/usr/bin/java -Xmx16000000000 -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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 15:03:24,514 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 15:03:24,516 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 15:03:24,543 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 15:03:24,544 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 15:03:24,544 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 15:03:24,546 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 15:03:24,549 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 15:03:24,551 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 15:03:24,551 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 15:03:24,552 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 15:03:24,553 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 15:03:24,553 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 15:03:24,556 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 15:03:24,557 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 15:03:24,558 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 15:03:24,558 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 15:03:24,561 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 15:03:24,563 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 15:03:24,566 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 15:03:24,570 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 15:03:24,572 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 15:03:24,573 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 15:03:24,574 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 15:03:24,579 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-11 15:03:24,585 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 15:03:24,586 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 15:03:24,587 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 15:03:24,587 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 15:03:24,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 15:03:24,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 15:03:24,597 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 15:03:24,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 15:03:24,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 15:03:24,598 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 15:03:24,602 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 15:03:24,603 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-11 15:03:24,644 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 15:03:24,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 15:03:24,646 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 15:03:24,646 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 15:03:24,647 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 15:03:24,647 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 15:03:24,647 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 15:03:24,647 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 15:03:24,647 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 15:03:24,647 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 15:03:24,648 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 15:03:24,648 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 15:03:24,648 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 15:03:24,648 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 15:03:24,648 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 15:03:24,649 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 15:03:24,649 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 15:03:24,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 15:03:24,650 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 15:03:24,650 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 15:03:24,650 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 15:03:24,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 15:03:24,651 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 15:03:24,651 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 15:03:24,651 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 15:03:24,651 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 15:03:24,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 15:03:24,652 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-11 15:03:24,652 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-11 15:03:24,652 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 15:03:24,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 15:03:24,953 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 15:03:24,958 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 15:03:24,959 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 15:03:24,960 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 15:03:24,960 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.opt.i [2020-10-11 15:03:25,016 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddf867bde/47e95ec0a73d45e5ac2351922f219466/FLAG6664b7765 [2020-10-11 15:03:25,540 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 15:03:25,541 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_pso.opt.i [2020-10-11 15:03:25,563 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddf867bde/47e95ec0a73d45e5ac2351922f219466/FLAG6664b7765 [2020-10-11 15:03:25,889 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddf867bde/47e95ec0a73d45e5ac2351922f219466 [2020-10-11 15:03:25,896 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 15:03:25,898 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 15:03:25,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 15:03:25,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 15:03:25,903 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 15:03:25,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:03:25" (1/1) ... [2020-10-11 15:03:25,906 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f6df5b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:03:25, skipping insertion in model container [2020-10-11 15:03:25,907 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:03:25" (1/1) ... [2020-10-11 15:03:25,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 15:03:25,954 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 15:03:26,360 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 15:03:26,374 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 15:03:26,419 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 15:03:26,497 INFO L208 MainTranslator]: Completed translation [2020-10-11 15:03:26,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:03:26 WrapperNode [2020-10-11 15:03:26,498 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 15:03:26,498 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 15:03:26,499 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 15:03:26,499 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 15:03:26,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:03:26" (1/1) ... [2020-10-11 15:03:26,523 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:03:26" (1/1) ... [2020-10-11 15:03:26,544 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 15:03:26,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 15:03:26,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 15:03:26,545 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 15:03:26,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:03:26" (1/1) ... [2020-10-11 15:03:26,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:03:26" (1/1) ... [2020-10-11 15:03:26,557 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:03:26" (1/1) ... [2020-10-11 15:03:26,557 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:03:26" (1/1) ... [2020-10-11 15:03:26,563 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:03:26" (1/1) ... [2020-10-11 15:03:26,565 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:03:26" (1/1) ... [2020-10-11 15:03:26,567 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:03:26" (1/1) ... [2020-10-11 15:03:26,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 15:03:26,570 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 15:03:26,571 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 15:03:26,571 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 15:03:26,571 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:03:26" (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 [2020-10-11 15:03:26,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 15:03:26,635 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-11 15:03:26,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 15:03:26,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 15:03:26,636 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-11 15:03:26,636 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-11 15:03:26,636 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-11 15:03:26,636 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-11 15:03:26,636 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-11 15:03:26,637 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-11 15:03:26,637 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-11 15:03:26,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 15:03:26,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 15:03:26,639 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 15:03:26,971 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 15:03:26,971 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-11 15:03:26,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:03:26 BoogieIcfgContainer [2020-10-11 15:03:26,974 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 15:03:26,975 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 15:03:26,975 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 15:03:26,978 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 15:03:26,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:03:25" (1/3) ... [2020-10-11 15:03:26,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57a783ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:03:26, skipping insertion in model container [2020-10-11 15:03:26,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:03:26" (2/3) ... [2020-10-11 15:03:26,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57a783ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:03:26, skipping insertion in model container [2020-10-11 15:03:26,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:03:26" (3/3) ... [2020-10-11 15:03:26,981 INFO L111 eAbstractionObserver]: Analyzing ICFG safe009_pso.opt.i [2020-10-11 15:03:26,992 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-11 15:03:26,992 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 15:03:26,998 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-11 15:03:26,999 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 15:03:27,026 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:27,027 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:27,027 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:27,027 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:27,028 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:27,028 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:27,029 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:27,029 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:27,030 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:27,030 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:27,030 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:27,030 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:27,031 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:27,031 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:27,031 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:27,031 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:27,032 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:27,032 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:27,036 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:27,036 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:27,036 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:27,036 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:27,050 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:27,051 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:27,051 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:27,051 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:27,056 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:27,057 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:27,057 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:27,057 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:27,078 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-11 15:03:27,095 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 15:03:27,095 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 15:03:27,095 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 15:03:27,095 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 15:03:27,095 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 15:03:27,096 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 15:03:27,096 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 15:03:27,096 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 15:03:27,106 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 15:03:27,108 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-10-11 15:03:27,110 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 68 transitions, 151 flow [2020-10-11 15:03:27,112 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-10-11 15:03:27,157 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-10-11 15:03:27,157 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 15:03:27,162 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-10-11 15:03:27,165 INFO L117 LiptonReduction]: Number of co-enabled transitions 1186 [2020-10-11 15:03:28,599 INFO L132 LiptonReduction]: Checked pairs total: 2093 [2020-10-11 15:03:28,600 INFO L134 LiptonReduction]: Total number of compositions: 56 [2020-10-11 15:03:28,607 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-10-11 15:03:28,644 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 234 states. [2020-10-11 15:03:28,647 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states. [2020-10-11 15:03:28,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-11 15:03:28,676 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:03:28,676 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:03:28,677 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:03:28,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:03:28,687 INFO L82 PathProgramCache]: Analyzing trace with hash 364476878, now seen corresponding path program 1 times [2020-10-11 15:03:28,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:03:28,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163967287] [2020-10-11 15:03:28,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:03:28,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:03:28,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:03:28,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163967287] [2020-10-11 15:03:28,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:03:28,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-11 15:03:28,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156739254] [2020-10-11 15:03:28,906 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 15:03:28,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:03:28,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 15:03:28,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 15:03:28,924 INFO L87 Difference]: Start difference. First operand 234 states. Second operand 3 states. [2020-10-11 15:03:28,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:03:28,966 INFO L93 Difference]: Finished difference Result 222 states and 615 transitions. [2020-10-11 15:03:28,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 15:03:28,969 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-11 15:03:28,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:03:28,984 INFO L225 Difference]: With dead ends: 222 [2020-10-11 15:03:28,984 INFO L226 Difference]: Without dead ends: 174 [2020-10-11 15:03:28,986 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 15:03:29,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-10-11 15:03:29,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2020-10-11 15:03:29,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-10-11 15:03:29,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 463 transitions. [2020-10-11 15:03:29,049 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 463 transitions. Word has length 8 [2020-10-11 15:03:29,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:03:29,050 INFO L481 AbstractCegarLoop]: Abstraction has 174 states and 463 transitions. [2020-10-11 15:03:29,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 15:03:29,050 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 463 transitions. [2020-10-11 15:03:29,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-11 15:03:29,052 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:03:29,052 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:03:29,052 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 15:03:29,052 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:03:29,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:03:29,053 INFO L82 PathProgramCache]: Analyzing trace with hash -1586119381, now seen corresponding path program 1 times [2020-10-11 15:03:29,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:03:29,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125987387] [2020-10-11 15:03:29,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:03:29,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:03:29,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:03:29,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125987387] [2020-10-11 15:03:29,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:03:29,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:03:29,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519097387] [2020-10-11 15:03:29,153 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:03:29,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:03:29,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:03:29,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:03:29,154 INFO L87 Difference]: Start difference. First operand 174 states and 463 transitions. Second operand 4 states. [2020-10-11 15:03:29,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:03:29,181 INFO L93 Difference]: Finished difference Result 204 states and 513 transitions. [2020-10-11 15:03:29,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 15:03:29,182 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-11 15:03:29,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:03:29,184 INFO L225 Difference]: With dead ends: 204 [2020-10-11 15:03:29,184 INFO L226 Difference]: Without dead ends: 108 [2020-10-11 15:03:29,185 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:03:29,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-10-11 15:03:29,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-10-11 15:03:29,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-10-11 15:03:29,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 253 transitions. [2020-10-11 15:03:29,197 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 253 transitions. Word has length 9 [2020-10-11 15:03:29,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:03:29,197 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 253 transitions. [2020-10-11 15:03:29,198 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:03:29,198 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 253 transitions. [2020-10-11 15:03:29,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-11 15:03:29,199 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:03:29,199 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:03:29,199 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 15:03:29,200 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:03:29,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:03:29,200 INFO L82 PathProgramCache]: Analyzing trace with hash 409264718, now seen corresponding path program 1 times [2020-10-11 15:03:29,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:03:29,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382406984] [2020-10-11 15:03:29,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:03:29,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:03:29,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:03:29,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382406984] [2020-10-11 15:03:29,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:03:29,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-11 15:03:29,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676777908] [2020-10-11 15:03:29,275 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 15:03:29,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:03:29,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 15:03:29,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 15:03:29,276 INFO L87 Difference]: Start difference. First operand 108 states and 253 transitions. Second operand 3 states. [2020-10-11 15:03:29,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:03:29,293 INFO L93 Difference]: Finished difference Result 106 states and 246 transitions. [2020-10-11 15:03:29,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 15:03:29,294 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-11 15:03:29,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:03:29,310 INFO L225 Difference]: With dead ends: 106 [2020-10-11 15:03:29,311 INFO L226 Difference]: Without dead ends: 106 [2020-10-11 15:03:29,311 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 15:03:29,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-10-11 15:03:29,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2020-10-11 15:03:29,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-11 15:03:29,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 246 transitions. [2020-10-11 15:03:29,321 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 246 transitions. Word has length 11 [2020-10-11 15:03:29,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:03:29,321 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 246 transitions. [2020-10-11 15:03:29,321 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 15:03:29,321 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 246 transitions. [2020-10-11 15:03:29,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-11 15:03:29,323 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:03:29,323 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:03:29,323 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 15:03:29,323 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:03:29,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:03:29,324 INFO L82 PathProgramCache]: Analyzing trace with hash -197699224, now seen corresponding path program 1 times [2020-10-11 15:03:29,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:03:29,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649277378] [2020-10-11 15:03:29,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:03:29,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:03:29,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:03:29,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649277378] [2020-10-11 15:03:29,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:03:29,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:03:29,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058862799] [2020-10-11 15:03:29,379 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:03:29,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:03:29,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:03:29,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:03:29,380 INFO L87 Difference]: Start difference. First operand 106 states and 246 transitions. Second operand 4 states. [2020-10-11 15:03:29,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:03:29,398 INFO L93 Difference]: Finished difference Result 138 states and 314 transitions. [2020-10-11 15:03:29,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 15:03:29,399 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-11 15:03:29,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:03:29,399 INFO L225 Difference]: With dead ends: 138 [2020-10-11 15:03:29,400 INFO L226 Difference]: Without dead ends: 60 [2020-10-11 15:03:29,400 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:03:29,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-11 15:03:29,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-10-11 15:03:29,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-11 15:03:29,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 129 transitions. [2020-10-11 15:03:29,405 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 129 transitions. Word has length 12 [2020-10-11 15:03:29,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:03:29,406 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 129 transitions. [2020-10-11 15:03:29,406 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:03:29,406 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 129 transitions. [2020-10-11 15:03:29,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-11 15:03:29,407 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:03:29,407 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:03:29,407 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 15:03:29,407 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:03:29,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:03:29,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1143893480, now seen corresponding path program 2 times [2020-10-11 15:03:29,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:03:29,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561571322] [2020-10-11 15:03:29,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:03:29,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:03:29,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:03:29,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561571322] [2020-10-11 15:03:29,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:03:29,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:03:29,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106663528] [2020-10-11 15:03:29,505 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:03:29,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:03:29,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:03:29,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:03:29,506 INFO L87 Difference]: Start difference. First operand 60 states and 129 transitions. Second operand 4 states. [2020-10-11 15:03:29,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:03:29,534 INFO L93 Difference]: Finished difference Result 73 states and 142 transitions. [2020-10-11 15:03:29,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:03:29,535 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-11 15:03:29,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:03:29,536 INFO L225 Difference]: With dead ends: 73 [2020-10-11 15:03:29,536 INFO L226 Difference]: Without dead ends: 52 [2020-10-11 15:03:29,536 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:03:29,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-11 15:03:29,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-11 15:03:29,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-11 15:03:29,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 101 transitions. [2020-10-11 15:03:29,541 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 101 transitions. Word has length 12 [2020-10-11 15:03:29,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:03:29,541 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 101 transitions. [2020-10-11 15:03:29,542 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:03:29,542 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 101 transitions. [2020-10-11 15:03:29,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-11 15:03:29,542 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:03:29,543 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:03:29,543 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 15:03:29,543 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:03:29,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:03:29,543 INFO L82 PathProgramCache]: Analyzing trace with hash -1190230917, now seen corresponding path program 1 times [2020-10-11 15:03:29,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:03:29,544 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876606749] [2020-10-11 15:03:29,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:03:29,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:03:29,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:03:29,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876606749] [2020-10-11 15:03:29,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:03:29,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:03:29,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500279837] [2020-10-11 15:03:29,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 15:03:29,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:03:29,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 15:03:29,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:03:29,615 INFO L87 Difference]: Start difference. First operand 52 states and 101 transitions. Second operand 5 states. [2020-10-11 15:03:29,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:03:29,655 INFO L93 Difference]: Finished difference Result 53 states and 91 transitions. [2020-10-11 15:03:29,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 15:03:29,655 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-11 15:03:29,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:03:29,656 INFO L225 Difference]: With dead ends: 53 [2020-10-11 15:03:29,656 INFO L226 Difference]: Without dead ends: 38 [2020-10-11 15:03:29,657 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-11 15:03:29,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-11 15:03:29,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-11 15:03:29,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-11 15:03:29,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 61 transitions. [2020-10-11 15:03:29,660 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 61 transitions. Word has length 13 [2020-10-11 15:03:29,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:03:29,661 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 61 transitions. [2020-10-11 15:03:29,661 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 15:03:29,661 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2020-10-11 15:03:29,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-11 15:03:29,662 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:03:29,662 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:03:29,662 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-11 15:03:29,662 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:03:29,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:03:29,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1757733921, now seen corresponding path program 1 times [2020-10-11 15:03:29,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:03:29,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883224581] [2020-10-11 15:03:29,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:03:29,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:03:29,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:03:29,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883224581] [2020-10-11 15:03:29,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:03:29,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-11 15:03:29,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019480767] [2020-10-11 15:03:29,736 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 15:03:29,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:03:29,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 15:03:29,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-11 15:03:29,736 INFO L87 Difference]: Start difference. First operand 38 states and 61 transitions. Second operand 6 states. [2020-10-11 15:03:29,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:03:29,793 INFO L93 Difference]: Finished difference Result 35 states and 53 transitions. [2020-10-11 15:03:29,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 15:03:29,793 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-11 15:03:29,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:03:29,794 INFO L225 Difference]: With dead ends: 35 [2020-10-11 15:03:29,794 INFO L226 Difference]: Without dead ends: 29 [2020-10-11 15:03:29,795 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-11 15:03:29,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-11 15:03:29,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-11 15:03:29,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-11 15:03:29,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 43 transitions. [2020-10-11 15:03:29,797 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 43 transitions. Word has length 14 [2020-10-11 15:03:29,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:03:29,797 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 43 transitions. [2020-10-11 15:03:29,797 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 15:03:29,798 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2020-10-11 15:03:29,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-11 15:03:29,798 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:03:29,798 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:03:29,798 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-11 15:03:29,799 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:03:29,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:03:29,799 INFO L82 PathProgramCache]: Analyzing trace with hash 1250665313, now seen corresponding path program 1 times [2020-10-11 15:03:29,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:03:29,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052744383] [2020-10-11 15:03:29,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:03:29,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:03:29,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:03:29,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052744383] [2020-10-11 15:03:29,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:03:29,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:03:29,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157463895] [2020-10-11 15:03:29,834 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 15:03:29,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:03:29,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 15:03:29,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 15:03:29,835 INFO L87 Difference]: Start difference. First operand 29 states and 43 transitions. Second operand 3 states. [2020-10-11 15:03:29,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:03:29,841 INFO L93 Difference]: Finished difference Result 28 states and 42 transitions. [2020-10-11 15:03:29,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 15:03:29,843 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-10-11 15:03:29,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:03:29,843 INFO L225 Difference]: With dead ends: 28 [2020-10-11 15:03:29,843 INFO L226 Difference]: Without dead ends: 0 [2020-10-11 15:03:29,844 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 15:03:29,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-11 15:03:29,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-11 15:03:29,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-11 15:03:29,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-11 15:03:29,845 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-10-11 15:03:29,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:03:29,845 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-11 15:03:29,845 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 15:03:29,845 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-11 15:03:29,845 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-11 15:03:29,846 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-11 15:03:29,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 03:03:29 BasicIcfg [2020-10-11 15:03:29,851 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 15:03:29,857 INFO L168 Benchmark]: Toolchain (without parser) took 3955.46 ms. Allocated memory was 250.6 MB in the beginning and 369.6 MB in the end (delta: 119.0 MB). Free memory was 203.9 MB in the beginning and 267.8 MB in the end (delta: -63.9 MB). Peak memory consumption was 55.1 MB. Max. memory is 14.2 GB. [2020-10-11 15:03:29,858 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 250.6 MB. Free memory is still 224.5 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 15:03:29,861 INFO L168 Benchmark]: CACSL2BoogieTranslator took 598.96 ms. Allocated memory was 250.6 MB in the beginning and 310.9 MB in the end (delta: 60.3 MB). Free memory was 203.9 MB in the beginning and 264.1 MB in the end (delta: -60.2 MB). Peak memory consumption was 28.0 MB. Max. memory is 14.2 GB. [2020-10-11 15:03:29,862 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.26 ms. Allocated memory is still 310.9 MB. Free memory was 264.1 MB in the beginning and 261.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 15:03:29,862 INFO L168 Benchmark]: Boogie Preprocessor took 25.28 ms. Allocated memory is still 310.9 MB. Free memory is still 261.6 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 15:03:29,868 INFO L168 Benchmark]: RCFGBuilder took 403.20 ms. Allocated memory is still 310.9 MB. Free memory was 261.6 MB in the beginning and 237.2 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. [2020-10-11 15:03:29,869 INFO L168 Benchmark]: TraceAbstraction took 2876.98 ms. Allocated memory was 310.9 MB in the beginning and 369.6 MB in the end (delta: 58.7 MB). Free memory was 237.2 MB in the beginning and 267.8 MB in the end (delta: -30.6 MB). Peak memory consumption was 28.1 MB. Max. memory is 14.2 GB. [2020-10-11 15:03:29,875 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43 ms. Allocated memory is still 250.6 MB. Free memory is still 224.5 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 598.96 ms. Allocated memory was 250.6 MB in the beginning and 310.9 MB in the end (delta: 60.3 MB). Free memory was 203.9 MB in the beginning and 264.1 MB in the end (delta: -60.2 MB). Peak memory consumption was 28.0 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 46.26 ms. Allocated memory is still 310.9 MB. Free memory was 264.1 MB in the beginning and 261.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 25.28 ms. Allocated memory is still 310.9 MB. Free memory is still 261.6 MB. There was no memory consumed. Max. memory is 14.2 GB. * RCFGBuilder took 403.20 ms. Allocated memory is still 310.9 MB. Free memory was 261.6 MB in the beginning and 237.2 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2876.98 ms. Allocated memory was 310.9 MB in the beginning and 369.6 MB in the end (delta: 58.7 MB). Free memory was 237.2 MB in the beginning and 267.8 MB in the end (delta: -30.6 MB). Peak memory consumption was 28.1 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 761 VarBasedMoverChecksPositive, 33 VarBasedMoverChecksNegative, 7 SemBasedMoverChecksPositive, 26 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 42 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.4s, 76 PlacesBefore, 30 PlacesAfterwards, 68 TransitionsBefore, 20 TransitionsAfterwards, 1186 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 56 TotalNumberOfCompositions, 2093 MoverChecksTotal - PositiveResult [Line: 7]: 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 4 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.7s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 125 SDtfs, 102 SDslu, 132 SDs, 0 SdLazy, 102 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=234occurred 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, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 87 ConstructedInterpolants, 0 QuantifiedInterpolants, 3039 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...