/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-NoLbe-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe029_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 19:55:24,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 19:55:24,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 19:55:24,158 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 19:55:24,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 19:55:24,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 19:55:24,161 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 19:55:24,162 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 19:55:24,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 19:55:24,165 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 19:55:24,166 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 19:55:24,167 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 19:55:24,167 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 19:55:24,168 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 19:55:24,169 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 19:55:24,170 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 19:55:24,171 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 19:55:24,172 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 19:55:24,174 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 19:55:24,176 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 19:55:24,178 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 19:55:24,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 19:55:24,180 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 19:55:24,181 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 19:55:24,184 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 19:55:24,184 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 19:55:24,184 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 19:55:24,185 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 19:55:24,186 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 19:55:24,187 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 19:55:24,187 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 19:55:24,189 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 19:55:24,190 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 19:55:24,191 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 19:55:24,192 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 19:55:24,192 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 19:55:24,193 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 19:55:24,193 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 19:55:24,193 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 19:55:24,197 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 19:55:24,198 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 19:55:24,199 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-NoLbe-McrStrategy.epf [2020-04-18 19:55:24,217 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 19:55:24,217 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 19:55:24,219 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 19:55:24,219 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 19:55:24,219 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 19:55:24,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 19:55:24,220 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 19:55:24,220 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 19:55:24,220 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 19:55:24,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 19:55:24,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 19:55:24,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 19:55:24,221 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 19:55:24,221 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 19:55:24,221 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 19:55:24,221 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 19:55:24,222 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 19:55:24,222 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 19:55:24,222 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 19:55:24,222 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 19:55:24,222 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 19:55:24,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 19:55:24,223 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 19:55:24,223 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 19:55:24,223 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 19:55:24,223 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 19:55:24,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 19:55:24,224 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 19:55:24,224 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 19:55:24,224 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 19:55:24,224 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 19:55:24,510 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 19:55:24,523 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 19:55:24,526 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 19:55:24,528 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 19:55:24,528 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 19:55:24,529 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe029_tso.opt.i [2020-04-18 19:55:24,587 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db3d16d8c/c7fc1c3d416144d2918b19b4f1202e9d/FLAG4f7493ed1 [2020-04-18 19:55:25,089 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 19:55:25,090 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe029_tso.opt.i [2020-04-18 19:55:25,108 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db3d16d8c/c7fc1c3d416144d2918b19b4f1202e9d/FLAG4f7493ed1 [2020-04-18 19:55:25,425 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db3d16d8c/c7fc1c3d416144d2918b19b4f1202e9d [2020-04-18 19:55:25,435 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 19:55:25,452 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 19:55:25,453 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 19:55:25,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 19:55:25,457 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 19:55:25,458 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:55:25" (1/1) ... [2020-04-18 19:55:25,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@629f08f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:55:25, skipping insertion in model container [2020-04-18 19:55:25,461 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:55:25" (1/1) ... [2020-04-18 19:55:25,469 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 19:55:25,523 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 19:55:25,994 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 19:55:26,011 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 19:55:26,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 19:55:26,169 INFO L208 MainTranslator]: Completed translation [2020-04-18 19:55:26,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:55:26 WrapperNode [2020-04-18 19:55:26,170 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 19:55:26,171 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 19:55:26,171 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 19:55:26,171 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 19:55:26,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:55:26" (1/1) ... [2020-04-18 19:55:26,202 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:55:26" (1/1) ... [2020-04-18 19:55:26,221 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 19:55:26,221 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 19:55:26,222 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 19:55:26,222 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 19:55:26,231 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:55:26" (1/1) ... [2020-04-18 19:55:26,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:55:26" (1/1) ... [2020-04-18 19:55:26,234 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:55:26" (1/1) ... [2020-04-18 19:55:26,235 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:55:26" (1/1) ... [2020-04-18 19:55:26,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:55:26" (1/1) ... [2020-04-18 19:55:26,243 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:55:26" (1/1) ... [2020-04-18 19:55:26,245 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:55:26" (1/1) ... [2020-04-18 19:55:26,248 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 19:55:26,248 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 19:55:26,249 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 19:55:26,249 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 19:55:26,250 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:55:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 19:55:26,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 19:55:26,315 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 19:55:26,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 19:55:26,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 19:55:26,316 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 19:55:26,316 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 19:55:26,317 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 19:55:26,317 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 19:55:26,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 19:55:26,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 19:55:26,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 19:55:26,320 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 19:55:26,684 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 19:55:26,684 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 19:55:26,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:55:26 BoogieIcfgContainer [2020-04-18 19:55:26,688 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 19:55:26,690 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 19:55:26,690 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 19:55:26,693 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 19:55:26,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:55:25" (1/3) ... [2020-04-18 19:55:26,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@380cf2d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:55:26, skipping insertion in model container [2020-04-18 19:55:26,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:55:26" (2/3) ... [2020-04-18 19:55:26,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@380cf2d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:55:26, skipping insertion in model container [2020-04-18 19:55:26,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:55:26" (3/3) ... [2020-04-18 19:55:26,697 INFO L109 eAbstractionObserver]: Analyzing ICFG safe029_tso.opt.i [2020-04-18 19:55:26,707 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 19:55:26,707 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 19:55:26,713 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 19:55:26,715 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 19:55:26,739 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:55:26,739 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:55:26,740 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:55:26,740 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:55:26,741 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:55:26,741 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:55:26,741 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:55:26,742 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:55:26,742 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:55:26,742 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:55:26,743 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:55:26,743 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:55:26,747 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:55:26,747 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:55:26,748 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:55:26,748 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:55:26,757 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:55:26,757 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:55:26,757 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:55:26,758 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:55:26,772 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-04-18 19:55:26,794 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 19:55:26,794 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 19:55:26,795 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 19:55:26,795 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 19:55:26,795 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 19:55:26,795 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 19:55:26,795 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 19:55:26,796 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 19:55:26,812 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 59 places, 54 transitions, 118 flow [2020-04-18 19:55:26,888 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1119 states. [2020-04-18 19:55:26,891 INFO L276 IsEmpty]: Start isEmpty. Operand 1119 states. [2020-04-18 19:55:26,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-04-18 19:55:26,917 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:55:26,921 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:55:26,921 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:55:26,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:55:26,929 INFO L82 PathProgramCache]: Analyzing trace with hash -644918262, now seen corresponding path program 1 times [2020-04-18 19:55:26,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:55:26,937 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1217764855] [2020-04-18 19:55:26,955 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:55:26,970 INFO L259 McrAutomatonBuilder]: Finished intersection with 30 states and 29 transitions. [2020-04-18 19:55:26,972 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-04-18 19:55:26,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-04-18 19:55:26,974 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:55:26,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:55:26,974 INFO L82 PathProgramCache]: Analyzing trace with hash -644918262, now seen corresponding path program 2 times [2020-04-18 19:55:26,978 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:55:26,979 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983954171] [2020-04-18 19:55:26,979 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:55:27,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:55:27,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:55:27,475 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983954171] [2020-04-18 19:55:27,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:55:27,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:55:27,478 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:55:27,481 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:55:27,493 INFO L259 McrAutomatonBuilder]: Finished intersection with 30 states and 29 transitions. [2020-04-18 19:55:27,494 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:55:27,590 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 19:55:27,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:55:27,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 19:55:27,596 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 7 states. [2020-04-18 19:55:27,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:55:27,690 INFO L93 Difference]: Finished difference Result 30 states and 29 transitions. [2020-04-18 19:55:27,690 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 29 transitions. [2020-04-18 19:55:27,691 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:55:27,692 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1217764855] [2020-04-18 19:55:27,692 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:55:27,693 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:55:27,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1217764855] [2020-04-18 19:55:27,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 19:55:27,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:55:27,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:55:27,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-04-18 19:55:27,701 INFO L87 Difference]: Start difference. First operand 1119 states. Second operand 7 states. [2020-04-18 19:55:27,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:55:27,991 INFO L93 Difference]: Finished difference Result 1783 states and 4675 transitions. [2020-04-18 19:55:27,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-04-18 19:55:27,993 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 29 [2020-04-18 19:55:27,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:55:28,024 INFO L225 Difference]: With dead ends: 1783 [2020-04-18 19:55:28,024 INFO L226 Difference]: Without dead ends: 530 [2020-04-18 19:55:28,030 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-04-18 19:55:28,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2020-04-18 19:55:28,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 482. [2020-04-18 19:55:28,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2020-04-18 19:55:28,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 1147 transitions. [2020-04-18 19:55:28,123 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 1147 transitions. Word has length 29 [2020-04-18 19:55:28,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:55:28,124 INFO L479 AbstractCegarLoop]: Abstraction has 482 states and 1147 transitions. [2020-04-18 19:55:28,124 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 19:55:28,124 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 1147 transitions. [2020-04-18 19:55:28,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-04-18 19:55:28,126 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:55:28,126 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:55:28,126 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:55:28,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:55:28,127 INFO L82 PathProgramCache]: Analyzing trace with hash 573596969, now seen corresponding path program 1 times [2020-04-18 19:55:28,127 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:55:28,127 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [417731941] [2020-04-18 19:55:28,128 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:55:28,129 INFO L259 McrAutomatonBuilder]: Finished intersection with 56 states and 79 transitions. [2020-04-18 19:55:28,129 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2020-04-18 19:55:28,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-04-18 19:55:28,130 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:55:28,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:55:28,131 INFO L82 PathProgramCache]: Analyzing trace with hash 573596969, now seen corresponding path program 2 times [2020-04-18 19:55:28,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:55:28,131 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243060444] [2020-04-18 19:55:28,132 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:55:28,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:55:28,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:55:28,381 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243060444] [2020-04-18 19:55:28,381 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:55:28,381 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-04-18 19:55:28,382 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:55:28,384 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:55:28,388 INFO L259 McrAutomatonBuilder]: Finished intersection with 44 states and 55 transitions. [2020-04-18 19:55:28,388 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:55:28,467 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times. [2020-04-18 19:55:28,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 19:55:28,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-04-18 19:55:28,468 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 9 states. [2020-04-18 19:55:28,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:55:28,580 INFO L93 Difference]: Finished difference Result 56 states and 79 transitions. [2020-04-18 19:55:28,580 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 79 transitions. [2020-04-18 19:55:28,581 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:55:28,581 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [417731941] [2020-04-18 19:55:28,582 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:55:28,582 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-04-18 19:55:28,582 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [417731941] [2020-04-18 19:55:28,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-04-18 19:55:28,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:55:28,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 19:55:28,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-04-18 19:55:28,584 INFO L87 Difference]: Start difference. First operand 482 states and 1147 transitions. Second operand 9 states. [2020-04-18 19:55:29,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:55:29,323 INFO L93 Difference]: Finished difference Result 786 states and 1858 transitions. [2020-04-18 19:55:29,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-04-18 19:55:29,324 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 31 [2020-04-18 19:55:29,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:55:29,328 INFO L225 Difference]: With dead ends: 786 [2020-04-18 19:55:29,329 INFO L226 Difference]: Without dead ends: 566 [2020-04-18 19:55:29,331 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=275, Invalid=655, Unknown=0, NotChecked=0, Total=930 [2020-04-18 19:55:29,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2020-04-18 19:55:29,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 422. [2020-04-18 19:55:29,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 422 states. [2020-04-18 19:55:29,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 987 transitions. [2020-04-18 19:55:29,365 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 987 transitions. Word has length 31 [2020-04-18 19:55:29,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:55:29,365 INFO L479 AbstractCegarLoop]: Abstraction has 422 states and 987 transitions. [2020-04-18 19:55:29,366 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-04-18 19:55:29,366 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 987 transitions. [2020-04-18 19:55:29,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-04-18 19:55:29,367 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:55:29,368 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:55:29,368 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:55:29,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:55:29,368 INFO L82 PathProgramCache]: Analyzing trace with hash 1504200170, now seen corresponding path program 1 times [2020-04-18 19:55:29,369 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:55:29,369 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1364832941] [2020-04-18 19:55:29,370 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:55:29,372 INFO L259 McrAutomatonBuilder]: Finished intersection with 142 states and 297 transitions. [2020-04-18 19:55:29,373 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states. [2020-04-18 19:55:29,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-04-18 19:55:29,374 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:55:29,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:55:29,375 INFO L82 PathProgramCache]: Analyzing trace with hash 1504200170, now seen corresponding path program 2 times [2020-04-18 19:55:29,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:55:29,376 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415781705] [2020-04-18 19:55:29,376 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:55:29,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:55:29,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:55:29,519 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415781705] [2020-04-18 19:55:29,520 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:55:29,520 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 19:55:29,520 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:55:29,523 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:55:29,532 INFO L259 McrAutomatonBuilder]: Finished intersection with 94 states and 177 transitions. [2020-04-18 19:55:29,533 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:55:29,593 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 10 times. [2020-04-18 19:55:29,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:55:29,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 19:55:29,597 INFO L87 Difference]: Start difference. First operand 142 states. Second operand 6 states. [2020-04-18 19:55:29,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:55:29,652 INFO L93 Difference]: Finished difference Result 142 states and 297 transitions. [2020-04-18 19:55:29,652 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 297 transitions. [2020-04-18 19:55:29,653 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:55:29,655 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1364832941] [2020-04-18 19:55:29,656 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:55:29,656 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 19:55:29,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1364832941] [2020-04-18 19:55:29,656 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 19:55:29,657 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:55:29,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:55:29,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-04-18 19:55:29,657 INFO L87 Difference]: Start difference. First operand 422 states and 987 transitions. Second operand 6 states. [2020-04-18 19:55:29,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:55:29,735 INFO L93 Difference]: Finished difference Result 455 states and 1025 transitions. [2020-04-18 19:55:29,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 19:55:29,736 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-04-18 19:55:29,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:55:29,740 INFO L225 Difference]: With dead ends: 455 [2020-04-18 19:55:29,740 INFO L226 Difference]: Without dead ends: 321 [2020-04-18 19:55:29,741 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-04-18 19:55:29,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-04-18 19:55:29,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 321. [2020-04-18 19:55:29,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-04-18 19:55:29,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 706 transitions. [2020-04-18 19:55:29,764 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 706 transitions. Word has length 33 [2020-04-18 19:55:29,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:55:29,765 INFO L479 AbstractCegarLoop]: Abstraction has 321 states and 706 transitions. [2020-04-18 19:55:29,765 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 19:55:29,765 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 706 transitions. [2020-04-18 19:55:29,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-04-18 19:55:29,769 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:55:29,769 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:55:29,769 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:55:29,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:55:29,769 INFO L82 PathProgramCache]: Analyzing trace with hash -45913429, now seen corresponding path program 1 times [2020-04-18 19:55:29,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:55:29,770 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [757607698] [2020-04-18 19:55:29,771 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:55:29,774 INFO L259 McrAutomatonBuilder]: Finished intersection with 228 states and 515 transitions. [2020-04-18 19:55:29,777 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states. [2020-04-18 19:55:29,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-04-18 19:55:29,779 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:55:29,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:55:29,780 INFO L82 PathProgramCache]: Analyzing trace with hash -45913429, now seen corresponding path program 2 times [2020-04-18 19:55:29,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:55:29,783 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774700397] [2020-04-18 19:55:29,783 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:55:29,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:55:29,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:55:29,958 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774700397] [2020-04-18 19:55:29,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:55:29,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:55:29,958 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:55:29,961 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:55:29,968 INFO L259 McrAutomatonBuilder]: Finished intersection with 84 states and 137 transitions. [2020-04-18 19:55:29,968 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:55:30,003 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 19:55:30,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:55:30,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 19:55:30,004 INFO L87 Difference]: Start difference. First operand 228 states. Second operand 7 states. [2020-04-18 19:55:30,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:55:30,143 INFO L93 Difference]: Finished difference Result 228 states and 515 transitions. [2020-04-18 19:55:30,143 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 515 transitions. [2020-04-18 19:55:30,144 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:55:30,144 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [757607698] [2020-04-18 19:55:30,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:55:30,144 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:55:30,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [757607698] [2020-04-18 19:55:30,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 19:55:30,145 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:55:30,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:55:30,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2020-04-18 19:55:30,146 INFO L87 Difference]: Start difference. First operand 321 states and 706 transitions. Second operand 7 states. [2020-04-18 19:55:30,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:55:30,176 INFO L93 Difference]: Finished difference Result 177 states and 361 transitions. [2020-04-18 19:55:30,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-18 19:55:30,176 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-04-18 19:55:30,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:55:30,177 INFO L225 Difference]: With dead ends: 177 [2020-04-18 19:55:30,177 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 19:55:30,177 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2020-04-18 19:55:30,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 19:55:30,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 19:55:30,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 19:55:30,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 19:55:30,178 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2020-04-18 19:55:30,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:55:30,179 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 19:55:30,179 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 19:55:30,179 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 19:55:30,179 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:55:30,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 07:55:30 BasicIcfg [2020-04-18 19:55:30,188 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 19:55:30,193 INFO L168 Benchmark]: Toolchain (without parser) took 4753.20 ms. Allocated memory was 137.4 MB in the beginning and 251.1 MB in the end (delta: 113.8 MB). Free memory was 100.6 MB in the beginning and 193.0 MB in the end (delta: -92.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. [2020-04-18 19:55:30,194 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 137.4 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-04-18 19:55:30,200 INFO L168 Benchmark]: CACSL2BoogieTranslator took 717.57 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 98.8 MB in the beginning and 156.8 MB in the end (delta: -58.1 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2020-04-18 19:55:30,201 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.11 ms. Allocated memory is still 201.3 MB. Free memory was 156.1 MB in the beginning and 154.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-04-18 19:55:30,202 INFO L168 Benchmark]: Boogie Preprocessor took 26.62 ms. Allocated memory is still 201.3 MB. Free memory was 154.0 MB in the beginning and 152.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-04-18 19:55:30,203 INFO L168 Benchmark]: RCFGBuilder took 440.11 ms. Allocated memory is still 201.3 MB. Free memory was 152.7 MB in the beginning and 133.4 MB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 7.1 GB. [2020-04-18 19:55:30,203 INFO L168 Benchmark]: TraceAbstraction took 3498.72 ms. Allocated memory was 201.3 MB in the beginning and 251.1 MB in the end (delta: 49.8 MB). Free memory was 132.7 MB in the beginning and 193.0 MB in the end (delta: -60.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-04-18 19:55:30,217 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 137.4 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 717.57 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 98.8 MB in the beginning and 156.8 MB in the end (delta: -58.1 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.11 ms. Allocated memory is still 201.3 MB. Free memory was 156.1 MB in the beginning and 154.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.62 ms. Allocated memory is still 201.3 MB. Free memory was 154.0 MB in the beginning and 152.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 440.11 ms. Allocated memory is still 201.3 MB. Free memory was 152.7 MB in the beginning and 133.4 MB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3498.72 ms. Allocated memory was 201.3 MB in the beginning and 251.1 MB in the end (delta: 49.8 MB). Free memory was 132.7 MB in the beginning and 193.0 MB in the end (delta: -60.3 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 53 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 264 SDtfs, 524 SDslu, 1013 SDs, 0 SdLazy, 233 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 196 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1119occurred 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: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 192 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...