/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_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 20:05:52,425 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 20:05:52,429 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 20:05:52,447 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 20:05:52,448 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 20:05:52,450 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 20:05:52,451 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 20:05:52,461 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 20:05:52,464 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 20:05:52,467 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 20:05:52,469 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 20:05:52,471 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 20:05:52,471 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 20:05:52,473 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 20:05:52,476 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 20:05:52,477 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 20:05:52,479 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 20:05:52,479 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 20:05:52,481 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 20:05:52,485 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 20:05:52,490 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 20:05:52,493 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 20:05:52,494 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 20:05:52,495 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 20:05:52,497 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 20:05:52,497 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 20:05:52,497 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 20:05:52,499 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 20:05:52,501 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 20:05:52,501 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 20:05:52,502 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 20:05:52,502 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 20:05:52,503 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 20:05:52,504 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 20:05:52,505 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 20:05:52,505 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 20:05:52,506 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 20:05:52,506 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 20:05:52,506 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 20:05:52,507 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 20:05:52,508 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 20:05:52,509 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 20:05:52,545 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 20:05:52,545 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 20:05:52,546 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 20:05:52,546 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 20:05:52,547 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 20:05:52,547 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 20:05:52,549 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 20:05:52,549 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 20:05:52,549 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 20:05:52,550 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 20:05:52,550 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 20:05:52,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 20:05:52,550 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 20:05:52,550 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 20:05:52,551 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 20:05:52,551 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 20:05:52,551 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 20:05:52,551 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 20:05:52,551 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 20:05:52,552 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 20:05:52,552 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 20:05:52,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 20:05:52,554 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 20:05:52,554 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 20:05:52,555 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 20:05:52,555 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 20:05:52,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 20:05:52,555 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 20:05:52,555 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 20:05:52,556 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 20:05:52,556 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 20:05:52,885 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 20:05:52,906 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 20:05:52,910 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 20:05:52,911 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 20:05:52,912 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 20:05:52,913 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe036_rmo.opt.i [2020-04-18 20:05:52,981 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55b9692a4/0fa1ea349c74484582201c2f85b099ae/FLAG27c0d05c7 [2020-04-18 20:05:53,442 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 20:05:53,444 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036_rmo.opt.i [2020-04-18 20:05:53,464 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55b9692a4/0fa1ea349c74484582201c2f85b099ae/FLAG27c0d05c7 [2020-04-18 20:05:53,791 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55b9692a4/0fa1ea349c74484582201c2f85b099ae [2020-04-18 20:05:53,801 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 20:05:53,824 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 20:05:53,828 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 20:05:53,828 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 20:05:53,832 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 20:05:53,833 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:05:53" (1/1) ... [2020-04-18 20:05:53,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a67c07b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:53, skipping insertion in model container [2020-04-18 20:05:53,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:05:53" (1/1) ... [2020-04-18 20:05:53,845 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 20:05:53,902 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 20:05:54,415 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 20:05:54,425 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 20:05:54,476 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 20:05:54,567 INFO L208 MainTranslator]: Completed translation [2020-04-18 20:05:54,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:54 WrapperNode [2020-04-18 20:05:54,568 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 20:05:54,569 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 20:05:54,569 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 20:05:54,569 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 20:05:54,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:54" (1/1) ... [2020-04-18 20:05:54,603 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:54" (1/1) ... [2020-04-18 20:05:54,622 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 20:05:54,623 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 20:05:54,623 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 20:05:54,623 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 20:05:54,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:54" (1/1) ... [2020-04-18 20:05:54,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:54" (1/1) ... [2020-04-18 20:05:54,634 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:54" (1/1) ... [2020-04-18 20:05:54,634 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:54" (1/1) ... [2020-04-18 20:05:54,640 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:54" (1/1) ... [2020-04-18 20:05:54,642 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:54" (1/1) ... [2020-04-18 20:05:54,644 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:54" (1/1) ... [2020-04-18 20:05:54,647 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 20:05:54,647 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 20:05:54,647 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 20:05:54,648 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 20:05:54,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:54" (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 20:05:54,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 20:05:54,720 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 20:05:54,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 20:05:54,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 20:05:54,720 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 20:05:54,720 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 20:05:54,720 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 20:05:54,720 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 20:05:54,721 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 20:05:54,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 20:05:54,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 20:05:54,722 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 20:05:55,113 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 20:05:55,114 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 20:05:55,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:05:55 BoogieIcfgContainer [2020-04-18 20:05:55,122 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 20:05:55,123 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 20:05:55,123 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 20:05:55,128 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 20:05:55,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 08:05:53" (1/3) ... [2020-04-18 20:05:55,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ef1492c 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 20:05:55,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:54" (2/3) ... [2020-04-18 20:05:55,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ef1492c 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 20:05:55,132 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 20:05:55,133 INFO L109 eAbstractionObserver]: Analyzing ICFG safe036_rmo.opt.i [2020-04-18 20:05:55,141 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 20:05:55,141 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 20:05:55,147 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 20:05:55,148 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 20:05:55,168 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:55,168 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:55,169 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:55,169 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:55,169 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:55,170 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:55,170 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:55,170 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:55,170 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:55,171 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:55,171 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:55,171 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:55,175 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:55,175 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:55,175 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:55,176 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:55,188 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:55,188 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:55,189 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:55,189 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:55,205 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-04-18 20:05:55,223 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 20:05:55,224 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 20:05:55,224 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 20:05:55,224 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 20:05:55,224 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 20:05:55,224 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 20:05:55,225 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 20:05:55,225 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 20:05:55,236 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 61 places, 56 transitions, 122 flow [2020-04-18 20:05:55,307 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1121 states. [2020-04-18 20:05:55,310 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states. [2020-04-18 20:05:55,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-04-18 20:05:55,328 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:05:55,329 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 20:05:55,329 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:05:55,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:05:55,335 INFO L82 PathProgramCache]: Analyzing trace with hash -328445311, now seen corresponding path program 1 times [2020-04-18 20:05:55,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:05:55,343 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [967072985] [2020-04-18 20:05:55,358 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:05:55,369 INFO L259 McrAutomatonBuilder]: Finished intersection with 32 states and 31 transitions. [2020-04-18 20:05:55,371 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2020-04-18 20:05:55,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-04-18 20:05:55,372 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:05:55,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:05:55,373 INFO L82 PathProgramCache]: Analyzing trace with hash -328445311, now seen corresponding path program 2 times [2020-04-18 20:05:55,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:05:55,377 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152318537] [2020-04-18 20:05:55,377 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:05:55,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:05:55,790 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 20:05:55,791 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152318537] [2020-04-18 20:05:55,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:05:55,792 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 20:05:55,794 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:05:55,798 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:05:55,812 INFO L259 McrAutomatonBuilder]: Finished intersection with 32 states and 31 transitions. [2020-04-18 20:05:55,812 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:05:55,890 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:05:55,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 20:05:55,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 20:05:55,897 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 6 states. [2020-04-18 20:05:55,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:05:55,976 INFO L93 Difference]: Finished difference Result 32 states and 31 transitions. [2020-04-18 20:05:55,976 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 31 transitions. [2020-04-18 20:05:55,977 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:05:55,978 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [967072985] [2020-04-18 20:05:55,979 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:05:55,979 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 20:05:55,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [967072985] [2020-04-18 20:05:55,981 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 20:05:55,981 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:05:55,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 20:05:55,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-04-18 20:05:55,986 INFO L87 Difference]: Start difference. First operand 1121 states. Second operand 6 states. [2020-04-18 20:05:56,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:05:56,099 INFO L93 Difference]: Finished difference Result 1046 states and 2616 transitions. [2020-04-18 20:05:56,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 20:05:56,101 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-04-18 20:05:56,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:05:56,127 INFO L225 Difference]: With dead ends: 1046 [2020-04-18 20:05:56,127 INFO L226 Difference]: Without dead ends: 504 [2020-04-18 20:05:56,130 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 20:05:56,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2020-04-18 20:05:56,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 504. [2020-04-18 20:05:56,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 504 states. [2020-04-18 20:05:56,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 1219 transitions. [2020-04-18 20:05:56,221 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 1219 transitions. Word has length 31 [2020-04-18 20:05:56,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:05:56,222 INFO L479 AbstractCegarLoop]: Abstraction has 504 states and 1219 transitions. [2020-04-18 20:05:56,222 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 20:05:56,222 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 1219 transitions. [2020-04-18 20:05:56,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-04-18 20:05:56,225 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:05:56,225 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 20:05:56,226 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:05:56,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:05:56,226 INFO L82 PathProgramCache]: Analyzing trace with hash 2045091331, now seen corresponding path program 1 times [2020-04-18 20:05:56,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:05:56,227 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1057313224] [2020-04-18 20:05:56,228 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:05:56,229 INFO L259 McrAutomatonBuilder]: Finished intersection with 100 states and 163 transitions. [2020-04-18 20:05:56,230 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states. [2020-04-18 20:05:56,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-04-18 20:05:56,232 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:05:56,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:05:56,232 INFO L82 PathProgramCache]: Analyzing trace with hash 2045091331, now seen corresponding path program 2 times [2020-04-18 20:05:56,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:05:56,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923403470] [2020-04-18 20:05:56,233 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:05:56,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:05:56,426 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 20:05:56,426 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923403470] [2020-04-18 20:05:56,427 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:05:56,427 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 20:05:56,427 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:05:56,430 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:05:56,435 INFO L259 McrAutomatonBuilder]: Finished intersection with 56 states and 75 transitions. [2020-04-18 20:05:56,436 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:05:56,473 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:05:56,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 20:05:56,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 20:05:56,474 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 7 states. [2020-04-18 20:05:56,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:05:56,602 INFO L93 Difference]: Finished difference Result 100 states and 163 transitions. [2020-04-18 20:05:56,602 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 163 transitions. [2020-04-18 20:05:56,602 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:05:56,603 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1057313224] [2020-04-18 20:05:56,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:05:56,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 20:05:56,604 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1057313224] [2020-04-18 20:05:56,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 20:05:56,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:05:56,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 20:05:56,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2020-04-18 20:05:56,607 INFO L87 Difference]: Start difference. First operand 504 states and 1219 transitions. Second operand 7 states. [2020-04-18 20:05:56,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:05:56,732 INFO L93 Difference]: Finished difference Result 372 states and 846 transitions. [2020-04-18 20:05:56,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 20:05:56,733 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-04-18 20:05:56,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:05:56,737 INFO L225 Difference]: With dead ends: 372 [2020-04-18 20:05:56,737 INFO L226 Difference]: Without dead ends: 240 [2020-04-18 20:05:56,740 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-04-18 20:05:56,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-04-18 20:05:56,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2020-04-18 20:05:56,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-04-18 20:05:56,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 515 transitions. [2020-04-18 20:05:56,774 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 515 transitions. Word has length 35 [2020-04-18 20:05:56,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:05:56,775 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 515 transitions. [2020-04-18 20:05:56,775 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 20:05:56,775 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 515 transitions. [2020-04-18 20:05:56,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 20:05:56,780 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:05:56,780 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 20:05:56,780 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:05:56,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:05:56,781 INFO L82 PathProgramCache]: Analyzing trace with hash -1256214719, now seen corresponding path program 1 times [2020-04-18 20:05:56,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:05:56,781 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [395980462] [2020-04-18 20:05:56,785 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:05:56,792 INFO L259 McrAutomatonBuilder]: Finished intersection with 360 states and 871 transitions. [2020-04-18 20:05:56,798 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states. [2020-04-18 20:05:56,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 20:05:56,802 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:05:56,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:05:56,803 INFO L82 PathProgramCache]: Analyzing trace with hash -1303635963, now seen corresponding path program 2 times [2020-04-18 20:05:56,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:05:56,804 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487678638] [2020-04-18 20:05:56,804 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:05:56,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:05:57,019 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 20:05:57,019 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487678638] [2020-04-18 20:05:57,020 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:05:57,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 20:05:57,020 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:05:57,025 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:05:57,062 INFO L259 McrAutomatonBuilder]: Finished intersection with 104 states and 172 transitions. [2020-04-18 20:05:57,063 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:05:57,099 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:05:57,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 20:05:57,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 20:05:57,100 INFO L87 Difference]: Start difference. First operand 360 states. Second operand 7 states. [2020-04-18 20:05:57,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:05:57,313 INFO L93 Difference]: Finished difference Result 370 states and 880 transitions. [2020-04-18 20:05:57,313 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 880 transitions. [2020-04-18 20:05:57,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 20:05:57,314 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 20:05:57,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:05:57,314 INFO L82 PathProgramCache]: Analyzing trace with hash -385252347, now seen corresponding path program 3 times [2020-04-18 20:05:57,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:05:57,315 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148850103] [2020-04-18 20:05:57,315 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:05:57,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:05:57,433 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 20:05:57,433 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148850103] [2020-04-18 20:05:57,434 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:05:57,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 20:05:57,434 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:05:57,438 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:05:57,448 INFO L259 McrAutomatonBuilder]: Finished intersection with 100 states and 165 transitions. [2020-04-18 20:05:57,449 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:05:57,543 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 7 times. [2020-04-18 20:05:57,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 20:05:57,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2020-04-18 20:05:57,544 INFO L87 Difference]: Start difference. First operand 370 states and 880 transitions. Second operand 7 states. [2020-04-18 20:05:57,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:05:57,654 INFO L93 Difference]: Finished difference Result 494 states and 1124 transitions. [2020-04-18 20:05:57,655 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 1124 transitions. [2020-04-18 20:05:57,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 20:05:57,657 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 20:05:57,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:05:57,658 INFO L82 PathProgramCache]: Analyzing trace with hash 341612163, now seen corresponding path program 4 times [2020-04-18 20:05:57,658 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:05:57,658 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731888696] [2020-04-18 20:05:57,659 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:05:57,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:05:57,809 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 20:05:57,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731888696] [2020-04-18 20:05:57,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:05:57,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 20:05:57,810 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:05:57,814 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:05:57,845 INFO L259 McrAutomatonBuilder]: Finished intersection with 136 states and 261 transitions. [2020-04-18 20:05:57,845 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:05:57,941 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 14 times. [2020-04-18 20:05:57,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 20:05:57,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=495, Unknown=0, NotChecked=0, Total=600 [2020-04-18 20:05:57,942 INFO L87 Difference]: Start difference. First operand 494 states and 1124 transitions. Second operand 7 states. [2020-04-18 20:05:58,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:05:58,065 INFO L93 Difference]: Finished difference Result 690 states and 1500 transitions. [2020-04-18 20:05:58,066 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1500 transitions. [2020-04-18 20:05:58,067 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:05:58,073 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [395980462] [2020-04-18 20:05:58,073 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:05:58,074 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 20:05:58,074 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [395980462] [2020-04-18 20:05:58,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-04-18 20:05:58,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:05:58,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-04-18 20:05:58,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=679, Unknown=0, NotChecked=0, Total=812 [2020-04-18 20:05:58,076 INFO L87 Difference]: Start difference. First operand 240 states and 515 transitions. Second operand 14 states. [2020-04-18 20:05:58,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:05:58,874 INFO L93 Difference]: Finished difference Result 464 states and 1015 transitions. [2020-04-18 20:05:58,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-04-18 20:05:58,875 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 39 [2020-04-18 20:05:58,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:05:58,875 INFO L225 Difference]: With dead ends: 464 [2020-04-18 20:05:58,876 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 20:05:58,877 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 713 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=456, Invalid=2300, Unknown=0, NotChecked=0, Total=2756 [2020-04-18 20:05:58,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 20:05:58,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 20:05:58,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 20:05:58,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 20:05:58,878 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2020-04-18 20:05:58,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:05:58,878 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 20:05:58,879 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-04-18 20:05:58,879 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 20:05:58,879 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:05:58,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 08:05:58 BasicIcfg [2020-04-18 20:05:58,884 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 20:05:58,887 INFO L168 Benchmark]: Toolchain (without parser) took 5083.71 ms. Allocated memory was 147.8 MB in the beginning and 287.8 MB in the end (delta: 140.0 MB). Free memory was 103.5 MB in the beginning and 227.0 MB in the end (delta: -123.5 MB). Peak memory consumption was 16.4 MB. Max. memory is 7.1 GB. [2020-04-18 20:05:58,888 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 147.8 MB. Free memory was 124.2 MB in the beginning and 124.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-04-18 20:05:58,889 INFO L168 Benchmark]: CACSL2BoogieTranslator took 740.34 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 101.6 MB in the beginning and 162.0 MB in the end (delta: -60.3 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2020-04-18 20:05:58,889 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.66 ms. Allocated memory is still 205.0 MB. Free memory was 162.0 MB in the beginning and 160.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 20:05:58,890 INFO L168 Benchmark]: Boogie Preprocessor took 24.40 ms. Allocated memory is still 205.0 MB. Free memory was 160.0 MB in the beginning and 158.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-04-18 20:05:58,891 INFO L168 Benchmark]: RCFGBuilder took 474.48 ms. Allocated memory is still 205.0 MB. Free memory was 158.6 MB in the beginning and 138.7 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2020-04-18 20:05:58,892 INFO L168 Benchmark]: TraceAbstraction took 3760.95 ms. Allocated memory was 205.0 MB in the beginning and 287.8 MB in the end (delta: 82.8 MB). Free memory was 138.0 MB in the beginning and 227.0 MB in the end (delta: -89.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-04-18 20:05:58,895 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 147.8 MB. Free memory was 124.2 MB in the beginning and 124.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 740.34 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 101.6 MB in the beginning and 162.0 MB in the end (delta: -60.3 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 53.66 ms. Allocated memory is still 205.0 MB. Free memory was 162.0 MB in the beginning and 160.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.40 ms. Allocated memory is still 205.0 MB. Free memory was 160.0 MB in the beginning and 158.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 474.48 ms. Allocated memory is still 205.0 MB. Free memory was 158.6 MB in the beginning and 138.7 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3760.95 ms. Allocated memory was 205.0 MB in the beginning and 287.8 MB in the end (delta: 82.8 MB). Free memory was 138.0 MB in the beginning and 227.0 MB in the end (delta: -89.0 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: 3.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.0s, 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, 1.3s 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...