/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/safe036_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 20:05:53,123 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 20:05:53,126 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 20:05:53,146 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 20:05:53,146 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 20:05:53,148 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 20:05:53,150 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 20:05:53,161 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 20:05:53,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 20:05:53,168 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 20:05:53,170 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 20:05:53,171 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 20:05:53,171 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 20:05:53,172 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 20:05:53,173 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 20:05:53,174 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 20:05:53,174 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 20:05:53,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 20:05:53,177 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 20:05:53,180 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 20:05:53,183 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 20:05:53,187 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 20:05:53,188 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 20:05:53,189 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 20:05:53,193 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 20:05:53,194 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 20:05:53,194 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 20:05:53,196 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 20:05:53,198 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 20:05:53,200 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 20:05:53,201 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 20:05:53,202 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 20:05:53,204 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 20:05:53,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 20:05:53,207 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 20:05:53,207 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 20:05:53,208 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 20:05:53,208 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 20:05:53,208 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 20:05:53,209 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 20:05:53,210 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 20:05:53,211 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 20:05:53,241 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 20:05:53,242 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 20:05:53,243 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 20:05:53,244 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 20:05:53,244 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 20:05:53,244 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 20:05:53,244 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 20:05:53,244 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 20:05:53,245 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 20:05:53,245 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 20:05:53,246 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 20:05:53,246 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 20:05:53,246 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 20:05:53,247 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 20:05:53,247 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 20:05:53,247 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 20:05:53,247 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 20:05:53,248 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 20:05:53,248 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 20:05:53,248 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 20:05:53,248 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 20:05:53,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 20:05:53,249 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 20:05:53,249 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 20:05:53,249 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 20:05:53,249 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 20:05:53,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 20:05:53,250 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 20:05:53,250 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 20:05:53,250 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 20:05:53,251 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 20:05:53,560 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 20:05:53,586 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 20:05:53,591 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 20:05:53,593 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 20:05:53,594 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 20:05:53,595 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe036_tso.opt.i [2020-04-18 20:05:53,672 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47d475bb9/d2c7c55eb28d4e82a3cb25d51b04072b/FLAG58e2e5efd [2020-04-18 20:05:54,221 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 20:05:54,222 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036_tso.opt.i [2020-04-18 20:05:54,236 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47d475bb9/d2c7c55eb28d4e82a3cb25d51b04072b/FLAG58e2e5efd [2020-04-18 20:05:54,513 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47d475bb9/d2c7c55eb28d4e82a3cb25d51b04072b [2020-04-18 20:05:54,523 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 20:05:54,543 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 20:05:54,544 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 20:05:54,545 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 20:05:54,548 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 20:05:54,549 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:05:54" (1/1) ... [2020-04-18 20:05:54,552 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ad3e35f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:54, skipping insertion in model container [2020-04-18 20:05:54,552 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:05:54" (1/1) ... [2020-04-18 20:05:54,560 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 20:05:54,623 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 20:05:55,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 20:05:55,151 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 20:05:55,235 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 20:05:55,310 INFO L208 MainTranslator]: Completed translation [2020-04-18 20:05:55,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:55 WrapperNode [2020-04-18 20:05:55,311 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 20:05:55,312 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 20:05:55,312 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 20:05:55,312 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 20:05:55,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:55" (1/1) ... [2020-04-18 20:05:55,338 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:55" (1/1) ... [2020-04-18 20:05:55,359 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 20:05:55,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 20:05:55,359 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 20:05:55,359 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 20:05:55,366 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:55" (1/1) ... [2020-04-18 20:05:55,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:55" (1/1) ... [2020-04-18 20:05:55,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:55" (1/1) ... [2020-04-18 20:05:55,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:55" (1/1) ... [2020-04-18 20:05:55,376 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:55" (1/1) ... [2020-04-18 20:05:55,378 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:55" (1/1) ... [2020-04-18 20:05:55,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:55" (1/1) ... [2020-04-18 20:05:55,383 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 20:05:55,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 20:05:55,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 20:05:55,384 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 20:05:55,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:55" (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 20:05:55,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 20:05:55,451 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 20:05:55,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 20:05:55,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 20:05:55,452 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 20:05:55,452 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 20:05:55,452 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 20:05:55,452 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 20:05:55,452 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 20:05:55,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 20:05:55,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 20:05:55,454 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 20:05:55,776 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 20:05:55,777 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 20:05:55,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:05:55 BoogieIcfgContainer [2020-04-18 20:05:55,781 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 20:05:55,783 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 20:05:55,783 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 20:05:55,786 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 20:05:55,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 08:05:54" (1/3) ... [2020-04-18 20:05:55,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d3d9c5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:05:55, skipping insertion in model container [2020-04-18 20:05:55,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:55" (2/3) ... [2020-04-18 20:05:55,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d3d9c5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:05:55, skipping insertion in model container [2020-04-18 20:05:55,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:05:55" (3/3) ... [2020-04-18 20:05:55,790 INFO L109 eAbstractionObserver]: Analyzing ICFG safe036_tso.opt.i [2020-04-18 20:05:55,801 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 20:05:55,801 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 20:05:55,808 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 20:05:55,809 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 20:05:55,835 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:55,836 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:55,836 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:55,836 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:55,837 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:55,837 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:55,838 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:55,838 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:55,839 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:55,839 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:55,839 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:55,840 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:55,844 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:55,844 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:55,845 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:55,845 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:55,851 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:55,851 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:55,852 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:55,852 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:55,876 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-04-18 20:05:55,892 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 20:05:55,892 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 20:05:55,893 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 20:05:55,893 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 20:05:55,893 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 20:05:55,893 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 20:05:55,893 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 20:05:55,894 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 20:05:55,907 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 61 places, 56 transitions, 122 flow [2020-04-18 20:05:55,980 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1121 states. [2020-04-18 20:05:55,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states. [2020-04-18 20:05:56,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-04-18 20:05:56,002 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:05:56,003 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 20:05:56,004 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:05:56,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:05:56,011 INFO L82 PathProgramCache]: Analyzing trace with hash -328445311, now seen corresponding path program 1 times [2020-04-18 20:05:56,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:05:56,019 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1818788859] [2020-04-18 20:05:56,035 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:05:56,049 INFO L259 McrAutomatonBuilder]: Finished intersection with 32 states and 31 transitions. [2020-04-18 20:05:56,051 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2020-04-18 20:05:56,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-04-18 20:05:56,053 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:05:56,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:05:56,053 INFO L82 PathProgramCache]: Analyzing trace with hash -328445311, now seen corresponding path program 2 times [2020-04-18 20:05:56,057 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:05:56,058 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348248078] [2020-04-18 20:05:56,058 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:05:56,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:05:56,436 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 20:05:56,437 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348248078] [2020-04-18 20:05:56,438 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:05:56,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 20:05:56,440 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:05:56,444 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:05:56,453 INFO L259 McrAutomatonBuilder]: Finished intersection with 32 states and 31 transitions. [2020-04-18 20:05:56,456 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:05:56,531 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:05:56,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 20:05:56,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 20:05:56,538 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 6 states. [2020-04-18 20:05:56,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:05:56,611 INFO L93 Difference]: Finished difference Result 32 states and 31 transitions. [2020-04-18 20:05:56,611 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 31 transitions. [2020-04-18 20:05:56,612 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:05:56,613 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1818788859] [2020-04-18 20:05:56,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:05:56,614 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 20:05:56,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1818788859] [2020-04-18 20:05:56,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 20:05:56,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:05:56,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 20:05:56,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-04-18 20:05:56,622 INFO L87 Difference]: Start difference. First operand 1121 states. Second operand 6 states. [2020-04-18 20:05:56,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:05:56,765 INFO L93 Difference]: Finished difference Result 1046 states and 2616 transitions. [2020-04-18 20:05:56,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 20:05:56,768 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-04-18 20:05:56,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:05:56,796 INFO L225 Difference]: With dead ends: 1046 [2020-04-18 20:05:56,796 INFO L226 Difference]: Without dead ends: 504 [2020-04-18 20:05:56,799 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 29 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 20:05:56,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2020-04-18 20:05:56,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 504. [2020-04-18 20:05:56,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 504 states. [2020-04-18 20:05:56,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 1219 transitions. [2020-04-18 20:05:56,917 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 1219 transitions. Word has length 31 [2020-04-18 20:05:56,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:05:56,918 INFO L479 AbstractCegarLoop]: Abstraction has 504 states and 1219 transitions. [2020-04-18 20:05:56,918 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 20:05:56,918 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 1219 transitions. [2020-04-18 20:05:56,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-04-18 20:05:56,923 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:05:56,923 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 20:05:56,923 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:05:56,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:05:56,924 INFO L82 PathProgramCache]: Analyzing trace with hash 2045091331, now seen corresponding path program 1 times [2020-04-18 20:05:56,924 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:05:56,924 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1124803469] [2020-04-18 20:05:56,926 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:05:56,928 INFO L259 McrAutomatonBuilder]: Finished intersection with 100 states and 163 transitions. [2020-04-18 20:05:56,934 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states. [2020-04-18 20:05:56,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-04-18 20:05:56,938 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:05:56,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:05:56,943 INFO L82 PathProgramCache]: Analyzing trace with hash 2045091331, now seen corresponding path program 2 times [2020-04-18 20:05:56,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:05:56,944 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790307894] [2020-04-18 20:05:56,944 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:05:56,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:05:57,160 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 20:05:57,161 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790307894] [2020-04-18 20:05:57,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:05:57,162 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 20:05:57,162 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:05:57,165 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:05:57,170 INFO L259 McrAutomatonBuilder]: Finished intersection with 56 states and 75 transitions. [2020-04-18 20:05:57,171 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:05:57,223 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:05:57,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 20:05:57,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 20:05:57,224 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 7 states. [2020-04-18 20:05:57,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:05:57,392 INFO L93 Difference]: Finished difference Result 100 states and 163 transitions. [2020-04-18 20:05:57,392 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 163 transitions. [2020-04-18 20:05:57,394 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:05:57,395 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1124803469] [2020-04-18 20:05:57,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:05:57,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 20:05:57,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1124803469] [2020-04-18 20:05:57,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 20:05:57,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:05:57,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 20:05:57,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2020-04-18 20:05:57,399 INFO L87 Difference]: Start difference. First operand 504 states and 1219 transitions. Second operand 7 states. [2020-04-18 20:05:57,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:05:57,531 INFO L93 Difference]: Finished difference Result 372 states and 846 transitions. [2020-04-18 20:05:57,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 20:05:57,532 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-04-18 20:05:57,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:05:57,535 INFO L225 Difference]: With dead ends: 372 [2020-04-18 20:05:57,535 INFO L226 Difference]: Without dead ends: 240 [2020-04-18 20:05:57,537 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-04-18 20:05:57,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-04-18 20:05:57,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2020-04-18 20:05:57,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-04-18 20:05:57,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 515 transitions. [2020-04-18 20:05:57,552 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 515 transitions. Word has length 35 [2020-04-18 20:05:57,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:05:57,552 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 515 transitions. [2020-04-18 20:05:57,552 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 20:05:57,552 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 515 transitions. [2020-04-18 20:05:57,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 20:05:57,554 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:05:57,554 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, 1, 1, 1, 1] [2020-04-18 20:05:57,554 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:05:57,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:05:57,555 INFO L82 PathProgramCache]: Analyzing trace with hash -1256214719, now seen corresponding path program 1 times [2020-04-18 20:05:57,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:05:57,556 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [182931001] [2020-04-18 20:05:57,558 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:05:57,566 INFO L259 McrAutomatonBuilder]: Finished intersection with 360 states and 871 transitions. [2020-04-18 20:05:57,572 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states. [2020-04-18 20:05:57,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 20:05:57,574 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:05:57,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:05:57,575 INFO L82 PathProgramCache]: Analyzing trace with hash -1303635963, now seen corresponding path program 2 times [2020-04-18 20:05:57,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:05:57,575 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710123084] [2020-04-18 20:05:57,577 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:05:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:05:57,781 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 20:05:57,782 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710123084] [2020-04-18 20:05:57,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:05:57,783 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 20:05:57,783 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:05:57,788 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:05:57,803 INFO L259 McrAutomatonBuilder]: Finished intersection with 104 states and 172 transitions. [2020-04-18 20:05:57,804 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:05:57,867 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:05:57,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 20:05:57,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 20:05:57,868 INFO L87 Difference]: Start difference. First operand 360 states. Second operand 7 states. [2020-04-18 20:05:58,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:05:58,120 INFO L93 Difference]: Finished difference Result 370 states and 880 transitions. [2020-04-18 20:05:58,120 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 880 transitions. [2020-04-18 20:05:58,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 20:05:58,123 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 20:05:58,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:05:58,124 INFO L82 PathProgramCache]: Analyzing trace with hash -385252347, now seen corresponding path program 3 times [2020-04-18 20:05:58,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:05:58,125 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451259931] [2020-04-18 20:05:58,125 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:05:58,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:05:58,310 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 20:05:58,310 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451259931] [2020-04-18 20:05:58,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:05:58,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 20:05:58,311 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:05:58,315 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:05:58,325 INFO L259 McrAutomatonBuilder]: Finished intersection with 100 states and 165 transitions. [2020-04-18 20:05:58,325 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:05:58,437 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 7 times. [2020-04-18 20:05:58,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 20:05:58,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2020-04-18 20:05:58,438 INFO L87 Difference]: Start difference. First operand 370 states and 880 transitions. Second operand 7 states. [2020-04-18 20:05:58,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:05:58,561 INFO L93 Difference]: Finished difference Result 494 states and 1124 transitions. [2020-04-18 20:05:58,561 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 1124 transitions. [2020-04-18 20:05:58,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 20:05:58,563 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 20:05:58,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:05:58,564 INFO L82 PathProgramCache]: Analyzing trace with hash 341612163, now seen corresponding path program 4 times [2020-04-18 20:05:58,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:05:58,565 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94901093] [2020-04-18 20:05:58,565 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:05:58,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:05:58,712 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 20:05:58,713 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94901093] [2020-04-18 20:05:58,713 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:05:58,713 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 20:05:58,713 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:05:58,717 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:05:58,743 INFO L259 McrAutomatonBuilder]: Finished intersection with 136 states and 261 transitions. [2020-04-18 20:05:58,743 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:05:58,806 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 14 times. [2020-04-18 20:05:58,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 20:05:58,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=495, Unknown=0, NotChecked=0, Total=600 [2020-04-18 20:05:58,809 INFO L87 Difference]: Start difference. First operand 494 states and 1124 transitions. Second operand 7 states. [2020-04-18 20:05:59,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:05:59,039 INFO L93 Difference]: Finished difference Result 690 states and 1500 transitions. [2020-04-18 20:05:59,039 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1500 transitions. [2020-04-18 20:05:59,041 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:05:59,042 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [182931001] [2020-04-18 20:05:59,042 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:05:59,042 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 20:05:59,042 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [182931001] [2020-04-18 20:05:59,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-04-18 20:05:59,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:05:59,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-04-18 20:05:59,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=679, Unknown=0, NotChecked=0, Total=812 [2020-04-18 20:05:59,044 INFO L87 Difference]: Start difference. First operand 240 states and 515 transitions. Second operand 14 states. [2020-04-18 20:05:59,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:05:59,869 INFO L93 Difference]: Finished difference Result 464 states and 1015 transitions. [2020-04-18 20:05:59,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-04-18 20:05:59,869 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 39 [2020-04-18 20:05:59,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:05:59,870 INFO L225 Difference]: With dead ends: 464 [2020-04-18 20:05:59,870 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 20:05:59,872 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 713 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=456, Invalid=2300, Unknown=0, NotChecked=0, Total=2756 [2020-04-18 20:05:59,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 20:05:59,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 20:05:59,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 20:05:59,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 20:05:59,873 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2020-04-18 20:05:59,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:05:59,873 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 20:05:59,873 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-04-18 20:05:59,873 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 20:05:59,873 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:05:59,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 08:05:59 BasicIcfg [2020-04-18 20:05:59,879 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 20:05:59,882 INFO L168 Benchmark]: Toolchain (without parser) took 5356.97 ms. Allocated memory was 139.5 MB in the beginning and 287.3 MB in the end (delta: 147.8 MB). Free memory was 102.9 MB in the beginning and 240.7 MB in the end (delta: -137.7 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-04-18 20:05:59,883 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 139.5 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-04-18 20:05:59,884 INFO L168 Benchmark]: CACSL2BoogieTranslator took 766.90 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 101.0 MB in the beginning and 160.4 MB in the end (delta: -59.4 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. [2020-04-18 20:05:59,885 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.13 ms. Allocated memory is still 203.4 MB. Free memory was 160.4 MB in the beginning and 158.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 20:05:59,886 INFO L168 Benchmark]: Boogie Preprocessor took 23.96 ms. Allocated memory is still 203.4 MB. Free memory was 158.5 MB in the beginning and 157.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-04-18 20:05:59,887 INFO L168 Benchmark]: RCFGBuilder took 397.98 ms. Allocated memory is still 203.4 MB. Free memory was 157.2 MB in the beginning and 137.5 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 7.1 GB. [2020-04-18 20:05:59,888 INFO L168 Benchmark]: TraceAbstraction took 4096.86 ms. Allocated memory was 203.4 MB in the beginning and 287.3 MB in the end (delta: 83.9 MB). Free memory was 136.8 MB in the beginning and 240.7 MB in the end (delta: -103.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-04-18 20:05:59,892 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 139.5 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 766.90 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 101.0 MB in the beginning and 160.4 MB in the end (delta: -59.4 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.13 ms. Allocated memory is still 203.4 MB. Free memory was 160.4 MB in the beginning and 158.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 23.96 ms. Allocated memory is still 203.4 MB. Free memory was 158.5 MB in the beginning and 157.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 397.98 ms. Allocated memory is still 203.4 MB. Free memory was 157.2 MB in the beginning and 137.5 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4096.86 ms. Allocated memory was 203.4 MB in the beginning and 287.3 MB in the end (delta: 83.9 MB). Free memory was 136.8 MB in the beginning and 240.7 MB in the end (delta: -103.8 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, 55 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 216 SDtfs, 385 SDslu, 1134 SDs, 0 SdLazy, 263 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 276 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 747 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1121occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 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...