/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-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe007_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 07:33:09,648 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 07:33:09,651 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 07:33:09,670 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 07:33:09,671 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 07:33:09,673 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 07:33:09,675 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 07:33:09,687 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 07:33:09,689 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 07:33:09,690 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 07:33:09,691 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 07:33:09,692 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 07:33:09,693 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 07:33:09,694 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 07:33:09,695 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 07:33:09,696 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 07:33:09,697 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 07:33:09,698 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 07:33:09,699 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 07:33:09,701 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 07:33:09,703 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 07:33:09,704 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 07:33:09,705 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 07:33:09,706 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 07:33:09,708 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 07:33:09,708 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 07:33:09,708 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 07:33:09,709 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 07:33:09,710 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 07:33:09,711 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 07:33:09,711 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 07:33:09,712 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 07:33:09,712 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 07:33:09,713 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 07:33:09,714 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 07:33:09,714 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 07:33:09,715 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 07:33:09,715 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 07:33:09,715 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 07:33:09,716 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 07:33:09,717 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 07:33:09,718 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-VariableLbe.epf [2019-12-27 07:33:09,740 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 07:33:09,740 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 07:33:09,742 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 07:33:09,743 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 07:33:09,743 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 07:33:09,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 07:33:09,743 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 07:33:09,743 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 07:33:09,744 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 07:33:09,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 07:33:09,745 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 07:33:09,745 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 07:33:09,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 07:33:09,746 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 07:33:09,746 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 07:33:09,746 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 07:33:09,747 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 07:33:09,747 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 07:33:09,747 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 07:33:09,747 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 07:33:09,748 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 07:33:09,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 07:33:09,748 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 07:33:09,748 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 07:33:09,749 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 07:33:09,749 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 07:33:09,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 07:33:09,749 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 07:33:09,749 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 07:33:09,749 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 07:33:10,012 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 07:33:10,029 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 07:33:10,034 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 07:33:10,035 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 07:33:10,036 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 07:33:10,037 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_tso.opt.i [2019-12-27 07:33:10,104 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e89c1cc3/dcb17e243c8d4f18842269ba268d15b5/FLAG589ce2f93 [2019-12-27 07:33:10,669 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 07:33:10,670 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_tso.opt.i [2019-12-27 07:33:10,684 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e89c1cc3/dcb17e243c8d4f18842269ba268d15b5/FLAG589ce2f93 [2019-12-27 07:33:10,963 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e89c1cc3/dcb17e243c8d4f18842269ba268d15b5 [2019-12-27 07:33:10,972 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 07:33:10,973 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 07:33:10,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 07:33:10,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 07:33:10,977 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 07:33:10,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 07:33:10" (1/1) ... [2019-12-27 07:33:10,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2257a400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:33:10, skipping insertion in model container [2019-12-27 07:33:10,981 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 07:33:10" (1/1) ... [2019-12-27 07:33:10,989 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 07:33:11,039 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 07:33:11,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 07:33:11,477 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 07:33:11,523 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 07:33:11,611 INFO L208 MainTranslator]: Completed translation [2019-12-27 07:33:11,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:33:11 WrapperNode [2019-12-27 07:33:11,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 07:33:11,612 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 07:33:11,613 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 07:33:11,613 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 07:33:11,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:33:11" (1/1) ... [2019-12-27 07:33:11,641 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:33:11" (1/1) ... [2019-12-27 07:33:11,661 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 07:33:11,662 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 07:33:11,662 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 07:33:11,662 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 07:33:11,670 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:33:11" (1/1) ... [2019-12-27 07:33:11,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:33:11" (1/1) ... [2019-12-27 07:33:11,673 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:33:11" (1/1) ... [2019-12-27 07:33:11,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:33:11" (1/1) ... [2019-12-27 07:33:11,680 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:33:11" (1/1) ... [2019-12-27 07:33:11,682 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:33:11" (1/1) ... [2019-12-27 07:33:11,684 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:33:11" (1/1) ... [2019-12-27 07:33:11,687 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 07:33:11,688 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 07:33:11,688 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 07:33:11,688 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 07:33:11,689 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:33:11" (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 [2019-12-27 07:33:11,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 07:33:11,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 07:33:11,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 07:33:11,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 07:33:11,765 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 07:33:11,765 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 07:33:11,765 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 07:33:11,765 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 07:33:11,765 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 07:33:11,766 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 07:33:11,766 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 07:33:11,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 07:33:11,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 07:33:11,767 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 07:33:12,168 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 07:33:12,169 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 07:33:12,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 07:33:12 BoogieIcfgContainer [2019-12-27 07:33:12,170 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 07:33:12,171 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 07:33:12,172 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 07:33:12,175 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 07:33:12,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 07:33:10" (1/3) ... [2019-12-27 07:33:12,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67408f45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 07:33:12, skipping insertion in model container [2019-12-27 07:33:12,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:33:11" (2/3) ... [2019-12-27 07:33:12,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67408f45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 07:33:12, skipping insertion in model container [2019-12-27 07:33:12,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 07:33:12" (3/3) ... [2019-12-27 07:33:12,179 INFO L109 eAbstractionObserver]: Analyzing ICFG safe007_tso.opt.i [2019-12-27 07:33:12,188 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 07:33:12,188 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 07:33:12,195 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 07:33:12,196 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 07:33:12,220 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:12,221 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:12,221 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:12,222 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:12,222 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:12,222 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:12,223 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:12,223 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:12,223 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:12,223 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:12,224 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:12,224 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:12,224 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:12,224 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:12,225 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:12,225 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:12,225 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:12,226 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:12,229 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:12,230 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:12,230 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:12,231 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:12,237 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:12,237 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:12,237 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:12,238 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:12,240 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:12,241 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:12,241 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:12,241 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:12,258 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 07:33:12,277 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 07:33:12,277 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 07:33:12,277 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 07:33:12,278 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 07:33:12,278 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 07:33:12,278 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 07:33:12,278 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 07:33:12,278 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 07:33:12,292 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 55 transitions [2019-12-27 07:33:12,294 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions [2019-12-27 07:33:12,339 INFO L132 PetriNetUnfolder]: 1/52 cut-off events. [2019-12-27 07:33:12,340 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 07:33:12,346 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 52 events. 1/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/50 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 07:33:12,349 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions [2019-12-27 07:33:12,378 INFO L132 PetriNetUnfolder]: 1/52 cut-off events. [2019-12-27 07:33:12,379 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 07:33:12,382 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 52 events. 1/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/50 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 07:33:12,385 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 07:33:12,386 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 07:33:13,727 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-12-27 07:33:13,851 INFO L206 etLargeBlockEncoding]: Checked pairs total: 467 [2019-12-27 07:33:13,852 INFO L214 etLargeBlockEncoding]: Total number of compositions: 47 [2019-12-27 07:33:13,855 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 07:33:13,863 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 07:33:13,865 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 07:33:13,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 07:33:13,874 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:33:13,874 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:33:13,875 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:33:13,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:33:13,882 INFO L82 PathProgramCache]: Analyzing trace with hash 2019279745, now seen corresponding path program 1 times [2019-12-27 07:33:13,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:33:13,892 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457619733] [2019-12-27 07:33:13,893 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:33:14,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:33:14,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 07:33:14,134 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457619733] [2019-12-27 07:33:14,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:33:14,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 07:33:14,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151046211] [2019-12-27 07:33:14,143 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 07:33:14,143 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:33:14,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 07:33:14,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:33:14,169 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 07:33:14,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:33:14,211 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-27 07:33:14,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 07:33:14,214 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 07:33:14,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:33:14,244 INFO L225 Difference]: With dead ends: 42 [2019-12-27 07:33:14,244 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 07:33:14,249 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 [2019-12-27 07:33:14,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 07:33:14,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 07:33:14,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 07:33:14,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 07:33:14,302 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-27 07:33:14,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:33:14,303 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 07:33:14,303 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 07:33:14,303 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 07:33:14,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 07:33:14,305 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:33:14,306 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:33:14,306 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:33:14,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:33:14,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1392638966, now seen corresponding path program 1 times [2019-12-27 07:33:14,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:33:14,307 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896287692] [2019-12-27 07:33:14,308 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:33:14,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:33:14,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 07:33:14,415 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896287692] [2019-12-27 07:33:14,415 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:33:14,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 07:33:14,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015742274] [2019-12-27 07:33:14,417 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 07:33:14,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:33:14,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 07:33:14,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 07:33:14,418 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-27 07:33:14,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:33:14,446 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-27 07:33:14,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 07:33:14,446 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-27 07:33:14,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:33:14,447 INFO L225 Difference]: With dead ends: 36 [2019-12-27 07:33:14,447 INFO L226 Difference]: Without dead ends: 22 [2019-12-27 07:33:14,448 INFO L631 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 [2019-12-27 07:33:14,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-27 07:33:14,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-27 07:33:14,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-27 07:33:14,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 33 transitions. [2019-12-27 07:33:14,452 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 33 transitions. Word has length 9 [2019-12-27 07:33:14,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:33:14,453 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 33 transitions. [2019-12-27 07:33:14,453 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 07:33:14,453 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2019-12-27 07:33:14,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 07:33:14,454 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:33:14,454 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:33:14,454 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:33:14,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:33:14,454 INFO L82 PathProgramCache]: Analyzing trace with hash -794773568, now seen corresponding path program 1 times [2019-12-27 07:33:14,455 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:33:14,455 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317647343] [2019-12-27 07:33:14,455 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:33:14,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:33:14,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 07:33:14,529 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317647343] [2019-12-27 07:33:14,529 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:33:14,530 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 07:33:14,530 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485444789] [2019-12-27 07:33:14,530 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 07:33:14,530 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:33:14,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 07:33:14,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:33:14,532 INFO L87 Difference]: Start difference. First operand 22 states and 33 transitions. Second operand 3 states. [2019-12-27 07:33:14,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:33:14,539 INFO L93 Difference]: Finished difference Result 21 states and 31 transitions. [2019-12-27 07:33:14,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 07:33:14,540 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 07:33:14,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:33:14,540 INFO L225 Difference]: With dead ends: 21 [2019-12-27 07:33:14,541 INFO L226 Difference]: Without dead ends: 21 [2019-12-27 07:33:14,541 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 [2019-12-27 07:33:14,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-12-27 07:33:14,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-12-27 07:33:14,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-27 07:33:14,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 31 transitions. [2019-12-27 07:33:14,545 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 31 transitions. Word has length 10 [2019-12-27 07:33:14,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:33:14,546 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 31 transitions. [2019-12-27 07:33:14,546 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 07:33:14,546 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 31 transitions. [2019-12-27 07:33:14,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 07:33:14,548 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:33:14,548 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:33:14,548 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:33:14,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:33:14,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1131912426, now seen corresponding path program 1 times [2019-12-27 07:33:14,550 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:33:14,551 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638270352] [2019-12-27 07:33:14,551 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:33:14,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:33:14,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 07:33:14,604 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638270352] [2019-12-27 07:33:14,604 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:33:14,604 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 07:33:14,604 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313129059] [2019-12-27 07:33:14,605 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 07:33:14,606 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:33:14,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 07:33:14,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 07:33:14,607 INFO L87 Difference]: Start difference. First operand 21 states and 31 transitions. Second operand 4 states. [2019-12-27 07:33:14,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:33:14,630 INFO L93 Difference]: Finished difference Result 25 states and 35 transitions. [2019-12-27 07:33:14,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 07:33:14,630 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 07:33:14,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:33:14,631 INFO L225 Difference]: With dead ends: 25 [2019-12-27 07:33:14,631 INFO L226 Difference]: Without dead ends: 17 [2019-12-27 07:33:14,631 INFO L631 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 [2019-12-27 07:33:14,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-27 07:33:14,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-27 07:33:14,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-27 07:33:14,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-27 07:33:14,635 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 11 [2019-12-27 07:33:14,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:33:14,635 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-27 07:33:14,635 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 07:33:14,635 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-27 07:33:14,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 07:33:14,636 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:33:14,636 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:33:14,636 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:33:14,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:33:14,637 INFO L82 PathProgramCache]: Analyzing trace with hash 1139321736, now seen corresponding path program 2 times [2019-12-27 07:33:14,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:33:14,637 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722362977] [2019-12-27 07:33:14,637 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:33:14,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:33:14,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 07:33:14,689 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722362977] [2019-12-27 07:33:14,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:33:14,692 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 07:33:14,692 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047997896] [2019-12-27 07:33:14,692 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 07:33:14,693 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:33:14,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 07:33:14,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 07:33:14,693 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 4 states. [2019-12-27 07:33:14,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:33:14,709 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-27 07:33:14,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 07:33:14,709 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 07:33:14,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:33:14,710 INFO L225 Difference]: With dead ends: 16 [2019-12-27 07:33:14,710 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 07:33:14,710 INFO L631 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 [2019-12-27 07:33:14,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 07:33:14,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 07:33:14,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 07:33:14,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 07:33:14,711 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 07:33:14,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:33:14,712 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 07:33:14,712 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 07:33:14,712 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 07:33:14,712 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 07:33:14,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 07:33:14 BasicIcfg [2019-12-27 07:33:14,716 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 07:33:14,718 INFO L168 Benchmark]: Toolchain (without parser) took 3745.07 ms. Allocated memory was 146.3 MB in the beginning and 245.9 MB in the end (delta: 99.6 MB). Free memory was 101.2 MB in the beginning and 152.5 MB in the end (delta: -51.2 MB). Peak memory consumption was 48.4 MB. Max. memory is 7.1 GB. [2019-12-27 07:33:14,719 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 146.3 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-27 07:33:14,720 INFO L168 Benchmark]: CACSL2BoogieTranslator took 638.09 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 100.8 MB in the beginning and 160.9 MB in the end (delta: -60.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-27 07:33:14,721 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.25 ms. Allocated memory is still 203.9 MB. Free memory was 160.9 MB in the beginning and 158.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 07:33:14,722 INFO L168 Benchmark]: Boogie Preprocessor took 25.61 ms. Allocated memory is still 203.9 MB. Free memory was 158.9 MB in the beginning and 157.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 07:33:14,723 INFO L168 Benchmark]: RCFGBuilder took 482.51 ms. Allocated memory is still 203.9 MB. Free memory was 157.0 MB in the beginning and 136.8 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2019-12-27 07:33:14,724 INFO L168 Benchmark]: TraceAbstraction took 2545.00 ms. Allocated memory was 203.9 MB in the beginning and 245.9 MB in the end (delta: 41.9 MB). Free memory was 136.1 MB in the beginning and 152.5 MB in the end (delta: -16.4 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2019-12-27 07:33:14,729 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 146.3 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 638.09 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 100.8 MB in the beginning and 160.9 MB in the end (delta: -60.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.25 ms. Allocated memory is still 203.9 MB. Free memory was 160.9 MB in the beginning and 158.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.61 ms. Allocated memory is still 203.9 MB. Free memory was 158.9 MB in the beginning and 157.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 482.51 ms. Allocated memory is still 203.9 MB. Free memory was 157.0 MB in the beginning and 136.8 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2545.00 ms. Allocated memory was 203.9 MB in the beginning and 245.9 MB in the end (delta: 41.9 MB). Free memory was 136.1 MB in the beginning and 152.5 MB in the end (delta: -16.4 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 64 ProgramPointsBefore, 21 ProgramPointsAfterwards, 55 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 226 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 467 CheckedPairsTotal, 47 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, 55 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 51 SDtfs, 29 SDslu, 25 SDs, 0 SdLazy, 18 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 1182 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...