/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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 19:04:51,583 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 19:04:51,586 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 19:04:51,602 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 19:04:51,602 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 19:04:51,603 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 19:04:51,605 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 19:04:51,606 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 19:04:51,608 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 19:04:51,611 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 19:04:51,612 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 19:04:51,614 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 19:04:51,614 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 19:04:51,615 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 19:04:51,616 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 19:04:51,622 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 19:04:51,624 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 19:04:51,625 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 19:04:51,627 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 19:04:51,629 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 19:04:51,632 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 19:04:51,633 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 19:04:51,636 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 19:04:51,637 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 19:04:51,639 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-18 19:04:51,639 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-18 19:04:51,639 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-18 19:04:51,641 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-18 19:04:51,641 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-18 19:04:51,642 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-18 19:04:51,642 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 19:04:51,643 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 19:04:51,644 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 19:04:51,645 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 19:04:51,645 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 19:04:51,646 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 19:04:51,646 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 19:04:51,646 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 19:04:51,647 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 19:04:51,647 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 19:04:51,648 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 19:04:51,652 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2019-12-18 19:04:51,673 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 19:04:51,674 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 19:04:51,675 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 19:04:51,675 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 19:04:51,675 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 19:04:51,676 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 19:04:51,676 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 19:04:51,676 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 19:04:51,676 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 19:04:51,676 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 19:04:51,676 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 19:04:51,677 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 19:04:51,677 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 19:04:51,677 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 19:04:51,677 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 19:04:51,678 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 19:04:51,678 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 19:04:51,678 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 19:04:51,678 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 19:04:51,678 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 19:04:51,679 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 19:04:51,679 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 19:04:51,679 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 19:04:51,679 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 19:04:51,679 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 19:04:51,680 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 19:04:51,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 19:04:51,680 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 19:04:51,680 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 19:04:51,975 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 19:04:51,986 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 19:04:51,991 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 19:04:51,992 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 19:04:51,992 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 19:04:51,993 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.oepc.i [2019-12-18 19:04:52,048 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96e38ccfd/df6aea18a3a54e7ea90cbd6e5fb3ca38/FLAG3d0fd8fc9 [2019-12-18 19:04:52,567 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 19:04:52,567 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.oepc.i [2019-12-18 19:04:52,583 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96e38ccfd/df6aea18a3a54e7ea90cbd6e5fb3ca38/FLAG3d0fd8fc9 [2019-12-18 19:04:52,914 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96e38ccfd/df6aea18a3a54e7ea90cbd6e5fb3ca38 [2019-12-18 19:04:52,923 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 19:04:52,925 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 19:04:52,926 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 19:04:52,926 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 19:04:52,930 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 19:04:52,931 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 07:04:52" (1/1) ... [2019-12-18 19:04:52,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11713e81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:04:52, skipping insertion in model container [2019-12-18 19:04:52,934 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 07:04:52" (1/1) ... [2019-12-18 19:04:52,939 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 19:04:52,990 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 19:04:53,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 19:04:53,499 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 19:04:53,563 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 19:04:53,662 INFO L208 MainTranslator]: Completed translation [2019-12-18 19:04:53,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:04:53 WrapperNode [2019-12-18 19:04:53,663 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 19:04:53,664 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 19:04:53,664 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 19:04:53,664 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 19:04:53,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:04:53" (1/1) ... [2019-12-18 19:04:53,689 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:04:53" (1/1) ... [2019-12-18 19:04:53,708 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 19:04:53,709 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 19:04:53,709 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 19:04:53,709 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 19:04:53,719 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:04:53" (1/1) ... [2019-12-18 19:04:53,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:04:53" (1/1) ... [2019-12-18 19:04:53,723 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:04:53" (1/1) ... [2019-12-18 19:04:53,723 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:04:53" (1/1) ... [2019-12-18 19:04:53,729 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:04:53" (1/1) ... [2019-12-18 19:04:53,732 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:04:53" (1/1) ... [2019-12-18 19:04:53,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:04:53" (1/1) ... [2019-12-18 19:04:53,737 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 19:04:53,738 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 19:04:53,738 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 19:04:53,738 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 19:04:53,739 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:04:53" (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 [2019-12-18 19:04:53,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 19:04:53,808 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 19:04:53,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 19:04:53,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 19:04:53,809 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 19:04:53,809 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 19:04:53,809 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 19:04:53,809 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 19:04:53,810 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 19:04:53,810 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 19:04:53,810 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 19:04:53,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 19:04:53,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 19:04:53,813 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 19:04:54,205 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 19:04:54,206 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 19:04:54,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 07:04:54 BoogieIcfgContainer [2019-12-18 19:04:54,209 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 19:04:54,211 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 19:04:54,211 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 19:04:54,215 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 19:04:54,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 07:04:52" (1/3) ... [2019-12-18 19:04:54,217 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c8babc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 07:04:54, skipping insertion in model container [2019-12-18 19:04:54,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:04:53" (2/3) ... [2019-12-18 19:04:54,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c8babc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 07:04:54, skipping insertion in model container [2019-12-18 19:04:54,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 07:04:54" (3/3) ... [2019-12-18 19:04:54,221 INFO L109 eAbstractionObserver]: Analyzing ICFG safe030_tso.oepc.i [2019-12-18 19:04:54,231 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 19:04:54,231 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 19:04:54,239 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 19:04:54,240 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 19:04:54,264 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:04:54,265 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:04:54,265 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:04:54,265 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:04:54,266 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:04:54,266 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:04:54,267 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:04:54,267 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:04:54,267 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:04:54,267 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:04:54,268 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:04:54,268 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:04:54,268 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:04:54,269 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:04:54,269 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:04:54,269 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:04:54,270 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:04:54,270 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:04:54,274 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:04:54,274 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:04:54,275 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:04:54,275 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:04:54,281 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:04:54,281 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:04:54,281 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:04:54,282 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:04:54,284 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:04:54,285 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:04:54,285 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:04:54,285 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:04:54,301 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 19:04:54,319 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 19:04:54,320 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 19:04:54,320 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 19:04:54,320 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 19:04:54,320 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 19:04:54,320 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 19:04:54,320 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 19:04:54,321 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 19:04:54,333 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 52 transitions [2019-12-18 19:04:54,335 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 61 places, 52 transitions [2019-12-18 19:04:54,373 INFO L126 PetriNetUnfolder]: 1/49 cut-off events. [2019-12-18 19:04:54,373 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:04:54,380 INFO L76 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 49 events. 1/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 23 event pairs. 9/56 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 19:04:54,385 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 61 places, 52 transitions [2019-12-18 19:04:54,403 INFO L126 PetriNetUnfolder]: 1/49 cut-off events. [2019-12-18 19:04:54,403 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:04:54,405 INFO L76 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 49 events. 1/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 23 event pairs. 9/56 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 19:04:54,407 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 19:04:54,410 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 19:04:56,074 INFO L206 etLargeBlockEncoding]: Checked pairs total: 449 [2019-12-18 19:04:56,074 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-18 19:04:56,078 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-18 19:04:56,089 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-18 19:04:56,091 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-18 19:04:56,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-18 19:04:56,098 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:04:56,099 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:04:56,099 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:04:56,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:04:56,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1341354071, now seen corresponding path program 1 times [2019-12-18 19:04:56,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:04:56,115 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503948162] [2019-12-18 19:04:56,116 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:04:56,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:04:56,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 19:04:56,315 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503948162] [2019-12-18 19:04:56,316 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:04:56,316 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 19:04:56,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778092853] [2019-12-18 19:04:56,322 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:04:56,322 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:04:56,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:04:56,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:04:56,340 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-18 19:04:56,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:04:56,379 INFO L93 Difference]: Finished difference Result 44 states and 89 transitions. [2019-12-18 19:04:56,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:04:56,382 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-12-18 19:04:56,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:04:56,412 INFO L225 Difference]: With dead ends: 44 [2019-12-18 19:04:56,412 INFO L226 Difference]: Without dead ends: 28 [2019-12-18 19:04:56,416 INFO L631 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 [2019-12-18 19:04:56,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-18 19:04:56,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-18 19:04:56,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-18 19:04:56,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 49 transitions. [2019-12-18 19:04:56,459 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 49 transitions. Word has length 7 [2019-12-18 19:04:56,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:04:56,459 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 49 transitions. [2019-12-18 19:04:56,459 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:04:56,459 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 49 transitions. [2019-12-18 19:04:56,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 19:04:56,460 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:04:56,460 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:04:56,460 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:04:56,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:04:56,461 INFO L82 PathProgramCache]: Analyzing trace with hash 1367696608, now seen corresponding path program 1 times [2019-12-18 19:04:56,461 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:04:56,461 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438956157] [2019-12-18 19:04:56,462 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:04:56,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:04:56,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 19:04:56,550 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438956157] [2019-12-18 19:04:56,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:04:56,551 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 19:04:56,551 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574035406] [2019-12-18 19:04:56,553 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:04:56,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:04:56,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:04:56,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:04:56,554 INFO L87 Difference]: Start difference. First operand 28 states and 49 transitions. Second operand 3 states. [2019-12-18 19:04:56,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:04:56,581 INFO L93 Difference]: Finished difference Result 30 states and 46 transitions. [2019-12-18 19:04:56,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:04:56,582 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 19:04:56,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:04:56,583 INFO L225 Difference]: With dead ends: 30 [2019-12-18 19:04:56,583 INFO L226 Difference]: Without dead ends: 28 [2019-12-18 19:04:56,584 INFO L631 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 [2019-12-18 19:04:56,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-18 19:04:56,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2019-12-18 19:04:56,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-12-18 19:04:56,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 42 transitions. [2019-12-18 19:04:56,589 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 42 transitions. Word has length 8 [2019-12-18 19:04:56,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:04:56,590 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 42 transitions. [2019-12-18 19:04:56,590 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:04:56,590 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 42 transitions. [2019-12-18 19:04:56,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 19:04:56,591 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:04:56,591 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:04:56,591 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:04:56,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:04:56,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1367696391, now seen corresponding path program 1 times [2019-12-18 19:04:56,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:04:56,592 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188164426] [2019-12-18 19:04:56,593 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:04:56,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:04:56,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 19:04:56,662 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188164426] [2019-12-18 19:04:56,662 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:04:56,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 19:04:56,663 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800549514] [2019-12-18 19:04:56,663 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:04:56,664 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:04:56,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:04:56,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:04:56,665 INFO L87 Difference]: Start difference. First operand 26 states and 42 transitions. Second operand 3 states. [2019-12-18 19:04:56,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:04:56,690 INFO L93 Difference]: Finished difference Result 28 states and 39 transitions. [2019-12-18 19:04:56,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:04:56,691 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 19:04:56,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:04:56,691 INFO L225 Difference]: With dead ends: 28 [2019-12-18 19:04:56,691 INFO L226 Difference]: Without dead ends: 20 [2019-12-18 19:04:56,692 INFO L631 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 [2019-12-18 19:04:56,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-12-18 19:04:56,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-12-18 19:04:56,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-12-18 19:04:56,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2019-12-18 19:04:56,695 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 26 transitions. Word has length 8 [2019-12-18 19:04:56,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:04:56,696 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 26 transitions. [2019-12-18 19:04:56,696 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:04:56,696 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2019-12-18 19:04:56,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 19:04:56,697 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:04:56,697 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:04:56,697 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:04:56,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:04:56,698 INFO L82 PathProgramCache]: Analyzing trace with hash -551084959, now seen corresponding path program 1 times [2019-12-18 19:04:56,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:04:56,698 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720357308] [2019-12-18 19:04:56,698 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:04:56,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:04:56,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 19:04:56,734 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720357308] [2019-12-18 19:04:56,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:04:56,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 19:04:56,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395688378] [2019-12-18 19:04:56,735 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:04:56,735 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:04:56,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:04:56,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:04:56,736 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. Second operand 3 states. [2019-12-18 19:04:56,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:04:56,746 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2019-12-18 19:04:56,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:04:56,747 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-18 19:04:56,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:04:56,747 INFO L225 Difference]: With dead ends: 18 [2019-12-18 19:04:56,748 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 19:04:56,748 INFO L631 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 [2019-12-18 19:04:56,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 19:04:56,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 19:04:56,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 19:04:56,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 19:04:56,750 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2019-12-18 19:04:56,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:04:56,750 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 19:04:56,750 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:04:56,750 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 19:04:56,750 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 19:04:56,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 07:04:56 BasicIcfg [2019-12-18 19:04:56,757 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 19:04:56,761 INFO L168 Benchmark]: Toolchain (without parser) took 3835.13 ms. Allocated memory was 145.2 MB in the beginning and 245.9 MB in the end (delta: 100.7 MB). Free memory was 101.8 MB in the beginning and 147.3 MB in the end (delta: -45.5 MB). Peak memory consumption was 55.2 MB. Max. memory is 7.1 GB. [2019-12-18 19:04:56,763 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-18 19:04:56,765 INFO L168 Benchmark]: CACSL2BoogieTranslator took 737.82 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 101.4 MB in the beginning and 159.2 MB in the end (delta: -57.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2019-12-18 19:04:56,767 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.50 ms. Allocated memory is still 202.4 MB. Free memory was 159.2 MB in the beginning and 157.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-18 19:04:56,773 INFO L168 Benchmark]: Boogie Preprocessor took 28.32 ms. Allocated memory is still 202.4 MB. Free memory was 157.2 MB in the beginning and 155.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-18 19:04:56,773 INFO L168 Benchmark]: RCFGBuilder took 471.92 ms. Allocated memory is still 202.4 MB. Free memory was 155.9 MB in the beginning and 135.0 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. [2019-12-18 19:04:56,776 INFO L168 Benchmark]: TraceAbstraction took 2546.59 ms. Allocated memory was 202.4 MB in the beginning and 245.9 MB in the end (delta: 43.5 MB). Free memory was 135.0 MB in the beginning and 147.3 MB in the end (delta: -12.3 MB). Peak memory consumption was 31.2 MB. Max. memory is 7.1 GB. [2019-12-18 19:04:56,782 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 737.82 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 101.4 MB in the beginning and 159.2 MB in the end (delta: -57.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 44.50 ms. Allocated memory is still 202.4 MB. Free memory was 159.2 MB in the beginning and 157.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.32 ms. Allocated memory is still 202.4 MB. Free memory was 157.2 MB in the beginning and 155.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 471.92 ms. Allocated memory is still 202.4 MB. Free memory was 155.9 MB in the beginning and 135.0 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2546.59 ms. Allocated memory was 202.4 MB in the beginning and 245.9 MB in the end (delta: 43.5 MB). Free memory was 135.0 MB in the beginning and 147.3 MB in the end (delta: -12.3 MB). Peak memory consumption was 31.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 61 ProgramPointsBefore, 21 ProgramPointsAfterwards, 52 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 12 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 228 VarBasedMoverChecksPositive, 19 VarBasedMoverChecksNegative, 9 SemBasedMoverChecksPositive, 14 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 449 CheckedPairsTotal, 44 TotalNumberOfCompositions - PositiveResult [Line: 4]: 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, 52 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 49 SDtfs, 10 SDslu, 24 SDs, 0 SdLazy, 15 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 314 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...