/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe036_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 02:22:50,485 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 02:22:50,488 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 02:22:50,525 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 02:22:50,526 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 02:22:50,533 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 02:22:50,536 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 02:22:50,540 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 02:22:50,542 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 02:22:50,545 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 02:22:50,545 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 02:22:50,546 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 02:22:50,546 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 02:22:50,549 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 02:22:50,551 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 02:22:50,553 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 02:22:50,554 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 02:22:50,556 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 02:22:50,558 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 02:22:50,567 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 02:22:50,569 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 02:22:50,570 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 02:22:50,571 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 02:22:50,572 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 02:22:50,583 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-22 02:22:50,589 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 02:22:50,589 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 02:22:50,590 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 02:22:50,591 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 02:22:50,592 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 02:22:50,592 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 02:22:50,593 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 02:22:50,593 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 02:22:50,593 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 02:22:50,595 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 02:22:50,596 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 02:22:50,597 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf [2020-10-22 02:22:50,638 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 02:22:50,638 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 02:22:50,640 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 02:22:50,641 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 02:22:50,641 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 02:22:50,641 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 02:22:50,641 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 02:22:50,642 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 02:22:50,642 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 02:22:50,642 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 02:22:50,643 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 02:22:50,644 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 02:22:50,644 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 02:22:50,644 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 02:22:50,644 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 02:22:50,644 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 02:22:50,645 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 02:22:50,645 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 02:22:50,645 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 02:22:50,645 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 02:22:50,645 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 02:22:50,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 02:22:50,646 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 02:22:50,646 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 02:22:50,646 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 02:22:50,646 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 02:22:50,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 02:22:50,647 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 02:22:50,647 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 02:22:50,647 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 02:22:50,648 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 02:22:50,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 02:22:50,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 02:22:50,968 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 02:22:50,970 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 02:22:50,970 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 02:22:50,971 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe036_rmo.oepc.i [2020-10-22 02:22:51,036 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c2e9b805/8096a2065b6443a282e3df7ecffdb197/FLAG81671a91b [2020-10-22 02:22:51,531 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 02:22:51,531 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036_rmo.oepc.i [2020-10-22 02:22:51,547 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c2e9b805/8096a2065b6443a282e3df7ecffdb197/FLAG81671a91b [2020-10-22 02:22:51,785 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c2e9b805/8096a2065b6443a282e3df7ecffdb197 [2020-10-22 02:22:51,792 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 02:22:51,800 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 02:22:51,801 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 02:22:51,801 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 02:22:51,805 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 02:22:51,806 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:22:51" (1/1) ... [2020-10-22 02:22:51,809 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5565e4a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:22:51, skipping insertion in model container [2020-10-22 02:22:51,809 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:22:51" (1/1) ... [2020-10-22 02:22:51,817 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 02:22:51,876 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 02:22:52,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:22:52,484 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 02:22:52,556 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:22:52,638 INFO L208 MainTranslator]: Completed translation [2020-10-22 02:22:52,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:22:52 WrapperNode [2020-10-22 02:22:52,639 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 02:22:52,640 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 02:22:52,640 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 02:22:52,640 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 02:22:52,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:22:52" (1/1) ... [2020-10-22 02:22:52,665 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:22:52" (1/1) ... [2020-10-22 02:22:52,687 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 02:22:52,688 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 02:22:52,688 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 02:22:52,688 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 02:22:52,697 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:22:52" (1/1) ... [2020-10-22 02:22:52,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:22:52" (1/1) ... [2020-10-22 02:22:52,701 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:22:52" (1/1) ... [2020-10-22 02:22:52,701 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:22:52" (1/1) ... [2020-10-22 02:22:52,707 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:22:52" (1/1) ... [2020-10-22 02:22:52,710 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:22:52" (1/1) ... [2020-10-22 02:22:52,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:22:52" (1/1) ... [2020-10-22 02:22:52,715 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 02:22:52,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 02:22:52,716 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 02:22:52,716 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 02:22:52,717 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:22:52" (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 [2020-10-22 02:22:52,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 02:22:52,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-22 02:22:52,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 02:22:52,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 02:22:52,795 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-22 02:22:52,795 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-22 02:22:52,796 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-22 02:22:52,797 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-22 02:22:52,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 02:22:52,799 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-22 02:22:52,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 02:22:52,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 02:22:52,802 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-22 02:22:53,177 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 02:22:53,177 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-22 02:22:53,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:22:53 BoogieIcfgContainer [2020-10-22 02:22:53,179 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 02:22:53,181 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 02:22:53,181 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 02:22:53,184 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 02:22:53,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 02:22:51" (1/3) ... [2020-10-22 02:22:53,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b52fa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:22:53, skipping insertion in model container [2020-10-22 02:22:53,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:22:52" (2/3) ... [2020-10-22 02:22:53,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b52fa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:22:53, skipping insertion in model container [2020-10-22 02:22:53,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:22:53" (3/3) ... [2020-10-22 02:22:53,188 INFO L111 eAbstractionObserver]: Analyzing ICFG safe036_rmo.oepc.i [2020-10-22 02:22:53,199 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 02:22:53,199 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 02:22:53,207 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 02:22:53,208 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 02:22:53,238 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:53,238 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:53,239 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:53,239 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:53,239 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:53,240 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:53,241 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:53,241 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:53,241 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:53,242 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:53,242 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:53,243 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:53,251 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:53,252 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:53,252 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:53,252 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:53,259 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:53,260 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:53,260 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:53,260 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:53,265 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 02:22:53,277 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-22 02:22:53,294 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 02:22:53,295 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 02:22:53,295 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 02:22:53,295 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 02:22:53,295 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 02:22:53,295 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 02:22:53,295 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 02:22:53,295 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 02:22:53,307 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 02:22:53,308 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 65 transitions, 140 flow [2020-10-22 02:22:53,311 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 65 transitions, 140 flow [2020-10-22 02:22:53,313 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 69 places, 65 transitions, 140 flow [2020-10-22 02:22:53,356 INFO L129 PetriNetUnfolder]: 3/63 cut-off events. [2020-10-22 02:22:53,356 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 02:22:53,362 INFO L80 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 63 events. 3/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2020-10-22 02:22:53,368 INFO L116 LiptonReduction]: Number of co-enabled transitions 792 [2020-10-22 02:22:54,729 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-10-22 02:22:54,838 INFO L131 LiptonReduction]: Checked pairs total: 1418 [2020-10-22 02:22:54,839 INFO L133 LiptonReduction]: Total number of compositions: 63 [2020-10-22 02:22:54,846 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 23 places, 17 transitions, 44 flow [2020-10-22 02:22:54,861 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 90 states. [2020-10-22 02:22:54,864 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2020-10-22 02:22:54,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-22 02:22:54,871 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:22:54,872 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-22 02:22:54,872 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:22:54,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:22:54,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1338798449, now seen corresponding path program 1 times [2020-10-22 02:22:54,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:22:54,903 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991157996] [2020-10-22 02:22:54,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:22:55,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:22:55,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:22:55,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991157996] [2020-10-22 02:22:55,094 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:22:55,094 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:22:55,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1012977356] [2020-10-22 02:22:55,096 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:22:55,099 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:22:55,113 INFO L252 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-10-22 02:22:55,113 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:22:55,117 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:22:55,118 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-22 02:22:55,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:22:55,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-22 02:22:55,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 02:22:55,135 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 2 states. [2020-10-22 02:22:55,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:22:55,145 INFO L93 Difference]: Finished difference Result 90 states and 200 transitions. [2020-10-22 02:22:55,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-22 02:22:55,147 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-10-22 02:22:55,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:22:55,157 INFO L225 Difference]: With dead ends: 90 [2020-10-22 02:22:55,158 INFO L226 Difference]: Without dead ends: 74 [2020-10-22 02:22:55,159 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 02:22:55,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-22 02:22:55,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-10-22 02:22:55,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-22 02:22:55,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 160 transitions. [2020-10-22 02:22:55,207 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 160 transitions. Word has length 6 [2020-10-22 02:22:55,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:22:55,208 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 160 transitions. [2020-10-22 02:22:55,208 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-22 02:22:55,208 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 160 transitions. [2020-10-22 02:22:55,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-22 02:22:55,210 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:22:55,210 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:22:55,210 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 02:22:55,210 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:22:55,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:22:55,211 INFO L82 PathProgramCache]: Analyzing trace with hash 1446900907, now seen corresponding path program 1 times [2020-10-22 02:22:55,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:22:55,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754881712] [2020-10-22 02:22:55,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:22:55,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:22:55,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:22:55,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754881712] [2020-10-22 02:22:55,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:22:55,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:22:55,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [683193495] [2020-10-22 02:22:55,376 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:22:55,376 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:22:55,378 INFO L252 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-10-22 02:22:55,378 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:22:55,379 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:22:55,380 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:22:55,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:22:55,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:22:55,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:22:55,381 INFO L87 Difference]: Start difference. First operand 74 states and 160 transitions. Second operand 4 states. [2020-10-22 02:22:55,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:22:55,419 INFO L93 Difference]: Finished difference Result 63 states and 112 transitions. [2020-10-22 02:22:55,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 02:22:55,420 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-22 02:22:55,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:22:55,421 INFO L225 Difference]: With dead ends: 63 [2020-10-22 02:22:55,421 INFO L226 Difference]: Without dead ends: 47 [2020-10-22 02:22:55,422 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:22:55,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-22 02:22:55,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-10-22 02:22:55,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-22 02:22:55,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 79 transitions. [2020-10-22 02:22:55,429 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 79 transitions. Word has length 7 [2020-10-22 02:22:55,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:22:55,429 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 79 transitions. [2020-10-22 02:22:55,430 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:22:55,430 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 79 transitions. [2020-10-22 02:22:55,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-22 02:22:55,431 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:22:55,431 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:22:55,431 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 02:22:55,431 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:22:55,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:22:55,432 INFO L82 PathProgramCache]: Analyzing trace with hash 1074461755, now seen corresponding path program 1 times [2020-10-22 02:22:55,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:22:55,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745131525] [2020-10-22 02:22:55,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:22:55,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:22:55,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:22:55,512 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745131525] [2020-10-22 02:22:55,513 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:22:55,513 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 02:22:55,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [36085304] [2020-10-22 02:22:55,513 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:22:55,514 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:22:55,517 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 22 transitions. [2020-10-22 02:22:55,517 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:22:55,591 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [660#(<= ~__unbuffered_cnt~0 0)] [2020-10-22 02:22:55,591 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-22 02:22:55,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:22:55,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-22 02:22:55,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-22 02:22:55,592 INFO L87 Difference]: Start difference. First operand 47 states and 79 transitions. Second operand 6 states. [2020-10-22 02:22:55,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:22:55,636 INFO L93 Difference]: Finished difference Result 36 states and 55 transitions. [2020-10-22 02:22:55,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-22 02:22:55,637 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-10-22 02:22:55,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:22:55,637 INFO L225 Difference]: With dead ends: 36 [2020-10-22 02:22:55,637 INFO L226 Difference]: Without dead ends: 29 [2020-10-22 02:22:55,638 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:22:55,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-22 02:22:55,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-22 02:22:55,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-22 02:22:55,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 43 transitions. [2020-10-22 02:22:55,642 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 43 transitions. Word has length 10 [2020-10-22 02:22:55,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:22:55,643 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 43 transitions. [2020-10-22 02:22:55,643 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-22 02:22:55,643 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2020-10-22 02:22:55,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-22 02:22:55,644 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:22:55,644 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:22:55,644 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 02:22:55,645 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:22:55,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:22:55,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1774648449, now seen corresponding path program 1 times [2020-10-22 02:22:55,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:22:55,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152504931] [2020-10-22 02:22:55,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:22:55,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:22:55,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:22:55,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152504931] [2020-10-22 02:22:55,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:22:55,709 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 02:22:55,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [236914706] [2020-10-22 02:22:55,710 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:22:55,711 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:22:55,714 INFO L252 McrAutomatonBuilder]: Finished intersection with 22 states and 29 transitions. [2020-10-22 02:22:55,714 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:22:55,776 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:22:55,776 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:22:55,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:22:55,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:22:55,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:22:55,778 INFO L87 Difference]: Start difference. First operand 29 states and 43 transitions. Second operand 5 states. [2020-10-22 02:22:55,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:22:55,807 INFO L93 Difference]: Finished difference Result 37 states and 52 transitions. [2020-10-22 02:22:55,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 02:22:55,808 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-22 02:22:55,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:22:55,808 INFO L225 Difference]: With dead ends: 37 [2020-10-22 02:22:55,808 INFO L226 Difference]: Without dead ends: 17 [2020-10-22 02:22:55,809 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:22:55,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-10-22 02:22:55,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-10-22 02:22:55,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-22 02:22:55,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2020-10-22 02:22:55,812 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 13 [2020-10-22 02:22:55,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:22:55,812 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2020-10-22 02:22:55,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:22:55,812 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2020-10-22 02:22:55,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-22 02:22:55,813 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:22:55,813 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:22:55,813 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 02:22:55,814 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:22:55,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:22:55,814 INFO L82 PathProgramCache]: Analyzing trace with hash 290614237, now seen corresponding path program 2 times [2020-10-22 02:22:55,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:22:55,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521319299] [2020-10-22 02:22:55,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:22:55,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:22:55,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:22:55,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521319299] [2020-10-22 02:22:55,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:22:55,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 02:22:55,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [134194895] [2020-10-22 02:22:55,888 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:22:55,890 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:22:55,891 INFO L252 McrAutomatonBuilder]: Finished intersection with 14 states and 13 transitions. [2020-10-22 02:22:55,891 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:22:55,892 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:22:55,892 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:22:55,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:22:55,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:22:55,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:22:55,893 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 5 states. [2020-10-22 02:22:55,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:22:55,914 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2020-10-22 02:22:55,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 02:22:55,915 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-22 02:22:55,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:22:55,915 INFO L225 Difference]: With dead ends: 16 [2020-10-22 02:22:55,915 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 02:22:55,916 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:22:55,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 02:22:55,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 02:22:55,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 02:22:55,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 02:22:55,917 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-10-22 02:22:55,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:22:55,917 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 02:22:55,917 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:22:55,917 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 02:22:55,918 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 02:22:55,918 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 02:22:55,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 02:22:55 BasicIcfg [2020-10-22 02:22:55,922 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 02:22:55,924 INFO L168 Benchmark]: Toolchain (without parser) took 4129.50 ms. Allocated memory was 145.2 MB in the beginning and 246.4 MB in the end (delta: 101.2 MB). Free memory was 101.3 MB in the beginning and 99.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 103.1 MB. Max. memory is 7.1 GB. [2020-10-22 02:22:55,925 INFO L168 Benchmark]: CDTParser took 3.02 ms. Allocated memory is still 145.2 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-22 02:22:55,926 INFO L168 Benchmark]: CACSL2BoogieTranslator took 838.02 ms. Allocated memory was 145.2 MB in the beginning and 203.9 MB in the end (delta: 58.7 MB). Free memory was 100.3 MB in the beginning and 158.8 MB in the end (delta: -58.5 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB. [2020-10-22 02:22:55,927 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.13 ms. Allocated memory is still 203.9 MB. Free memory was 158.8 MB in the beginning and 156.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-10-22 02:22:55,927 INFO L168 Benchmark]: Boogie Preprocessor took 27.05 ms. Allocated memory is still 203.9 MB. Free memory was 156.0 MB in the beginning and 154.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-22 02:22:55,928 INFO L168 Benchmark]: RCFGBuilder took 464.02 ms. Allocated memory is still 203.9 MB. Free memory was 154.6 MB in the beginning and 132.4 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-10-22 02:22:55,929 INFO L168 Benchmark]: TraceAbstraction took 2741.03 ms. Allocated memory was 203.9 MB in the beginning and 246.4 MB in the end (delta: 42.5 MB). Free memory was 132.4 MB in the beginning and 99.4 MB in the end (delta: 33.0 MB). Peak memory consumption was 75.5 MB. Max. memory is 7.1 GB. [2020-10-22 02:22:55,933 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.02 ms. Allocated memory is still 145.2 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 838.02 ms. Allocated memory was 145.2 MB in the beginning and 203.9 MB in the end (delta: 58.7 MB). Free memory was 100.3 MB in the beginning and 158.8 MB in the end (delta: -58.5 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.13 ms. Allocated memory is still 203.9 MB. Free memory was 158.8 MB in the beginning and 156.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.05 ms. Allocated memory is still 203.9 MB. Free memory was 156.0 MB in the beginning and 154.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 464.02 ms. Allocated memory is still 203.9 MB. Free memory was 154.6 MB in the beginning and 132.4 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2741.03 ms. Allocated memory was 203.9 MB in the beginning and 246.4 MB in the end (delta: 42.5 MB). Free memory was 132.4 MB in the beginning and 99.4 MB in the end (delta: 33.0 MB). Peak memory consumption was 75.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 435 VarBasedMoverChecksPositive, 11 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 25 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.5s, 69 PlacesBefore, 23 PlacesAfterwards, 65 TransitionsBefore, 17 TransitionsAfterwards, 792 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 63 TotalNumberOfCompositions, 1418 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 71 SDtfs, 48 SDslu, 109 SDs, 0 SdLazy, 53 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 1126 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...