013480] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:59:37,684 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:59:37,684 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 15:59:37,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876235797] [2021-08-13 15:59:37,684 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 15:59:37,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:59:37,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 15:59:37,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-13 15:59:37,686 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 84 [2021-08-13 15:59:37,686 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 199 transitions, 1213 flow. Second operand has 7 states, 7 states have (on average 71.42857142857143) internal successors, (500), 7 states have internal predecessors, (500), 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 15:59:37,687 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:59:37,687 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 84 [2021-08-13 15:59:37,687 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:59:37,980 INFO L129 PetriNetUnfolder]: 869/2260 cut-off events. [2021-08-13 15:59:37,980 INFO L130 PetriNetUnfolder]: For 1115/1396 co-relation queries the response was YES. [2021-08-13 15:59:37,989 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6621 conditions, 2260 events. 869/2260 cut-off events. For 1115/1396 co-relation queries the response was YES. Maximal size of possible extension queue 306. Compared 20351 event pairs, 0 based on Foata normal form. 19/2083 useless extension candidates. Maximal degree in co-relation 6570. Up to 692 conditions per place. [2021-08-13 15:59:37,993 INFO L132 encePairwiseOnDemand]: 78/84 looper letters, 17 selfloop transitions, 2 changer transitions 184/267 dead transitions. [2021-08-13 15:59:37,993 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 267 transitions, 2127 flow [2021-08-13 15:59:37,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-13 15:59:37,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-08-13 15:59:37,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 514 transitions. [2021-08-13 15:59:37,996 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8741496598639455 [2021-08-13 15:59:37,996 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 514 transitions. [2021-08-13 15:59:37,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 514 transitions. [2021-08-13 15:59:37,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:59:37,996 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 514 transitions. [2021-08-13 15:59:37,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 73.42857142857143) internal successors, (514), 7 states have internal predecessors, (514), 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 15:59:37,999 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 84.0) internal successors, (672), 8 states have internal predecessors, (672), 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 15:59:37,999 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 84.0) internal successors, (672), 8 states have internal predecessors, (672), 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 15:59:37,999 INFO L348 CegarLoopForPetriNet]: 78 programPoint places, 57 predicate places. [2021-08-13 15:59:37,999 INFO L482 AbstractCegarLoop]: Abstraction has has 135 places, 267 transitions, 2127 flow [2021-08-13 15:59:37,999 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 71.42857142857143) internal successors, (500), 7 states have internal predecessors, (500), 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 15:59:38,000 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 15:59:38,000 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, 1] [2021-08-13 15:59:38,000 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-13 15:59:38,000 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 15:59:38,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 15:59:38,000 INFO L82 PathProgramCache]: Analyzing trace with hash -420199091, now seen corresponding path program 2 times [2021-08-13 15:59:38,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 15:59:38,001 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064410300] [2021-08-13 15:59:38,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 15:59:38,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 15:59:38,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:59:38,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:59:38,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:59:38,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:59:38,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:59:38,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:59:38,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:59:38,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 15:59:38,105 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-13 15:59:38,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 15:59:38,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:59:38,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 15:59:38,169 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-13 15:59:38,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 15:59:38,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 15:59:38,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 15:59:38,181 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 15:59:38,181 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 15:59:38,181 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064410300] [2021-08-13 15:59:38,181 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064410300] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 15:59:38,181 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 15:59:38,181 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 15:59:38,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649958409] [2021-08-13 15:59:38,182 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 15:59:38,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 15:59:38,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 15:59:38,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 15:59:38,183 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 84 [2021-08-13 15:59:38,184 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 267 transitions, 2127 flow. Second operand has 8 states, 8 states have (on average 71.125) internal successors, (569), 8 states have internal predecessors, (569), 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 15:59:38,184 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 15:59:38,184 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 84 [2021-08-13 15:59:38,184 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 15:59:38,620 INFO L129 PetriNetUnfolder]: 767/1838 cut-off events. [2021-08-13 15:59:38,621 INFO L130 PetriNetUnfolder]: For 466/2189 co-relation queries the response was YES. [2021-08-13 15:59:38,627 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6330 conditions, 1838 events. 767/1838 cut-off events. For 466/2189 co-relation queries the response was YES. Maximal size of possible extension queue 313. Compared 16299 event pairs, 0 based on Foata normal form. 262/1925 useless extension candidates. Maximal degree in co-relation 6276. Up to 621 conditions per place. [2021-08-13 15:59:38,631 INFO L132 encePairwiseOnDemand]: 74/84 looper letters, 0 selfloop transitions, 0 changer transitions 193/193 dead transitions. [2021-08-13 15:59:38,631 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 193 transitions, 1391 flow [2021-08-13 15:59:38,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-13 15:59:38,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-08-13 15:59:38,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1176 transitions. [2021-08-13 15:59:38,634 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.875 [2021-08-13 15:59:38,634 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1176 transitions. [2021-08-13 15:59:38,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1176 transitions. [2021-08-13 15:59:38,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 15:59:38,635 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1176 transitions. [2021-08-13 15:59:38,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 73.5) internal successors, (1176), 16 states have internal predecessors, (1176), 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 15:59:38,639 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 84.0) internal successors, (1428), 17 states have internal predecessors, (1428), 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 15:59:38,640 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 84.0) internal successors, (1428), 17 states have internal predecessors, (1428), 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 15:59:38,640 INFO L348 CegarLoopForPetriNet]: 78 programPoint places, 55 predicate places. [2021-08-13 15:59:38,640 INFO L482 AbstractCegarLoop]: Abstraction has has 133 places, 193 transitions, 1391 flow [2021-08-13 15:59:38,640 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 71.125) internal successors, (569), 8 states have internal predecessors, (569), 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 15:59:38,640 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown