/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-12 21:11:50,943 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-12 21:11:50,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-12 21:11:50,987 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-12 21:11:50,988 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-12 21:11:50,991 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-12 21:11:50,993 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-12 21:11:50,999 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-12 21:11:51,001 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-12 21:11:51,005 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-12 21:11:51,006 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-12 21:11:51,007 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-12 21:11:51,007 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-12 21:11:51,009 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-12 21:11:51,010 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-12 21:11:51,011 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-12 21:11:51,014 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-12 21:11:51,015 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-12 21:11:51,021 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-12 21:11:51,022 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-12 21:11:51,024 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-12 21:11:51,025 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-12 21:11:51,025 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-12 21:11:51,026 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-12 21:11:51,028 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-08-12 21:11:51,034 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-12 21:11:51,035 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-12 21:11:51,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-12 21:11:51,036 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2021-08-12 21:11:51,054 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-12 21:11:51,055 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-12 21:11:51,056 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-12 21:11:51,056 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-12 21:11:51,056 INFO L138 SettingsManager]: * Use SBE=true [2021-08-12 21:11:51,056 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-12 21:11:51,057 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-12 21:11:51,057 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-12 21:11:51,057 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-12 21:11:51,057 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-12 21:11:51,057 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-12 21:11:51,058 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-12 21:11:51,058 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-12 21:11:51,058 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-12 21:11:51,058 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-12 21:11:51,058 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-12 21:11:51,058 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-12 21:11:51,059 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-12 21:11:51,059 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-12 21:11:51,059 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-12 21:11:51,059 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-12 21:11:51,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-12 21:11:51,059 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-12 21:11:51,060 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-12 21:11:51,060 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-12 21:11:51,060 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-12 21:11:51,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-12 21:11:51,060 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-12 21:11:51,060 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-12 21:11:51,061 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-12 21:11:51,061 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-12 21:11:51,365 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-12 21:11:51,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-12 21:11:51,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-12 21:11:51,395 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-12 21:11:51,397 INFO L275 PluginConnector]: CDTParser initialized [2021-08-12 21:11:51,398 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.oepc.i [2021-08-12 21:11:51,466 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab393dda4/eb526f598a084580abce63683bbbf3f2/FLAGb1e6fb126 [2021-08-12 21:11:51,950 INFO L306 CDTParser]: Found 1 translation units. [2021-08-12 21:11:51,951 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_tso.oepc.i [2021-08-12 21:11:51,983 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab393dda4/eb526f598a084580abce63683bbbf3f2/FLAGb1e6fb126 [2021-08-12 21:11:52,283 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab393dda4/eb526f598a084580abce63683bbbf3f2 [2021-08-12 21:11:52,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-12 21:11:52,289 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-12 21:11:52,292 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-12 21:11:52,292 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-12 21:11:52,295 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-12 21:11:52,296 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.08 09:11:52" (1/1) ... [2021-08-12 21:11:52,297 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37c64aac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 09:11:52, skipping insertion in model container [2021-08-12 21:11:52,298 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.08 09:11:52" (1/1) ... [2021-08-12 21:11:52,304 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-12 21:11:52,347 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-12 21:11:52,499 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/safe021_tso.oepc.i[950,963] [2021-08-12 21:11:52,707 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-12 21:11:52,714 INFO L203 MainTranslator]: Completed pre-run [2021-08-12 21:11:52,725 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/safe021_tso.oepc.i[950,963] [2021-08-12 21:11:52,760 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-12 21:11:52,833 INFO L208 MainTranslator]: Completed translation [2021-08-12 21:11:52,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 09:11:52 WrapperNode [2021-08-12 21:11:52,835 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-12 21:11:52,836 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-12 21:11:52,836 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-12 21:11:52,836 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-12 21:11:52,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 09:11:52" (1/1) ... [2021-08-12 21:11:52,871 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 09:11:52" (1/1) ... [2021-08-12 21:11:52,890 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-12 21:11:52,892 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-12 21:11:52,892 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-12 21:11:52,892 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-12 21:11:52,898 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 09:11:52" (1/1) ... [2021-08-12 21:11:52,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 09:11:52" (1/1) ... [2021-08-12 21:11:52,909 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 09:11:52" (1/1) ... [2021-08-12 21:11:52,909 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 09:11:52" (1/1) ... [2021-08-12 21:11:52,916 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 09:11:52" (1/1) ... [2021-08-12 21:11:52,917 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 09:11:52" (1/1) ... [2021-08-12 21:11:52,919 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 09:11:52" (1/1) ... [2021-08-12 21:11:52,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-12 21:11:52,921 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-12 21:11:52,921 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-12 21:11:52,921 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-12 21:11:52,922 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 09:11:52" (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 [2021-08-12 21:11:53,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-12 21:11:53,011 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-12 21:11:53,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-12 21:11:53,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-12 21:11:53,012 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-12 21:11:53,012 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-12 21:11:53,013 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-12 21:11:53,013 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-12 21:11:53,013 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-12 21:11:53,013 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-12 21:11:53,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-12 21:11:53,013 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-12 21:11:53,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-12 21:11:53,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-12 21:11:53,014 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-12 21:11:53,388 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-12 21:11:53,388 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-12 21:11:53,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.08 09:11:53 BoogieIcfgContainer [2021-08-12 21:11:53,390 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-12 21:11:53,392 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-12 21:11:53,392 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-12 21:11:53,394 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-12 21:11:53,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.08 09:11:52" (1/3) ... [2021-08-12 21:11:53,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5db76686 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.08 09:11:53, skipping insertion in model container [2021-08-12 21:11:53,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 09:11:52" (2/3) ... [2021-08-12 21:11:53,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5db76686 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.08 09:11:53, skipping insertion in model container [2021-08-12 21:11:53,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.08 09:11:53" (3/3) ... [2021-08-12 21:11:53,397 INFO L111 eAbstractionObserver]: Analyzing ICFG safe021_tso.oepc.i [2021-08-12 21:11:53,401 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-12 21:11:53,402 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-12 21:11:53,403 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-12 21:11:53,426 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,426 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,426 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,427 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,427 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,427 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,427 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,427 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,428 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,428 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,428 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,428 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,428 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,428 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,429 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,429 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,429 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,429 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,429 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,429 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,430 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,430 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,430 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,430 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,430 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,431 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,431 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,431 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,431 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,431 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,431 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,431 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,432 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,432 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,432 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,432 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,434 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,434 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,434 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,434 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,443 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,443 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,443 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,443 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,445 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,445 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,445 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,445 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:11:53,449 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-12 21:11:53,467 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-12 21:11:53,482 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-12 21:11:53,482 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-12 21:11:53,482 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-12 21:11:53,482 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-12 21:11:53,482 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-12 21:11:53,482 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-12 21:11:53,482 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-12 21:11:53,483 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-12 21:11:53,492 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 84 transitions, 183 flow [2021-08-12 21:11:53,523 INFO L129 PetriNetUnfolder]: 2/81 cut-off events. [2021-08-12 21:11:53,523 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-12 21:11:53,526 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. [2021-08-12 21:11:53,526 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 84 transitions, 183 flow [2021-08-12 21:11:53,529 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 69 transitions, 147 flow [2021-08-12 21:11:53,546 INFO L129 PetriNetUnfolder]: 1/68 cut-off events. [2021-08-12 21:11:53,546 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-12 21:11:53,546 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 21:11:53,547 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] [2021-08-12 21:11:53,547 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 21:11:53,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 21:11:53,552 INFO L82 PathProgramCache]: Analyzing trace with hash -1432389661, now seen corresponding path program 1 times [2021-08-12 21:11:53,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 21:11:53,559 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57069038] [2021-08-12 21:11:53,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 21:11:53,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 21:11:53,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:11:53,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:11:53,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:11:53,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 21:11:53,821 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-12 21:11:53,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-12 21:11:53,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:11:53,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-12 21:11:53,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:11:53,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-12 21:11:53,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:11:53,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:11:53,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 21:11:53,865 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 21:11:53,865 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57069038] [2021-08-12 21:11:53,866 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57069038] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 21:11:53,866 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 21:11:53,866 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-12 21:11:53,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585744298] [2021-08-12 21:11:53,873 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-12 21:11:53,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 21:11:53,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-12 21:11:53,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-12 21:11:53,890 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 84 [2021-08-12 21:11:53,897 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 69 transitions, 147 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) [2021-08-12 21:11:53,898 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 21:11:53,898 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 84 [2021-08-12 21:11:53,899 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 21:11:54,136 INFO L129 PetriNetUnfolder]: 24/139 cut-off events. [2021-08-12 21:11:54,137 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-12 21:11:54,138 INFO L84 FinitePrefix]: Finished finitePrefix Result has 210 conditions, 139 events. 24/139 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 388 event pairs, 5 based on Foata normal form. 6/142 useless extension candidates. Maximal degree in co-relation 179. Up to 31 conditions per place. [2021-08-12 21:11:54,139 INFO L132 encePairwiseOnDemand]: 76/84 looper letters, 8 selfloop transitions, 3 changer transitions 19/89 dead transitions. [2021-08-12 21:11:54,139 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 89 transitions, 247 flow [2021-08-12 21:11:54,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-12 21:11:54,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-08-12 21:11:54,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 673 transitions. [2021-08-12 21:11:54,161 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8902116402116402 [2021-08-12 21:11:54,162 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 673 transitions. [2021-08-12 21:11:54,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 673 transitions. [2021-08-12 21:11:54,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 21:11:54,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 673 transitions. [2021-08-12 21:11:54,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 74.77777777777777) internal successors, (673), 9 states have internal predecessors, (673), 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) [2021-08-12 21:11:54,177 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) [2021-08-12 21:11:54,178 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) [2021-08-12 21:11:54,178 INFO L348 CegarLoopForPetriNet]: 78 programPoint places, 8 predicate places. [2021-08-12 21:11:54,179 INFO L482 AbstractCegarLoop]: Abstraction has has 86 places, 89 transitions, 247 flow [2021-08-12 21:11:54,179 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) [2021-08-12 21:11:54,179 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 21:11:54,179 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] [2021-08-12 21:11:54,180 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-12 21:11:54,180 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 21:11:54,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 21:11:54,180 INFO L82 PathProgramCache]: Analyzing trace with hash -545670556, now seen corresponding path program 1 times [2021-08-12 21:11:54,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 21:11:54,181 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175528946] [2021-08-12 21:11:54,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 21:11:54,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 21:11:54,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:11:54,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:11:54,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:11:54,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 21:11:54,294 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-12 21:11:54,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-12 21:11:54,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:11:54,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-12 21:11:54,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:11:54,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-12 21:11:54,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:11:54,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:11:54,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 21:11:54,333 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 21:11:54,333 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175528946] [2021-08-12 21:11:54,333 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175528946] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 21:11:54,333 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 21:11:54,333 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-12 21:11:54,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648178983] [2021-08-12 21:11:54,334 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-12 21:11:54,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 21:11:54,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-12 21:11:54,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-12 21:11:54,337 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 84 [2021-08-12 21:11:54,338 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 89 transitions, 247 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) [2021-08-12 21:11:54,338 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 21:11:54,338 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 84 [2021-08-12 21:11:54,338 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 21:11:54,514 INFO L129 PetriNetUnfolder]: 80/295 cut-off events. [2021-08-12 21:11:54,514 INFO L130 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2021-08-12 21:11:54,519 INFO L84 FinitePrefix]: Finished finitePrefix Result has 554 conditions, 295 events. 80/295 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1566 event pairs, 12 based on Foata normal form. 6/295 useless extension candidates. Maximal degree in co-relation 520. Up to 66 conditions per place. [2021-08-12 21:11:54,521 INFO L132 encePairwiseOnDemand]: 78/84 looper letters, 6 selfloop transitions, 2 changer transitions 42/112 dead transitions. [2021-08-12 21:11:54,521 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 112 transitions, 409 flow [2021-08-12 21:11:54,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-12 21:11:54,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-08-12 21:11:54,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 668 transitions. [2021-08-12 21:11:54,524 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8835978835978836 [2021-08-12 21:11:54,524 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 668 transitions. [2021-08-12 21:11:54,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 668 transitions. [2021-08-12 21:11:54,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 21:11:54,524 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 668 transitions. [2021-08-12 21:11:54,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 74.22222222222223) internal successors, (668), 9 states have internal predecessors, (668), 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) [2021-08-12 21:11:54,528 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) [2021-08-12 21:11:54,529 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) [2021-08-12 21:11:54,529 INFO L348 CegarLoopForPetriNet]: 78 programPoint places, 16 predicate places. [2021-08-12 21:11:54,530 INFO L482 AbstractCegarLoop]: Abstraction has has 94 places, 112 transitions, 409 flow [2021-08-12 21:11:54,530 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) [2021-08-12 21:11:54,530 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 21:11:54,530 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] [2021-08-12 21:11:54,530 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-12 21:11:54,531 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 21:11:54,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 21:11:54,533 INFO L82 PathProgramCache]: Analyzing trace with hash -210120347, now seen corresponding path program 1 times [2021-08-12 21:11:54,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 21:11:54,534 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850781507] [2021-08-12 21:11:54,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 21:11:54,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 21:11:54,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:11:54,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:11:54,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:11:54,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 21:11:54,631 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-08-12 21:11:54,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 21:11:54,641 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-12 21:11:54,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-12 21:11:54,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:11:54,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-12 21:11:54,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:11:54,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-12 21:11:54,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:11:54,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:11:54,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 21:11:54,684 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 21:11:54,684 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850781507] [2021-08-12 21:11:54,684 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850781507] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 21:11:54,684 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 21:11:54,684 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-12 21:11:54,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931839367] [2021-08-12 21:11:54,685 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-12 21:11:54,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 21:11:54,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-12 21:11:54,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-12 21:11:54,687 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 84 [2021-08-12 21:11:54,688 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 112 transitions, 409 flow. Second operand has 7 states, 7 states have (on average 66.71428571428571) internal successors, (467), 7 states have internal predecessors, (467), 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) [2021-08-12 21:11:54,688 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 21:11:54,688 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 84 [2021-08-12 21:11:54,688 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 21:11:55,279 INFO L129 PetriNetUnfolder]: 597/1545 cut-off events. [2021-08-12 21:11:55,279 INFO L130 PetriNetUnfolder]: For 431/790 co-relation queries the response was YES. [2021-08-12 21:11:55,285 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3724 conditions, 1545 events. 597/1545 cut-off events. For 431/790 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 12224 event pairs, 15 based on Foata normal form. 20/1550 useless extension candidates. Maximal degree in co-relation 3684. Up to 327 conditions per place. [2021-08-12 21:11:55,291 INFO L132 encePairwiseOnDemand]: 71/84 looper letters, 28 selfloop transitions, 15 changer transitions 240/336 dead transitions. [2021-08-12 21:11:55,291 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 336 transitions, 2069 flow [2021-08-12 21:11:55,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-12 21:11:55,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-08-12 21:11:55,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1210 transitions. [2021-08-12 21:11:55,297 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8473389355742297 [2021-08-12 21:11:55,298 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1210 transitions. [2021-08-12 21:11:55,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1210 transitions. [2021-08-12 21:11:55,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 21:11:55,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1210 transitions. [2021-08-12 21:11:55,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 71.17647058823529) internal successors, (1210), 17 states have internal predecessors, (1210), 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) [2021-08-12 21:11:55,311 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 84.0) internal successors, (1512), 18 states have internal predecessors, (1512), 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) [2021-08-12 21:11:55,311 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 84.0) internal successors, (1512), 18 states have internal predecessors, (1512), 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) [2021-08-12 21:11:55,312 INFO L348 CegarLoopForPetriNet]: 78 programPoint places, 32 predicate places. [2021-08-12 21:11:55,312 INFO L482 AbstractCegarLoop]: Abstraction has has 110 places, 336 transitions, 2069 flow [2021-08-12 21:11:55,312 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 66.71428571428571) internal successors, (467), 7 states have internal predecessors, (467), 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) [2021-08-12 21:11:55,312 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 21:11:55,312 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] [2021-08-12 21:11:55,312 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-12 21:11:55,313 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 21:11:55,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 21:11:55,313 INFO L82 PathProgramCache]: Analyzing trace with hash 308071329, now seen corresponding path program 2 times [2021-08-12 21:11:55,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 21:11:55,314 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082894486] [2021-08-12 21:11:55,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 21:11:55,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 21:11:55,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:11:55,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:11:55,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:11:55,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 21:11:55,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:11:55,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 21:11:55,386 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-12 21:11:55,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-12 21:11:55,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:11:55,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-12 21:11:55,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:11:55,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-12 21:11:55,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:11:55,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:11:55,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 21:11:55,422 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 21:11:55,422 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082894486] [2021-08-12 21:11:55,423 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082894486] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 21:11:55,423 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 21:11:55,423 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-12 21:11:55,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333557456] [2021-08-12 21:11:55,423 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-12 21:11:55,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 21:11:55,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-12 21:11:55,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-12 21:11:55,425 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 84 [2021-08-12 21:11:55,426 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 336 transitions, 2069 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) [2021-08-12 21:11:55,426 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 21:11:55,426 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 84 [2021-08-12 21:11:55,426 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 21:11:55,835 INFO L129 PetriNetUnfolder]: 625/1702 cut-off events. [2021-08-12 21:11:55,835 INFO L130 PetriNetUnfolder]: For 1015/2052 co-relation queries the response was YES. [2021-08-12 21:11:55,842 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4844 conditions, 1702 events. 625/1702 cut-off events. For 1015/2052 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 14238 event pairs, 21 based on Foata normal form. 38/1724 useless extension candidates. Maximal degree in co-relation 4800. Up to 382 conditions per place. [2021-08-12 21:11:55,845 INFO L132 encePairwiseOnDemand]: 76/84 looper letters, 10 selfloop transitions, 6 changer transitions 291/369 dead transitions. [2021-08-12 21:11:55,845 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 369 transitions, 2759 flow [2021-08-12 21:11:55,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-12 21:11:55,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-12 21:11:55,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 943 transitions. [2021-08-12 21:11:55,849 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8635531135531136 [2021-08-12 21:11:55,850 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 943 transitions. [2021-08-12 21:11:55,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 943 transitions. [2021-08-12 21:11:55,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 21:11:55,850 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 943 transitions. [2021-08-12 21:11:55,853 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) [2021-08-12 21:11:55,855 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) [2021-08-12 21:11:55,855 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) [2021-08-12 21:11:55,855 INFO L348 CegarLoopForPetriNet]: 78 programPoint places, 44 predicate places. [2021-08-12 21:11:55,855 INFO L482 AbstractCegarLoop]: Abstraction has has 122 places, 369 transitions, 2759 flow [2021-08-12 21:11:55,856 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) [2021-08-12 21:11:55,856 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 21:11:55,856 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] [2021-08-12 21:11:55,856 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-12 21:11:55,859 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 21:11:55,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 21:11:55,860 INFO L82 PathProgramCache]: Analyzing trace with hash 413056235, now seen corresponding path program 1 times [2021-08-12 21:11:55,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 21:11:55,860 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606827907] [2021-08-12 21:11:55,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 21:11:55,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 21:11:55,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:11:55,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:11:55,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:11:55,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 21:11:55,953 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-12 21:11:55,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-12 21:11:55,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:11:55,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-12 21:11:55,982 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-12 21:11:55,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-12 21:11:55,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:11:55,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:11:55,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 21:11:55,994 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 21:11:55,994 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606827907] [2021-08-12 21:11:55,994 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606827907] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 21:11:55,994 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 21:11:55,994 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-12 21:11:55,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541283823] [2021-08-12 21:11:55,995 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-12 21:11:55,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 21:11:55,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-12 21:11:55,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-12 21:11:55,996 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 84 [2021-08-12 21:11:55,996 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 369 transitions, 2759 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) [2021-08-12 21:11:55,997 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 21:11:55,997 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 84 [2021-08-12 21:11:55,997 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 21:11:56,569 INFO L129 PetriNetUnfolder]: 1081/2881 cut-off events. [2021-08-12 21:11:56,570 INFO L130 PetriNetUnfolder]: For 1081/1180 co-relation queries the response was YES. [2021-08-12 21:11:56,587 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7137 conditions, 2881 events. 1081/2881 cut-off events. For 1081/1180 co-relation queries the response was YES. Maximal size of possible extension queue 283. Compared 26707 event pairs, 64 based on Foata normal form. 11/2674 useless extension candidates. Maximal degree in co-relation 7090. Up to 661 conditions per place. [2021-08-12 21:11:56,596 INFO L132 encePairwiseOnDemand]: 74/84 looper letters, 21 selfloop transitions, 15 changer transitions 138/298 dead transitions. [2021-08-12 21:11:56,596 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 298 transitions, 2041 flow [2021-08-12 21:11:56,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-12 21:11:56,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-12 21:11:56,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 743 transitions. [2021-08-12 21:11:56,599 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8845238095238095 [2021-08-12 21:11:56,599 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 743 transitions. [2021-08-12 21:11:56,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 743 transitions. [2021-08-12 21:11:56,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 21:11:56,599 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 743 transitions. [2021-08-12 21:11:56,603 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) [2021-08-12 21:11:56,604 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) [2021-08-12 21:11:56,605 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) [2021-08-12 21:11:56,606 INFO L348 CegarLoopForPetriNet]: 78 programPoint places, 53 predicate places. [2021-08-12 21:11:56,606 INFO L482 AbstractCegarLoop]: Abstraction has has 131 places, 298 transitions, 2041 flow [2021-08-12 21:11:56,607 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) [2021-08-12 21:11:56,609 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 21:11:56,609 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] [2021-08-12 21:11:56,610 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-12 21:11:56,610 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 21:11:56,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 21:11:56,611 INFO L82 PathProgramCache]: Analyzing trace with hash 2021429414, now seen corresponding path program 1 times [2021-08-12 21:11:56,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 21:11:56,612 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956760260] [2021-08-12 21:11:56,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 21:11:56,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 21:11:56,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:11:56,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:11:56,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:11:56,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 21:11:56,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:11:56,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 21:11:56,687 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-12 21:11:56,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-12 21:11:56,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:11:56,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-12 21:11:56,717 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-12 21:11:56,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-12 21:11:56,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:11:56,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:11:56,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 21:11:56,729 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 21:11:56,729 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956760260] [2021-08-12 21:11:56,730 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956760260] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 21:11:56,730 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 21:11:56,730 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-12 21:11:56,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218655833] [2021-08-12 21:11:56,730 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-12 21:11:56,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 21:11:56,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-12 21:11:56,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-12 21:11:56,732 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 84 [2021-08-12 21:11:56,733 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 298 transitions, 2041 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) [2021-08-12 21:11:56,733 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 21:11:56,733 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 84 [2021-08-12 21:11:56,733 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 21:11:57,227 INFO L129 PetriNetUnfolder]: 720/1999 cut-off events. [2021-08-12 21:11:57,227 INFO L130 PetriNetUnfolder]: For 462/1438 co-relation queries the response was YES. [2021-08-12 21:11:57,236 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5457 conditions, 1999 events. 720/1999 cut-off events. For 462/1438 co-relation queries the response was YES. Maximal size of possible extension queue 281. Compared 18089 event pairs, 9 based on Foata normal form. 193/2034 useless extension candidates. Maximal degree in co-relation 5407. Up to 556 conditions per place. [2021-08-12 21:11:57,241 INFO L132 encePairwiseOnDemand]: 74/84 looper letters, 22 selfloop transitions, 36 changer transitions 107/233 dead transitions. [2021-08-12 21:11:57,241 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 233 transitions, 1463 flow [2021-08-12 21:11:57,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-12 21:11:57,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-12 21:11:57,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 967 transitions. [2021-08-12 21:11:57,244 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8855311355311355 [2021-08-12 21:11:57,244 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 967 transitions. [2021-08-12 21:11:57,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 967 transitions. [2021-08-12 21:11:57,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 21:11:57,245 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 967 transitions. [2021-08-12 21:11:57,247 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) [2021-08-12 21:11:57,249 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) [2021-08-12 21:11:57,250 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) [2021-08-12 21:11:57,250 INFO L348 CegarLoopForPetriNet]: 78 programPoint places, 59 predicate places. [2021-08-12 21:11:57,250 INFO L482 AbstractCegarLoop]: Abstraction has has 137 places, 233 transitions, 1463 flow [2021-08-12 21:11:57,250 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) [2021-08-12 21:11:57,250 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 21:11:57,250 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] [2021-08-12 21:11:57,251 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-12 21:11:57,251 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 21:11:57,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 21:11:57,251 INFO L82 PathProgramCache]: Analyzing trace with hash 217962049, now seen corresponding path program 1 times [2021-08-12 21:11:57,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 21:11:57,252 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118765845] [2021-08-12 21:11:57,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 21:11:57,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 21:11:57,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:11:57,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:11:57,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:11:57,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 21:11:57,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:11:57,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 21:11:57,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:11:57,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 21:11:57,325 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-12 21:11:57,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-12 21:11:57,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:11:57,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-12 21:11:57,354 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-12 21:11:57,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-12 21:11:57,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:11:57,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:11:57,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 21:11:57,367 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 21:11:57,367 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118765845] [2021-08-12 21:11:57,367 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118765845] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 21:11:57,367 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 21:11:57,367 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-12 21:11:57,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633343545] [2021-08-12 21:11:57,367 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-12 21:11:57,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 21:11:57,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-12 21:11:57,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-12 21:11:57,369 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 84 [2021-08-12 21:11:57,370 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 233 transitions, 1463 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) [2021-08-12 21:11:57,370 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 21:11:57,370 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 84 [2021-08-12 21:11:57,370 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 21:11:57,902 INFO L129 PetriNetUnfolder]: 648/1760 cut-off events. [2021-08-12 21:11:57,903 INFO L130 PetriNetUnfolder]: For 512/2012 co-relation queries the response was YES. [2021-08-12 21:11:57,912 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5797 conditions, 1760 events. 648/1760 cut-off events. For 512/2012 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 16114 event pairs, 1 based on Foata normal form. 236/1858 useless extension candidates. Maximal degree in co-relation 5744. Up to 518 conditions per place. [2021-08-12 21:11:57,916 INFO L132 encePairwiseOnDemand]: 74/84 looper letters, 19 selfloop transitions, 40 changer transitions 71/194 dead transitions. [2021-08-12 21:11:57,916 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 194 transitions, 1297 flow [2021-08-12 21:11:57,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-12 21:11:57,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-08-12 21:11:57,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1176 transitions. [2021-08-12 21:11:57,920 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.875 [2021-08-12 21:11:57,920 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1176 transitions. [2021-08-12 21:11:57,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1176 transitions. [2021-08-12 21:11:57,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 21:11:57,921 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1176 transitions. [2021-08-12 21:11:57,924 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) [2021-08-12 21:11:57,926 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) [2021-08-12 21:11:57,927 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) [2021-08-12 21:11:57,927 INFO L348 CegarLoopForPetriNet]: 78 programPoint places, 53 predicate places. [2021-08-12 21:11:57,927 INFO L482 AbstractCegarLoop]: Abstraction has has 131 places, 194 transitions, 1297 flow [2021-08-12 21:11:57,928 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) [2021-08-12 21:11:57,928 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 21:11:57,928 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, 1, 1] [2021-08-12 21:11:57,928 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-12 21:11:57,928 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 21:11:57,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 21:11:57,929 INFO L82 PathProgramCache]: Analyzing trace with hash 970767863, now seen corresponding path program 1 times [2021-08-12 21:11:57,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 21:11:57,929 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685240501] [2021-08-12 21:11:57,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 21:11:57,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 21:11:57,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:11:57,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:11:57,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:11:57,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 21:11:57,994 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-08-12 21:11:57,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 21:11:58,006 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-12 21:11:58,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-12 21:11:58,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:11:58,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-12 21:11:58,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:11:58,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-12 21:11:58,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:11:58,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:11:58,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 21:11:58,050 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 21:11:58,050 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685240501] [2021-08-12 21:11:58,050 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685240501] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 21:11:58,051 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 21:11:58,051 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-12 21:11:58,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310937798] [2021-08-12 21:11:58,052 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-12 21:11:58,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 21:11:58,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-12 21:11:58,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-12 21:11:58,054 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 84 [2021-08-12 21:11:58,054 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 194 transitions, 1297 flow. Second operand has 7 states, 7 states have (on average 67.14285714285714) internal successors, (470), 7 states have internal predecessors, (470), 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) [2021-08-12 21:11:58,054 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 21:11:58,054 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 84 [2021-08-12 21:11:58,055 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 21:11:58,393 INFO L129 PetriNetUnfolder]: 865/2271 cut-off events. [2021-08-12 21:11:58,393 INFO L130 PetriNetUnfolder]: For 875/1696 co-relation queries the response was YES. [2021-08-12 21:11:58,406 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7790 conditions, 2271 events. 865/2271 cut-off events. For 875/1696 co-relation queries the response was YES. Maximal size of possible extension queue 380. Compared 21831 event pairs, 0 based on Foata normal form. 13/2083 useless extension candidates. Maximal degree in co-relation 7731. Up to 687 conditions per place. [2021-08-12 21:11:58,411 INFO L132 encePairwiseOnDemand]: 72/84 looper letters, 0 selfloop transitions, 0 changer transitions 216/216 dead transitions. [2021-08-12 21:11:58,411 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 216 transitions, 1563 flow [2021-08-12 21:11:58,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-12 21:11:58,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-12 21:11:58,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 549 transitions. [2021-08-12 21:11:58,413 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8169642857142857 [2021-08-12 21:11:58,413 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 549 transitions. [2021-08-12 21:11:58,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 549 transitions. [2021-08-12 21:11:58,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 21:11:58,414 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 549 transitions. [2021-08-12 21:11:58,415 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 68.625) internal successors, (549), 8 states have internal predecessors, (549), 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) [2021-08-12 21:11:58,417 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 84.0) internal successors, (756), 9 states have internal predecessors, (756), 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) [2021-08-12 21:11:58,417 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 84.0) internal successors, (756), 9 states have internal predecessors, (756), 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) [2021-08-12 21:11:58,417 INFO L348 CegarLoopForPetriNet]: 78 programPoint places, 58 predicate places. [2021-08-12 21:11:58,417 INFO L482 AbstractCegarLoop]: Abstraction has has 136 places, 216 transitions, 1563 flow [2021-08-12 21:11:58,417 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 67.14285714285714) internal successors, (470), 7 states have internal predecessors, (470), 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) [2021-08-12 21:11:58,418 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-12 21:11:59,808 INFO L742 CegarLoopForPetriNet]: Computed Owicki-Gries annotation of size 134177 in 1362816681ns [2021-08-12 21:11:59,819 INFO L113 kiGriesValidityCheck]: 14#(or (and (not v_np70_1) (not v_np22_1) (not v_np37_1) (not v_np45_1) (not v_np58_1) (not v_np42_1) (not v_np53_1) (not v_np60_1) (not v_np69_1) (not v_np57_1) (not v_np47_1) (not v_np75_1) (not v_np8_1) (not v_np38_1) (= ~z~0 1) (not v_np36_1) (not v_np1_1) (not v_np11_1) (not v_np14_1) (or (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= 2 ~x~0))) v_np77_1 (not v_np6_1) (not v_np34_1) (not v_np50_1) (not v_np54_1) (not v_np4_1) (not v_np12_1) (not v_np66_1) (not v_np21_1) (not v_np51_1) (not v_np40_1) (<= ~__unbuffered_cnt~0 1) (not v_np65_1) (not v_np19_1) (not v_np29_1) (not v_np44_1) (not v_np26_1) (not v_np33_1) (not v_np64_1) (not v_np76_1) (not v_np56_1) (not v_np68_1) (not v_np0_1) (not v_np30_1) (< 0 (+ (div ~main$tmp_guard0~0 256) 1)) (not v_np62_1) (not v_np25_1) (not v_np67_1) (not v_np23_1) (not v_np31_1) (not v_np20_1) (not v_np71_1) (not v_np32_1) (not v_np39_1) (not v_np5_1) (not v_np7_1) (= ~__unbuffered_p2_EAX~0 0) (not v_np52_1) (not v_np27_1) (not v_np9_1) (= ~y~0 0) (not v_np43_1) (not v_np61_1) v_np13_1 v_np74_1 (not v_np24_1) v_np72_1 (not v_np10_1) (not v_np63_1) (not v_np16_1) (not v_np15_1) (not v_np2_1) (not v_np17_1) (not v_np49_1) (not v_np18_1) (not v_np46_1) v_np3_1 (not v_np73_1) (not v_np28_1) (not v_np41_1) (not v_np48_1) (not v_np55_1) (not v_np59_1) (not v_np35_1) (<= ~main$tmp_guard0~0 0)) (and (not v_np70_1) (not v_np22_1) (not v_np37_1) (not v_np45_1) (not v_np58_1) (not v_np42_1) (not v_np53_1) (not v_np60_1) (not v_np69_1) (not v_np3_1) (not v_np57_1) (not v_np47_1) (not v_np75_1) (not v_np8_1) (not v_np38_1) (not v_np36_1) (not v_np1_1) (not v_np11_1) (not v_np14_1) (or (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= 2 ~x~0))) v_np77_1 (not v_np6_1) (not v_np34_1) (not v_np50_1) (not v_np54_1) v_np52_1 (not v_np4_1) (not v_np12_1) (not v_np66_1) (not v_np21_1) (not v_np51_1) (not v_np40_1) (not v_np65_1) (not v_np19_1) (not v_np29_1) (not v_np44_1) (not v_np26_1) (not v_np33_1) (= ~x~0 0) (not v_np64_1) (not v_np76_1) (not v_np56_1) (not v_np68_1) (not v_np0_1) (not v_np30_1) (< 0 (+ (div ~main$tmp_guard0~0 256) 1)) (not v_np62_1) (= ~__unbuffered_cnt~0 0) (not v_np25_1) (not v_np67_1) (not v_np23_1) (not v_np31_1) (not v_np20_1) (not v_np71_1) (not v_np32_1) (not v_np39_1) (not v_np5_1) (not v_np7_1) (= ~__unbuffered_p2_EAX~0 0) (not v_np27_1) (not v_np9_1) (= ~y~0 0) (not v_np43_1) (not v_np61_1) v_np13_1 v_np74_1 (not v_np24_1) v_np72_1 (not v_np10_1) (not v_np63_1) (not v_np16_1) (not v_np15_1) (not v_np2_1) (not v_np17_1) (not v_np49_1) (not v_np18_1) (not v_np46_1) (not v_np73_1) (not v_np28_1) (not v_np41_1) (not v_np48_1) (not v_np55_1) (not v_np59_1) (not v_np35_1) (<= ~main$tmp_guard0~0 0)) (and (not v_np70_1) (not v_np22_1) (not v_np37_1) (not v_np45_1) (not v_np58_1) (not v_np42_1) (not v_np53_1) (not v_np60_1) (not v_np69_1) (not v_np3_1) (not v_np57_1) (not v_np47_1) (not v_np75_1) (not v_np8_1) (not v_np38_1) (= ~z~0 1) (not v_np36_1) (not v_np1_1) (not v_np11_1) (not v_np14_1) (or (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= 2 ~x~0))) v_np77_1 (not v_np6_1) (not v_np34_1) (not v_np50_1) (not v_np54_1) (not v_np4_1) (not v_np12_1) (not v_np66_1) (not v_np21_1) (not v_np51_1) (not v_np40_1) (<= ~__unbuffered_cnt~0 1) (not v_np65_1) (not v_np19_1) (not v_np29_1) (not v_np44_1) (not v_np26_1) (not v_np33_1) (not v_np64_1) (not v_np76_1) (not v_np56_1) (not v_np68_1) (not v_np0_1) (not v_np30_1) (< 0 (+ (div ~main$tmp_guard0~0 256) 1)) (not v_np62_1) (not v_np25_1) (not v_np67_1) (not v_np23_1) (not v_np31_1) (not v_np20_1) (not v_np71_1) (not v_np32_1) (not v_np39_1) (not v_np5_1) (not v_np7_1) (= ~__unbuffered_p2_EAX~0 0) (not v_np52_1) (not v_np27_1) (not v_np9_1) (= ~y~0 0) (not v_np43_1) (not v_np61_1) v_np13_1 v_np74_1 (not v_np24_1) v_np72_1 (not v_np10_1) (not v_np16_1) (not v_np15_1) (not v_np2_1) (not v_np17_1) (not v_np49_1) (not v_np18_1) (not v_np46_1) (not v_np73_1) (not v_np28_1) (not v_np41_1) (not v_np48_1) (not v_np55_1) (not v_np59_1) v_np63_1 (not v_np35_1) (<= ~main$tmp_guard0~0 0)) (and (not v_np70_1) (not v_np22_1) (not v_np37_1) (not v_np45_1) (not v_np58_1) (not v_np42_1) (not v_np53_1) (not v_np69_1) (not v_np3_1) (not v_np57_1) (not v_np47_1) (not v_np75_1) (not v_np8_1) (not v_np38_1) (not v_np36_1) (not v_np1_1) (not v_np11_1) (not v_np14_1) (or (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= 2 ~x~0))) v_np77_1 (not v_np6_1) (not v_np34_1) (not v_np50_1) (not v_np54_1) (not v_np4_1) (not v_np12_1) (not v_np66_1) (not v_np21_1) (not v_np51_1) (not v_np40_1) (not v_np65_1) (not v_np19_1) (not v_np29_1) (not v_np44_1) v_np60_1 (not v_np26_1) (not v_np33_1) (= ~x~0 0) (not v_np64_1) (not v_np76_1) (not v_np56_1) (not v_np68_1) (not v_np0_1) (not v_np30_1) (< 0 (+ (div ~main$tmp_guard0~0 256) 1)) (not v_np62_1) (= ~__unbuffered_cnt~0 0) (not v_np25_1) (not v_np67_1) (not v_np23_1) (not v_np31_1) (not v_np20_1) (not v_np71_1) (not v_np32_1) (not v_np39_1) (not v_np5_1) (not v_np7_1) (= ~__unbuffered_p2_EAX~0 0) (not v_np52_1) (not v_np27_1) (not v_np9_1) (= ~y~0 0) (not v_np43_1) (not v_np61_1) v_np13_1 v_np74_1 (not v_np24_1) v_np72_1 (not v_np10_1) (not v_np63_1) (not v_np16_1) (not v_np15_1) (not v_np2_1) (not v_np17_1) (not v_np49_1) (not v_np18_1) (not v_np46_1) (not v_np73_1) (not v_np28_1) (not v_np41_1) (not v_np48_1) (not v_np55_1) (not v_np59_1) (not v_np35_1) (<= ~main$tmp_guard0~0 0)) (and (not v_np70_1) (not v_np22_1) (not v_np37_1) (not v_np45_1) (not v_np58_1) (not v_np42_1) (not v_np53_1) (not v_np60_1) (not v_np69_1) (not v_np3_1) (not v_np57_1) (not v_np47_1) (not v_np75_1) (not v_np8_1) (not v_np38_1) (= ~z~0 1) (not v_np36_1) (or (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= 2 ~x~0))) (not v_np1_1) (not v_np11_1) (not v_np14_1) v_np77_1 (not v_np6_1) (not v_np34_1) (not v_np50_1) (not v_np54_1) (not v_np4_1) (not v_np12_1) (not v_np66_1) (not v_np21_1) (not v_np51_1) (not v_np40_1) (not v_np65_1) (not v_np19_1) (not v_np29_1) (not v_np44_1) (not v_np26_1) (not v_np33_1) (not v_np64_1) (not v_np76_1) (not v_np56_1) (not v_np68_1) (not v_np0_1) (not v_np30_1) (< 0 (+ (div ~main$tmp_guard0~0 256) 1)) (not v_np62_1) (= ~__unbuffered_cnt~0 0) (not v_np25_1) (not v_np67_1) (not v_np23_1) (not v_np31_1) (not v_np20_1) (not v_np71_1) (not v_np39_1) (not v_np5_1) (not v_np7_1) (= ~__unbuffered_p2_EAX~0 0) (not v_np52_1) (not v_np27_1) (not v_np9_1) (= ~y~0 0) v_np32_1 (not v_np43_1) (not v_np61_1) v_np13_1 v_np74_1 (not v_np24_1) v_np72_1 (not v_np10_1) (not v_np63_1) (not v_np16_1) (not v_np15_1) (not v_np2_1) (not v_np17_1) (not v_np49_1) (not v_np18_1) (not v_np46_1) (not v_np73_1) (not v_np28_1) (not v_np41_1) (not v_np48_1) (not v_np55_1) (not v_np59_1) (not v_np35_1) (<= ~main$tmp_guard0~0 0)) (and (not v_np70_1) (not v_np22_1) (not v_np37_1) (not v_np45_1) (not v_np58_1) (not v_np42_1) (not v_np53_1) (not v_np60_1) (not v_np69_1) (not v_np3_1) (not v_np57_1) (not v_np47_1) (not v_np75_1) (not v_np8_1) (not v_np38_1) (= ~z~0 1) (not v_np36_1) (not v_np1_1) (not v_np11_1) (not v_np14_1) (or (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= 2 ~x~0))) v_np77_1 (not v_np6_1) (not v_np34_1) (not v_np50_1) (not v_np54_1) (not v_np4_1) (not v_np12_1) v_np19_1 (not v_np66_1) (not v_np21_1) (not v_np51_1) (not v_np40_1) (not v_np65_1) (not v_np29_1) (not v_np44_1) (not v_np26_1) (not v_np33_1) (= ~x~0 0) (not v_np64_1) (not v_np76_1) (not v_np56_1) (not v_np68_1) (not v_np0_1) (not v_np30_1) (< 0 (+ (div ~main$tmp_guard0~0 256) 1)) (not v_np62_1) (= ~__unbuffered_cnt~0 0) (not v_np25_1) (not v_np67_1) (not v_np23_1) (not v_np31_1) (not v_np20_1) (not v_np71_1) (not v_np32_1) (not v_np39_1) (not v_np5_1) (not v_np7_1) (= ~__unbuffered_p2_EAX~0 0) (not v_np52_1) (not v_np27_1) (not v_np9_1) (= ~y~0 0) (not v_np43_1) (not v_np61_1) v_np13_1 v_np74_1 (not v_np24_1) v_np72_1 (not v_np10_1) (not v_np63_1) (not v_np16_1) (not v_np15_1) (not v_np2_1) (not v_np17_1) (not v_np49_1) (not v_np18_1) (not v_np46_1) (not v_np73_1) (not v_np28_1) (not v_np41_1) (not v_np48_1) (not v_np55_1) (not v_np59_1) (not v_np35_1) (<= ~main$tmp_guard0~0 0)) (and (not v_np70_1) (not v_np22_1) (not v_np37_1) (not v_np45_1) (not v_np58_1) (not v_np42_1) (not v_np53_1) (not v_np60_1) (not v_np69_1) (not v_np3_1) (not v_np57_1) (not v_np47_1) (not v_np75_1) (not v_np8_1) (not v_np38_1) (= ~z~0 1) v_np35_1 (not v_np36_1) (not v_np1_1) (not v_np11_1) (not v_np14_1) (or (not (= ~__unbuffered_p2_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= 2 ~x~0))) v_np77_1 (not v_np6_1) (not v_np34_1) (not v_np50_1) (not v_np54_1) (not v_np4_1) (not v_np12_1) (not v_np66_1) (not v_np21_1) (not v_np51_1) (not v_np40_1) (<= ~__unbuffered_cnt~0 1) (not v_np65_1) (not v_np19_1) (not v_np29_1) (not v_np44_1) (not v_np26_1) (not v_np33_1) (not v_np64_1) (not v_np76_1) (not v_np56_1) (not v_np68_1) (not v_np0_1) (not v_np30_1) (< 0 (+ (div ~main$tmp_guard0~0 256) 1)) (not v_np62_1) (not v_np25_1) (not v_np67_1) (not v_np23_1) (not v_np31_1) (not v_np20_1) (not v_np71_1) (not v_np32_1) (not v_np39_1) (not v_np5_1) (not v_np7_1) (= ~__unbuffered_p2_EAX~0 0) (not v_np52_1) (not v_np27_1) (not v_np9_1) (= ~y~0 0) (not v_np43_1) (not v_np61_1) v_np13_1 v_np74_1 (not v_np24_1) v_np72_1 (not v_np10_1) (not v_np63_1) (not v_np16_1) (not v_np15_1) (not v_np2_1) (not v_np17_1) (not v_np49_1) (not v_np18_1) (not v_np46_1) (not v_np73_1) (not v_np28_1) (not v_np41_1) (not v_np48_1) (not v_np55_1) (not v_np59_1) (<= ~main$tmp_guard0~0 0))) [2021-08-12 21:11:59,865 INFO L748 CegarLoopForPetriNet]: Checked inductivity and non-interference of Owicki-Gries annotation in 84612283ns [2021-08-12 21:11:59,866 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Invalid Owicki-Gries annotation at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNet.computeOwickiGries(CegarLoopForPetriNet.java:752) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:111) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:63) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:230) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:161) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:146) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-08-12 21:11:59,871 INFO L168 Benchmark]: Toolchain (without parser) took 7581.59 ms. Allocated memory was 185.6 MB in the beginning and 506.5 MB in the end (delta: 320.9 MB). Free memory was 149.0 MB in the beginning and 310.2 MB in the end (delta: -161.1 MB). Peak memory consumption was 160.2 MB. Max. memory is 8.0 GB. [2021-08-12 21:11:59,873 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 185.6 MB. Free memory was 166.9 MB in the beginning and 166.6 MB in the end (delta: 216.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-12 21:11:59,873 INFO L168 Benchmark]: CACSL2BoogieTranslator took 543.47 ms. Allocated memory is still 185.6 MB. Free memory was 148.8 MB in the beginning and 149.2 MB in the end (delta: -379.1 kB). Peak memory consumption was 17.7 MB. Max. memory is 8.0 GB. [2021-08-12 21:11:59,875 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.72 ms. Allocated memory is still 185.6 MB. Free memory was 149.2 MB in the beginning and 147.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-12 21:11:59,877 INFO L168 Benchmark]: Boogie Preprocessor took 29.13 ms. Allocated memory is still 185.6 MB. Free memory was 147.1 MB in the beginning and 146.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-12 21:11:59,878 INFO L168 Benchmark]: RCFGBuilder took 468.93 ms. Allocated memory is still 185.6 MB. Free memory was 145.5 MB in the beginning and 121.9 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2021-08-12 21:11:59,879 INFO L168 Benchmark]: TraceAbstraction took 6478.31 ms. Allocated memory was 185.6 MB in the beginning and 506.5 MB in the end (delta: 320.9 MB). Free memory was 121.4 MB in the beginning and 310.2 MB in the end (delta: -188.8 MB). Peak memory consumption was 132.6 MB. Max. memory is 8.0 GB. [2021-08-12 21:11:59,885 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 185.6 MB. Free memory was 166.9 MB in the beginning and 166.6 MB in the end (delta: 216.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 543.47 ms. Allocated memory is still 185.6 MB. Free memory was 148.8 MB in the beginning and 149.2 MB in the end (delta: -379.1 kB). Peak memory consumption was 17.7 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 54.72 ms. Allocated memory is still 185.6 MB. Free memory was 149.2 MB in the beginning and 147.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 29.13 ms. Allocated memory is still 185.6 MB. Free memory was 147.1 MB in the beginning and 146.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 468.93 ms. Allocated memory is still 185.6 MB. Free memory was 145.5 MB in the beginning and 121.9 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6478.31 ms. Allocated memory was 185.6 MB in the beginning and 506.5 MB in the end (delta: 320.9 MB). Free memory was 121.4 MB in the beginning and 310.2 MB in the end (delta: -188.8 MB). Peak memory consumption was 132.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Invalid Owicki-Gries annotation de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Invalid Owicki-Gries annotation: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNet.computeOwickiGries(CegarLoopForPetriNet.java:752) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...