/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-lit/fkp2013_variant-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 20:10:02,773 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 20:10:02,776 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 20:10:02,794 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 20:10:02,795 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 20:10:02,797 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 20:10:02,799 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 20:10:02,808 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 20:10:02,812 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 20:10:02,815 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 20:10:02,817 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 20:10:02,818 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 20:10:02,819 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 20:10:02,820 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 20:10:02,823 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 20:10:02,824 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 20:10:02,826 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 20:10:02,826 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 20:10:02,828 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 20:10:02,832 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 20:10:02,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 20:10:02,841 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 20:10:02,842 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 20:10:02,842 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 20:10:02,845 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 20:10:02,845 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 20:10:02,845 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 20:10:02,847 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 20:10:02,848 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 20:10:02,849 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 20:10:02,849 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 20:10:02,851 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 20:10:02,852 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 20:10:02,852 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 20:10:02,854 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 20:10:02,854 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 20:10:02,855 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 20:10:02,855 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 20:10:02,855 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 20:10:02,856 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 20:10:02,857 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 20:10:02,858 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 20:10:02,886 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 20:10:02,887 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 20:10:02,889 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 20:10:02,889 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 20:10:02,889 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 20:10:02,890 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 20:10:02,890 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 20:10:02,890 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 20:10:02,890 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 20:10:02,890 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 20:10:02,891 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 20:10:02,892 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 20:10:02,892 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 20:10:02,892 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 20:10:02,893 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 20:10:02,893 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 20:10:02,893 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 20:10:02,893 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 20:10:02,893 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 20:10:02,894 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 20:10:02,894 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 20:10:02,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 20:10:02,894 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 20:10:02,894 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 20:10:02,895 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 20:10:02,895 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 20:10:02,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 20:10:02,895 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 20:10:02,895 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 20:10:02,895 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 20:10:02,897 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 20:10:03,150 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 20:10:03,170 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 20:10:03,173 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 20:10:03,175 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 20:10:03,175 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 20:10:03,176 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/fkp2013_variant-1.i [2020-04-18 20:10:03,244 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6df7a094a/f1c02ce4c66242678560691170b3457e/FLAG0678af7f2 [2020-04-18 20:10:03,759 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 20:10:03,760 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2013_variant-1.i [2020-04-18 20:10:03,777 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6df7a094a/f1c02ce4c66242678560691170b3457e/FLAG0678af7f2 [2020-04-18 20:10:04,081 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6df7a094a/f1c02ce4c66242678560691170b3457e [2020-04-18 20:10:04,090 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 20:10:04,114 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 20:10:04,115 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 20:10:04,115 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 20:10:04,118 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 20:10:04,119 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:10:04" (1/1) ... [2020-04-18 20:10:04,122 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@276f7dc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:04, skipping insertion in model container [2020-04-18 20:10:04,123 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:10:04" (1/1) ... [2020-04-18 20:10:04,130 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 20:10:04,199 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 20:10:04,716 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 20:10:04,731 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 20:10:04,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 20:10:04,857 INFO L208 MainTranslator]: Completed translation [2020-04-18 20:10:04,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:04 WrapperNode [2020-04-18 20:10:04,858 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 20:10:04,858 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 20:10:04,859 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 20:10:04,859 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 20:10:04,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:04" (1/1) ... [2020-04-18 20:10:04,893 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:04" (1/1) ... [2020-04-18 20:10:04,913 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 20:10:04,913 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 20:10:04,914 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 20:10:04,914 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 20:10:04,922 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:04" (1/1) ... [2020-04-18 20:10:04,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:04" (1/1) ... [2020-04-18 20:10:04,925 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:04" (1/1) ... [2020-04-18 20:10:04,926 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:04" (1/1) ... [2020-04-18 20:10:04,931 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:04" (1/1) ... [2020-04-18 20:10:04,935 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:04" (1/1) ... [2020-04-18 20:10:04,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:04" (1/1) ... [2020-04-18 20:10:04,941 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 20:10:04,941 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 20:10:04,941 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 20:10:04,942 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 20:10:04,942 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:04" (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 20:10:05,005 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2020-04-18 20:10:05,006 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2020-04-18 20:10:05,006 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-04-18 20:10:05,006 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-04-18 20:10:05,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 20:10:05,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 20:10:05,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 20:10:05,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 20:10:05,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 20:10:05,009 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 20:10:05,385 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 20:10:05,386 INFO L295 CfgBuilder]: Removed 9 assume(true) statements. [2020-04-18 20:10:05,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:10:05 BoogieIcfgContainer [2020-04-18 20:10:05,389 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 20:10:05,391 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 20:10:05,391 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 20:10:05,394 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 20:10:05,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 08:10:04" (1/3) ... [2020-04-18 20:10:05,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cab39b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:10:05, skipping insertion in model container [2020-04-18 20:10:05,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:04" (2/3) ... [2020-04-18 20:10:05,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cab39b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:10:05, skipping insertion in model container [2020-04-18 20:10:05,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:10:05" (3/3) ... [2020-04-18 20:10:05,398 INFO L109 eAbstractionObserver]: Analyzing ICFG fkp2013_variant-1.i [2020-04-18 20:10:05,407 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 20:10:05,407 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 20:10:05,414 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 20:10:05,415 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 20:10:05,436 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:05,437 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:05,437 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:05,438 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:05,438 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:05,438 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:05,439 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:05,439 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:05,439 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:05,440 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:05,440 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:05,440 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:05,441 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:05,441 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:05,441 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:05,442 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:05,442 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:05,442 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:05,442 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:05,443 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:05,443 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:05,447 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:05,447 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:05,449 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:05,450 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:05,450 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:05,450 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:05,465 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:05,465 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:05,465 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:05,466 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:05,466 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:05,478 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 20:10:05,495 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 20:10:05,495 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 20:10:05,496 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 20:10:05,496 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 20:10:05,496 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 20:10:05,496 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 20:10:05,496 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 20:10:05,496 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 20:10:05,508 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 64 places, 61 transitions, 132 flow [2020-04-18 20:10:05,589 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1274 states. [2020-04-18 20:10:05,592 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states. [2020-04-18 20:10:05,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-04-18 20:10:05,601 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:10:05,602 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:10:05,602 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-18 20:10:05,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:05,609 INFO L82 PathProgramCache]: Analyzing trace with hash -305173420, now seen corresponding path program 1 times [2020-04-18 20:10:05,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:10:05,616 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1518414830] [2020-04-18 20:10:05,631 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:10:05,648 INFO L259 McrAutomatonBuilder]: Finished intersection with 30 states and 29 transitions. [2020-04-18 20:10:05,650 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-04-18 20:10:05,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-04-18 20:10:05,652 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:10:05,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:05,652 INFO L82 PathProgramCache]: Analyzing trace with hash -305173420, now seen corresponding path program 2 times [2020-04-18 20:10:05,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:10:05,656 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161473466] [2020-04-18 20:10:05,657 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:10:05,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:10:06,116 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 20:10:06,117 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161473466] [2020-04-18 20:10:06,118 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:10:06,118 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-04-18 20:10:06,119 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:10:06,122 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:10:06,129 INFO L259 McrAutomatonBuilder]: Finished intersection with 30 states and 29 transitions. [2020-04-18 20:10:06,129 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:10:06,227 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:10:06,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 20:10:06,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-04-18 20:10:06,234 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 9 states. [2020-04-18 20:10:06,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:10:06,369 INFO L93 Difference]: Finished difference Result 30 states and 29 transitions. [2020-04-18 20:10:06,370 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 29 transitions. [2020-04-18 20:10:06,370 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:10:06,371 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1518414830] [2020-04-18 20:10:06,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:10:06,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-04-18 20:10:06,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1518414830] [2020-04-18 20:10:06,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-04-18 20:10:06,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:10:06,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 20:10:06,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2020-04-18 20:10:06,380 INFO L87 Difference]: Start difference. First operand 1274 states. Second operand 9 states. [2020-04-18 20:10:06,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:10:06,563 INFO L93 Difference]: Finished difference Result 1408 states and 3563 transitions. [2020-04-18 20:10:06,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 20:10:06,565 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-04-18 20:10:06,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:10:06,589 INFO L225 Difference]: With dead ends: 1408 [2020-04-18 20:10:06,589 INFO L226 Difference]: Without dead ends: 935 [2020-04-18 20:10:06,591 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-04-18 20:10:06,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2020-04-18 20:10:06,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 863. [2020-04-18 20:10:06,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 863 states. [2020-04-18 20:10:06,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 2155 transitions. [2020-04-18 20:10:06,740 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 2155 transitions. Word has length 29 [2020-04-18 20:10:06,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:10:06,741 INFO L479 AbstractCegarLoop]: Abstraction has 863 states and 2155 transitions. [2020-04-18 20:10:06,741 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-04-18 20:10:06,742 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 2155 transitions. [2020-04-18 20:10:06,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-04-18 20:10:06,753 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:10:06,753 INFO L425 BasicCegarLoop]: trace histogram [2, 2, 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 20:10:06,754 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-18 20:10:06,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:06,760 INFO L82 PathProgramCache]: Analyzing trace with hash 447630108, now seen corresponding path program 1 times [2020-04-18 20:10:06,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:10:06,760 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [528344114] [2020-04-18 20:10:06,761 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:10:06,764 INFO L259 McrAutomatonBuilder]: Finished intersection with 36 states and 35 transitions. [2020-04-18 20:10:06,764 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2020-04-18 20:10:06,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-04-18 20:10:06,768 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:10:06,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:06,768 INFO L82 PathProgramCache]: Analyzing trace with hash 447630108, now seen corresponding path program 2 times [2020-04-18 20:10:06,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:10:06,769 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101115262] [2020-04-18 20:10:06,771 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:10:06,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 20:10:06,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 20:10:06,926 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-18 20:10:06,926 INFO L174 FreeRefinementEngine]: Strategy MCR found a feasible trace [2020-04-18 20:10:06,927 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-18 20:10:06,927 WARN L363 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-04-18 20:10:06,928 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-04-18 20:10:06,937 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,937 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,937 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,938 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,938 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,938 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,938 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,938 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,939 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,939 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,939 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,939 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,939 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,940 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,940 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,940 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,940 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,940 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,941 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,941 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,941 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,941 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,942 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,942 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,942 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,942 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,942 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,943 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,943 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,943 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,944 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,944 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,944 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,944 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,944 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,945 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,945 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,945 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,945 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,945 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,946 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,946 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,946 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,947 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,947 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,947 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,947 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,948 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,949 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,950 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,950 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,950 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,950 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,951 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,952 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,953 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,953 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,953 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,953 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,955 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,955 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,955 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,956 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,956 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:06,958 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-04-18 20:10:06,958 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 20:10:06,958 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 20:10:06,959 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 20:10:06,959 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 20:10:06,959 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 20:10:06,959 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 20:10:06,959 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 20:10:06,959 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 20:10:06,963 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 85 places, 79 transitions, 182 flow [2020-04-18 20:10:07,445 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 9044 states. [2020-04-18 20:10:07,446 INFO L276 IsEmpty]: Start isEmpty. Operand 9044 states. [2020-04-18 20:10:07,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-04-18 20:10:07,446 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:10:07,447 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:10:07,447 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:10:07,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:07,447 INFO L82 PathProgramCache]: Analyzing trace with hash 224627827, now seen corresponding path program 1 times [2020-04-18 20:10:07,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:10:07,448 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1720808339] [2020-04-18 20:10:07,449 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:10:07,449 INFO L259 McrAutomatonBuilder]: Finished intersection with 30 states and 29 transitions. [2020-04-18 20:10:07,450 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-04-18 20:10:07,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-04-18 20:10:07,450 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:10:07,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:07,451 INFO L82 PathProgramCache]: Analyzing trace with hash 224627827, now seen corresponding path program 2 times [2020-04-18 20:10:07,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:10:07,452 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670706387] [2020-04-18 20:10:07,452 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:10:07,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:10:07,659 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 20:10:07,660 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670706387] [2020-04-18 20:10:07,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:10:07,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-04-18 20:10:07,661 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:10:07,663 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:10:07,666 INFO L259 McrAutomatonBuilder]: Finished intersection with 30 states and 29 transitions. [2020-04-18 20:10:07,666 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:10:07,747 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:10:07,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 20:10:07,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-04-18 20:10:07,749 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 9 states. [2020-04-18 20:10:07,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:10:07,861 INFO L93 Difference]: Finished difference Result 30 states and 29 transitions. [2020-04-18 20:10:07,862 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 29 transitions. [2020-04-18 20:10:07,862 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:10:07,862 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1720808339] [2020-04-18 20:10:07,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:10:07,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-04-18 20:10:07,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1720808339] [2020-04-18 20:10:07,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-04-18 20:10:07,864 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:10:07,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 20:10:07,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2020-04-18 20:10:07,864 INFO L87 Difference]: Start difference. First operand 9044 states. Second operand 9 states. [2020-04-18 20:10:08,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:10:08,228 INFO L93 Difference]: Finished difference Result 11824 states and 39861 transitions. [2020-04-18 20:10:08,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 20:10:08,229 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-04-18 20:10:08,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:10:08,321 INFO L225 Difference]: With dead ends: 11824 [2020-04-18 20:10:08,322 INFO L226 Difference]: Without dead ends: 8207 [2020-04-18 20:10:08,322 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-04-18 20:10:08,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8207 states. [2020-04-18 20:10:08,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8207 to 7352. [2020-04-18 20:10:08,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7352 states. [2020-04-18 20:10:08,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7352 states to 7352 states and 24692 transitions. [2020-04-18 20:10:08,858 INFO L78 Accepts]: Start accepts. Automaton has 7352 states and 24692 transitions. Word has length 29 [2020-04-18 20:10:08,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:10:08,859 INFO L479 AbstractCegarLoop]: Abstraction has 7352 states and 24692 transitions. [2020-04-18 20:10:08,859 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-04-18 20:10:08,859 INFO L276 IsEmpty]: Start isEmpty. Operand 7352 states and 24692 transitions. [2020-04-18 20:10:08,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-04-18 20:10:08,861 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:10:08,861 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] [2020-04-18 20:10:08,861 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:10:08,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:08,862 INFO L82 PathProgramCache]: Analyzing trace with hash 1801700953, now seen corresponding path program 1 times [2020-04-18 20:10:08,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:10:08,865 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1166962760] [2020-04-18 20:10:08,868 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:10:08,871 INFO L259 McrAutomatonBuilder]: Finished intersection with 93 states and 146 transitions. [2020-04-18 20:10:08,874 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states. [2020-04-18 20:10:08,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-04-18 20:10:08,877 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:10:08,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:08,878 INFO L82 PathProgramCache]: Analyzing trace with hash 2090161063, now seen corresponding path program 2 times [2020-04-18 20:10:08,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:10:08,879 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173917069] [2020-04-18 20:10:08,880 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:10:08,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:10:09,113 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 20:10:09,113 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173917069] [2020-04-18 20:10:09,114 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:10:09,114 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 20:10:09,114 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:10:09,118 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:10:09,128 INFO L259 McrAutomatonBuilder]: Finished intersection with 91 states and 142 transitions. [2020-04-18 20:10:09,129 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:10:09,298 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 13 times. [2020-04-18 20:10:09,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-04-18 20:10:09,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-04-18 20:10:09,299 INFO L87 Difference]: Start difference. First operand 93 states. Second operand 13 states. [2020-04-18 20:10:09,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:10:09,805 INFO L93 Difference]: Finished difference Result 98 states and 150 transitions. [2020-04-18 20:10:09,805 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 150 transitions. [2020-04-18 20:10:09,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-04-18 20:10:09,806 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 20:10:09,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:09,806 INFO L82 PathProgramCache]: Analyzing trace with hash 1801700953, now seen corresponding path program 3 times [2020-04-18 20:10:09,806 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:10:09,807 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217715772] [2020-04-18 20:10:09,807 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:10:09,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:10:10,037 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 20:10:10,037 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217715772] [2020-04-18 20:10:10,037 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:10:10,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-04-18 20:10:10,038 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:10:10,041 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:10:10,047 INFO L259 McrAutomatonBuilder]: Finished intersection with 48 states and 56 transitions. [2020-04-18 20:10:10,047 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:10:10,091 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 20:10:10,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 20:10:10,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2020-04-18 20:10:10,092 INFO L87 Difference]: Start difference. First operand 98 states and 150 transitions. Second operand 9 states. [2020-04-18 20:10:10,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:10:10,339 INFO L93 Difference]: Finished difference Result 133 states and 208 transitions. [2020-04-18 20:10:10,340 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 208 transitions. [2020-04-18 20:10:10,340 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:10:10,341 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1166962760] [2020-04-18 20:10:10,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:10:10,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-04-18 20:10:10,342 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1166962760] [2020-04-18 20:10:10,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-04-18 20:10:10,343 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:10:10,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-04-18 20:10:10,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=218, Invalid=838, Unknown=0, NotChecked=0, Total=1056 [2020-04-18 20:10:10,344 INFO L87 Difference]: Start difference. First operand 7352 states and 24692 transitions. Second operand 15 states. [2020-04-18 20:10:11,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:10:11,577 INFO L93 Difference]: Finished difference Result 12326 states and 40140 transitions. [2020-04-18 20:10:11,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-04-18 20:10:11,577 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 38 [2020-04-18 20:10:11,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:10:11,656 INFO L225 Difference]: With dead ends: 12326 [2020-04-18 20:10:11,657 INFO L226 Difference]: Without dead ends: 11278 [2020-04-18 20:10:11,661 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 623 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=509, Invalid=1941, Unknown=0, NotChecked=0, Total=2450 [2020-04-18 20:10:11,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11278 states. [2020-04-18 20:10:11,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11278 to 6295. [2020-04-18 20:10:11,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6295 states. [2020-04-18 20:10:12,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6295 states to 6295 states and 21128 transitions. [2020-04-18 20:10:12,615 INFO L78 Accepts]: Start accepts. Automaton has 6295 states and 21128 transitions. Word has length 38 [2020-04-18 20:10:12,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:10:12,616 INFO L479 AbstractCegarLoop]: Abstraction has 6295 states and 21128 transitions. [2020-04-18 20:10:12,616 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-04-18 20:10:12,616 INFO L276 IsEmpty]: Start isEmpty. Operand 6295 states and 21128 transitions. [2020-04-18 20:10:12,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-04-18 20:10:12,621 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:10:12,622 INFO L425 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 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 20:10:12,622 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:10:12,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:12,623 INFO L82 PathProgramCache]: Analyzing trace with hash 758782953, now seen corresponding path program 1 times [2020-04-18 20:10:12,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:10:12,624 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [183769656] [2020-04-18 20:10:12,625 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:10:12,627 INFO L259 McrAutomatonBuilder]: Finished intersection with 43 states and 42 transitions. [2020-04-18 20:10:12,627 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-04-18 20:10:12,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-04-18 20:10:12,628 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:10:12,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:12,629 INFO L82 PathProgramCache]: Analyzing trace with hash 758782953, now seen corresponding path program 2 times [2020-04-18 20:10:12,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:10:12,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635224267] [2020-04-18 20:10:12,630 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:10:12,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 20:10:12,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 20:10:12,695 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-18 20:10:12,695 INFO L174 FreeRefinementEngine]: Strategy MCR found a feasible trace [2020-04-18 20:10:12,695 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-18 20:10:12,696 WARN L363 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-04-18 20:10:12,697 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-04-18 20:10:12,708 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,708 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,708 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,708 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,709 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,709 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,709 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,709 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,709 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,710 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,710 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,710 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,710 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,710 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,711 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,711 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,711 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,711 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,711 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,711 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,712 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,712 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,712 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,712 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,712 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,712 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,713 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,713 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,713 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,713 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,713 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,714 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,714 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,714 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,714 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,714 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,715 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,715 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,715 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,715 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,716 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,716 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,716 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,716 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,716 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,716 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,717 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,717 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,717 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,717 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,717 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,718 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,718 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,718 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,718 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,719 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,719 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,719 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,719 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,719 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,719 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,720 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,720 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,720 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,721 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,721 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,721 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,721 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,721 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,723 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,723 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,723 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,724 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,724 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,724 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,726 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,726 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,726 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,726 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,726 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,727 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,728 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,729 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,729 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,729 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,729 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,731 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,731 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,731 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,732 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,732 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,735 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,736 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,736 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,736 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,736 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:12,741 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-04-18 20:10:12,741 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 20:10:12,741 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 20:10:12,741 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 20:10:12,741 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 20:10:12,742 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 20:10:12,742 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 20:10:12,742 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 20:10:12,742 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 20:10:12,744 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 106 places, 97 transitions, 236 flow [2020-04-18 20:10:22,845 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 63434 states. [2020-04-18 20:10:22,845 INFO L276 IsEmpty]: Start isEmpty. Operand 63434 states. [2020-04-18 20:10:22,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-04-18 20:10:22,846 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:10:22,846 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:10:22,846 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:10:22,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:22,847 INFO L82 PathProgramCache]: Analyzing trace with hash -2111596188, now seen corresponding path program 1 times [2020-04-18 20:10:22,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:10:22,847 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [2131879763] [2020-04-18 20:10:22,848 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:10:22,848 INFO L259 McrAutomatonBuilder]: Finished intersection with 30 states and 29 transitions. [2020-04-18 20:10:22,849 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-04-18 20:10:22,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-04-18 20:10:22,849 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:10:22,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:22,850 INFO L82 PathProgramCache]: Analyzing trace with hash -2111596188, now seen corresponding path program 2 times [2020-04-18 20:10:22,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:10:22,850 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768924655] [2020-04-18 20:10:22,850 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:10:22,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:10:22,972 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 20:10:22,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768924655] [2020-04-18 20:10:22,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:10:22,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-04-18 20:10:22,973 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:10:22,975 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:10:22,977 INFO L259 McrAutomatonBuilder]: Finished intersection with 30 states and 29 transitions. [2020-04-18 20:10:22,977 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:10:23,031 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:10:23,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 20:10:23,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-04-18 20:10:23,032 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 9 states. [2020-04-18 20:10:23,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:10:23,115 INFO L93 Difference]: Finished difference Result 30 states and 29 transitions. [2020-04-18 20:10:23,115 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 29 transitions. [2020-04-18 20:10:23,116 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:10:23,116 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [2131879763] [2020-04-18 20:10:23,116 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:10:23,117 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-04-18 20:10:23,117 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [2131879763] [2020-04-18 20:10:23,117 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-04-18 20:10:23,117 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:10:23,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 20:10:23,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2020-04-18 20:10:23,118 INFO L87 Difference]: Start difference. First operand 63434 states. Second operand 9 states. [2020-04-18 20:10:25,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:10:25,343 INFO L93 Difference]: Finished difference Result 90784 states and 383719 transitions. [2020-04-18 20:10:25,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 20:10:25,344 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-04-18 20:10:25,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:10:25,712 INFO L225 Difference]: With dead ends: 90784 [2020-04-18 20:10:25,713 INFO L226 Difference]: Without dead ends: 64007 [2020-04-18 20:10:25,713 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-04-18 20:10:26,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64007 states. [2020-04-18 20:10:27,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64007 to 56555. [2020-04-18 20:10:27,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56555 states. [2020-04-18 20:10:30,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56555 states to 56555 states and 238905 transitions. [2020-04-18 20:10:30,102 INFO L78 Accepts]: Start accepts. Automaton has 56555 states and 238905 transitions. Word has length 29 [2020-04-18 20:10:30,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:10:30,103 INFO L479 AbstractCegarLoop]: Abstraction has 56555 states and 238905 transitions. [2020-04-18 20:10:30,103 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-04-18 20:10:30,103 INFO L276 IsEmpty]: Start isEmpty. Operand 56555 states and 238905 transitions. [2020-04-18 20:10:30,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-04-18 20:10:30,105 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:10:30,105 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] [2020-04-18 20:10:30,105 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:10:30,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:30,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1566167098, now seen corresponding path program 1 times [2020-04-18 20:10:30,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:10:30,106 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [2119852134] [2020-04-18 20:10:30,107 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:10:30,109 INFO L259 McrAutomatonBuilder]: Finished intersection with 93 states and 146 transitions. [2020-04-18 20:10:30,109 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states. [2020-04-18 20:10:30,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-04-18 20:10:30,110 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:10:30,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:30,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1974131184, now seen corresponding path program 2 times [2020-04-18 20:10:30,111 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:10:30,111 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999099216] [2020-04-18 20:10:30,111 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:10:30,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:10:30,210 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 20:10:30,211 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999099216] [2020-04-18 20:10:30,211 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:10:30,211 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 20:10:30,212 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:10:30,215 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:10:30,224 INFO L259 McrAutomatonBuilder]: Finished intersection with 91 states and 142 transitions. [2020-04-18 20:10:30,225 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:10:30,390 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 10 times. [2020-04-18 20:10:30,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-04-18 20:10:30,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-04-18 20:10:30,391 INFO L87 Difference]: Start difference. First operand 93 states. Second operand 13 states. [2020-04-18 20:10:30,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:10:30,921 INFO L93 Difference]: Finished difference Result 98 states and 150 transitions. [2020-04-18 20:10:30,921 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 150 transitions. [2020-04-18 20:10:30,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-04-18 20:10:30,922 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 20:10:30,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:30,923 INFO L82 PathProgramCache]: Analyzing trace with hash -1566167098, now seen corresponding path program 3 times [2020-04-18 20:10:30,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:10:30,923 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060312666] [2020-04-18 20:10:30,924 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:10:30,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:10:31,016 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 20:10:31,017 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060312666] [2020-04-18 20:10:31,017 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:10:31,017 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-04-18 20:10:31,017 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:10:31,020 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:10:31,025 INFO L259 McrAutomatonBuilder]: Finished intersection with 48 states and 56 transitions. [2020-04-18 20:10:31,025 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:10:31,076 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times. [2020-04-18 20:10:31,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 20:10:31,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=518, Unknown=0, NotChecked=0, Total=650 [2020-04-18 20:10:31,077 INFO L87 Difference]: Start difference. First operand 98 states and 150 transitions. Second operand 9 states. [2020-04-18 20:10:31,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:10:31,287 INFO L93 Difference]: Finished difference Result 133 states and 208 transitions. [2020-04-18 20:10:31,287 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 208 transitions. [2020-04-18 20:10:31,287 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:10:31,288 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [2119852134] [2020-04-18 20:10:31,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:10:31,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-04-18 20:10:31,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [2119852134] [2020-04-18 20:10:31,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-04-18 20:10:31,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:10:31,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-04-18 20:10:31,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=243, Invalid=1017, Unknown=0, NotChecked=0, Total=1260 [2020-04-18 20:10:31,291 INFO L87 Difference]: Start difference. First operand 56555 states and 238905 transitions. Second operand 15 states. [2020-04-18 20:10:33,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:10:33,452 INFO L93 Difference]: Finished difference Result 119465 states and 488541 transitions. [2020-04-18 20:10:33,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-04-18 20:10:33,452 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 38 [2020-04-18 20:10:33,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:10:36,742 INFO L225 Difference]: With dead ends: 119465 [2020-04-18 20:10:36,743 INFO L226 Difference]: Without dead ends: 112081 [2020-04-18 20:10:36,744 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1030 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=640, Invalid=3020, Unknown=0, NotChecked=0, Total=3660 [2020-04-18 20:10:37,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112081 states. [2020-04-18 20:10:38,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112081 to 55486. [2020-04-18 20:10:38,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55486 states. [2020-04-18 20:10:39,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55486 states to 55486 states and 233323 transitions. [2020-04-18 20:10:39,084 INFO L78 Accepts]: Start accepts. Automaton has 55486 states and 233323 transitions. Word has length 38 [2020-04-18 20:10:39,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:10:39,085 INFO L479 AbstractCegarLoop]: Abstraction has 55486 states and 233323 transitions. [2020-04-18 20:10:39,085 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-04-18 20:10:39,085 INFO L276 IsEmpty]: Start isEmpty. Operand 55486 states and 233323 transitions. [2020-04-18 20:10:39,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-04-18 20:10:39,090 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:10:39,090 INFO L425 BasicCegarLoop]: trace histogram [2, 2, 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, 1, 1] [2020-04-18 20:10:39,090 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:10:39,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:39,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1983460978, now seen corresponding path program 1 times [2020-04-18 20:10:39,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:10:39,091 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1537458618] [2020-04-18 20:10:39,093 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:10:39,095 INFO L259 McrAutomatonBuilder]: Finished intersection with 142 states and 237 transitions. [2020-04-18 20:10:39,095 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states. [2020-04-18 20:10:39,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-04-18 20:10:39,096 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:10:39,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:39,097 INFO L82 PathProgramCache]: Analyzing trace with hash 939013486, now seen corresponding path program 2 times [2020-04-18 20:10:39,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:10:39,097 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107690685] [2020-04-18 20:10:39,097 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:10:39,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:10:39,277 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:10:39,277 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107690685] [2020-04-18 20:10:39,278 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1494916710] [2020-04-18 20:10:39,278 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 20:10:39,391 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-04-18 20:10:39,391 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 20:10:39,394 INFO L264 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 11 conjunts are in the unsatisfiable core [2020-04-18 20:10:39,402 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 20:10:39,437 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 20:10:39,532 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:10:39,532 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 20:10:39,533 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2020-04-18 20:10:39,533 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:10:39,537 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:10:39,553 INFO L259 McrAutomatonBuilder]: Finished intersection with 140 states and 233 transitions. [2020-04-18 20:10:39,553 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:10:40,385 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 44 times. [2020-04-18 20:10:40,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2020-04-18 20:10:40,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=1318, Unknown=0, NotChecked=0, Total=1482 [2020-04-18 20:10:40,387 INFO L87 Difference]: Start difference. First operand 142 states. Second operand 39 states. [2020-04-18 20:10:42,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:10:42,651 INFO L93 Difference]: Finished difference Result 150 states and 246 transitions. [2020-04-18 20:10:42,651 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 246 transitions. [2020-04-18 20:10:42,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-04-18 20:10:42,652 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 20:10:42,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:42,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1983460978, now seen corresponding path program 3 times [2020-04-18 20:10:42,652 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:10:42,653 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405910159] [2020-04-18 20:10:42,653 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:10:42,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:10:42,755 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:10:42,755 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405910159] [2020-04-18 20:10:42,756 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568370429] [2020-04-18 20:10:42,756 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 20:10:42,819 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2020-04-18 20:10:42,819 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 20:10:42,820 INFO L264 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 14 conjunts are in the unsatisfiable core [2020-04-18 20:10:42,822 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 20:10:42,888 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 20:10:42,939 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 20:10:42,975 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-04-18 20:10:42,975 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:10:42,975 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2020-04-18 20:10:42,976 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:10:42,978 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:10:42,984 INFO L259 McrAutomatonBuilder]: Finished intersection with 62 states and 77 transitions. [2020-04-18 20:10:42,984 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:10:43,365 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 7 times. [2020-04-18 20:10:43,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-04-18 20:10:43,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=536, Invalid=3886, Unknown=0, NotChecked=0, Total=4422 [2020-04-18 20:10:43,368 INFO L87 Difference]: Start difference. First operand 150 states and 246 transitions. Second operand 19 states. [2020-04-18 20:10:45,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:10:45,135 INFO L93 Difference]: Finished difference Result 150 states and 246 transitions. [2020-04-18 20:10:45,136 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 246 transitions. [2020-04-18 20:10:45,136 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:10:45,137 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1537458618] [2020-04-18 20:10:45,138 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:10:45,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-04-18 20:10:45,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1537458618] [2020-04-18 20:10:45,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 51 states [2020-04-18 20:10:45,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:10:45,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2020-04-18 20:10:45,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1406, Invalid=7150, Unknown=0, NotChecked=0, Total=8556 [2020-04-18 20:10:45,142 INFO L87 Difference]: Start difference. First operand 55486 states and 233323 transitions. Second operand 51 states. [2020-04-18 20:10:46,255 WARN L192 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 7 [2020-04-18 20:10:50,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:10:50,890 INFO L93 Difference]: Finished difference Result 121357 states and 494833 transitions. [2020-04-18 20:10:50,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2020-04-18 20:10:50,891 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 45 [2020-04-18 20:10:50,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:10:51,253 INFO L225 Difference]: With dead ends: 121357 [2020-04-18 20:10:51,253 INFO L226 Difference]: Without dead ends: 113757 [2020-04-18 20:10:51,257 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 191 SyntacticMatches, 17 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4756 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=2142, Invalid=11664, Unknown=0, NotChecked=0, Total=13806 [2020-04-18 20:10:51,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113757 states. [2020-04-18 20:10:57,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113757 to 53316. [2020-04-18 20:10:57,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53316 states. [2020-04-18 20:10:57,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53316 states to 53316 states and 222901 transitions. [2020-04-18 20:10:57,855 INFO L78 Accepts]: Start accepts. Automaton has 53316 states and 222901 transitions. Word has length 45 [2020-04-18 20:10:57,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:10:57,856 INFO L479 AbstractCegarLoop]: Abstraction has 53316 states and 222901 transitions. [2020-04-18 20:10:57,856 INFO L480 AbstractCegarLoop]: Interpolant automaton has 51 states. [2020-04-18 20:10:57,856 INFO L276 IsEmpty]: Start isEmpty. Operand 53316 states and 222901 transitions. [2020-04-18 20:10:57,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-04-18 20:10:57,868 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:10:57,868 INFO L425 BasicCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1] [2020-04-18 20:10:58,274 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 20:10:58,275 INFO L427 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:10:58,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:58,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1868865648, now seen corresponding path program 1 times [2020-04-18 20:10:58,276 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:10:58,276 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [897600793] [2020-04-18 20:10:58,278 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:10:58,286 INFO L259 McrAutomatonBuilder]: Finished intersection with 478 states and 1169 transitions. [2020-04-18 20:10:58,288 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states. [2020-04-18 20:10:58,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-04-18 20:10:58,289 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:10:58,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:58,290 INFO L82 PathProgramCache]: Analyzing trace with hash -517723600, now seen corresponding path program 2 times [2020-04-18 20:10:58,290 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:10:58,290 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103567458] [2020-04-18 20:10:58,291 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:10:58,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:10:58,478 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:10:58,479 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103567458] [2020-04-18 20:10:58,479 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [270908208] [2020-04-18 20:10:58,479 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 20:10:58,569 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-04-18 20:10:58,570 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 20:10:58,571 INFO L264 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 11 conjunts are in the unsatisfiable core [2020-04-18 20:10:58,576 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 20:10:58,627 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 20:10:58,735 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:10:58,735 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 20:10:58,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2020-04-18 20:10:58,736 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:10:58,741 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:10:58,806 INFO L259 McrAutomatonBuilder]: Finished intersection with 398 states and 943 transitions. [2020-04-18 20:10:58,807 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:10:59,579 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 44 times. [2020-04-18 20:10:59,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2020-04-18 20:10:59,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=1318, Unknown=0, NotChecked=0, Total=1482 [2020-04-18 20:10:59,581 INFO L87 Difference]: Start difference. First operand 478 states. Second operand 39 states. [2020-04-18 20:11:03,358 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 22 [2020-04-18 20:11:04,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:11:04,371 INFO L93 Difference]: Finished difference Result 691 states and 1627 transitions. [2020-04-18 20:11:04,371 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 1627 transitions. [2020-04-18 20:11:04,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-04-18 20:11:04,373 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 20:11:04,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:11:04,373 INFO L82 PathProgramCache]: Analyzing trace with hash 920339162, now seen corresponding path program 3 times [2020-04-18 20:11:04,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:11:04,374 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570988781] [2020-04-18 20:11:04,374 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:11:04,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:11:04,488 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:11:04,489 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570988781] [2020-04-18 20:11:04,489 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819025581] [2020-04-18 20:11:04,489 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 20:11:04,548 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2020-04-18 20:11:04,548 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 20:11:04,550 INFO L264 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 14 conjunts are in the unsatisfiable core [2020-04-18 20:11:04,551 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 20:11:04,631 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 20:11:04,690 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 20:11:04,719 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-04-18 20:11:04,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:11:04,720 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2020-04-18 20:11:04,720 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:11:04,725 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:11:04,748 INFO L259 McrAutomatonBuilder]: Finished intersection with 195 states and 375 transitions. [2020-04-18 20:11:04,748 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:11:06,531 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 64 times. [2020-04-18 20:11:06,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2020-04-18 20:11:06,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1562, Invalid=10428, Unknown=0, NotChecked=0, Total=11990 [2020-04-18 20:11:06,535 INFO L87 Difference]: Start difference. First operand 691 states and 1627 transitions. Second operand 46 states. [2020-04-18 20:11:13,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:11:13,622 INFO L93 Difference]: Finished difference Result 732 states and 1675 transitions. [2020-04-18 20:11:13,622 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1675 transitions. [2020-04-18 20:11:13,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-04-18 20:11:13,624 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 20:11:13,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:11:13,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1868865648, now seen corresponding path program 4 times [2020-04-18 20:11:13,625 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:11:13,625 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435366985] [2020-04-18 20:11:13,625 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:11:13,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:11:13,780 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:11:13,780 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435366985] [2020-04-18 20:11:13,781 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125606796] [2020-04-18 20:11:13,781 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 20:11:13,842 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-04-18 20:11:13,843 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 20:11:13,844 INFO L264 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 15 conjunts are in the unsatisfiable core [2020-04-18 20:11:13,846 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 20:11:13,983 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 20:11:14,007 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:11:14,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 20:11:14,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2020-04-18 20:11:14,008 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:11:14,012 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:11:14,029 INFO L259 McrAutomatonBuilder]: Finished intersection with 142 states and 269 transitions. [2020-04-18 20:11:14,030 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:11:15,110 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 46 times. [2020-04-18 20:11:15,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2020-04-18 20:11:15,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4887, Invalid=26265, Unknown=0, NotChecked=0, Total=31152 [2020-04-18 20:11:15,115 INFO L87 Difference]: Start difference. First operand 732 states and 1675 transitions. Second operand 36 states. [2020-04-18 20:11:20,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:11:20,983 INFO L93 Difference]: Finished difference Result 1230 states and 2845 transitions. [2020-04-18 20:11:20,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1230 states and 2845 transitions. [2020-04-18 20:11:20,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-04-18 20:11:20,985 INFO L105 Mcr]: ---- MCR iteration 3 ---- [2020-04-18 20:11:20,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:11:20,986 INFO L82 PathProgramCache]: Analyzing trace with hash -1367934736, now seen corresponding path program 5 times [2020-04-18 20:11:20,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:11:20,986 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630523417] [2020-04-18 20:11:20,986 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:11:20,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:11:21,106 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:11:21,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630523417] [2020-04-18 20:11:21,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1823670331] [2020-04-18 20:11:21,107 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 20:11:21,174 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-04-18 20:11:21,174 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 20:11:21,175 INFO L264 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 20 conjunts are in the unsatisfiable core [2020-04-18 20:11:21,177 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 20:11:21,255 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 20:11:21,434 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 20:11:21,463 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:11:21,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 20:11:21,463 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 16] total 27 [2020-04-18 20:11:21,463 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:11:21,467 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:11:21,480 INFO L259 McrAutomatonBuilder]: Finished intersection with 114 states and 199 transitions. [2020-04-18 20:11:21,480 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:11:21,926 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 22 times. [2020-04-18 20:11:21,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-04-18 20:11:21,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9030, Invalid=51240, Unknown=0, NotChecked=0, Total=60270 [2020-04-18 20:11:21,930 INFO L87 Difference]: Start difference. First operand 1230 states and 2845 transitions. Second operand 27 states. [2020-04-18 20:11:25,391 WARN L192 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 21 [2020-04-18 20:11:27,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:11:27,847 INFO L93 Difference]: Finished difference Result 1487 states and 3361 transitions. [2020-04-18 20:11:27,847 INFO L276 IsEmpty]: Start isEmpty. Operand 1487 states and 3361 transitions. [2020-04-18 20:11:27,850 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:11:27,851 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [897600793] [2020-04-18 20:11:27,851 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:11:27,851 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-04-18 20:11:27,852 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [897600793] [2020-04-18 20:11:27,852 INFO L459 AbstractCegarLoop]: Interpolant automaton has 98 states [2020-04-18 20:11:27,852 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:11:27,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2020-04-18 20:11:27,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12607, Invalid=75899, Unknown=0, NotChecked=0, Total=88506 [2020-04-18 20:11:27,857 INFO L87 Difference]: Start difference. First operand 53316 states and 222901 transitions. Second operand 98 states. [2020-04-18 20:11:48,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:11:48,389 INFO L93 Difference]: Finished difference Result 226467 states and 904236 transitions. [2020-04-18 20:11:48,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 197 states. [2020-04-18 20:11:48,390 INFO L78 Accepts]: Start accepts. Automaton has 98 states. Word has length 49 [2020-04-18 20:11:48,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:11:49,030 INFO L225 Difference]: With dead ends: 226467 [2020-04-18 20:11:49,030 INFO L226 Difference]: Without dead ends: 218787 [2020-04-18 20:11:49,034 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 1032 GetRequests, 504 SyntacticMatches, 124 SemanticMatches, 404 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87823 ImplicationChecksByTransitivity, 26.1s TimeCoverageRelationStatistics Valid=21525, Invalid=142905, Unknown=0, NotChecked=0, Total=164430 [2020-04-18 20:11:49,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218787 states. [2020-04-18 20:11:56,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218787 to 45999. [2020-04-18 20:11:56,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45999 states. [2020-04-18 20:11:56,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45999 states to 45999 states and 192079 transitions. [2020-04-18 20:11:56,719 INFO L78 Accepts]: Start accepts. Automaton has 45999 states and 192079 transitions. Word has length 49 [2020-04-18 20:11:56,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:11:56,720 INFO L479 AbstractCegarLoop]: Abstraction has 45999 states and 192079 transitions. [2020-04-18 20:11:56,720 INFO L480 AbstractCegarLoop]: Interpolant automaton has 98 states. [2020-04-18 20:11:56,720 INFO L276 IsEmpty]: Start isEmpty. Operand 45999 states and 192079 transitions. [2020-04-18 20:11:56,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-04-18 20:11:56,727 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:11:56,727 INFO L425 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 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 20:11:57,529 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 20:11:57,529 INFO L427 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:11:57,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:11:57,530 INFO L82 PathProgramCache]: Analyzing trace with hash 1860267723, now seen corresponding path program 1 times [2020-04-18 20:11:57,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:11:57,531 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1847149386] [2020-04-18 20:11:57,533 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:11:57,534 INFO L259 McrAutomatonBuilder]: Finished intersection with 50 states and 49 transitions. [2020-04-18 20:11:57,534 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2020-04-18 20:11:57,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-04-18 20:11:57,534 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:11:57,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:11:57,535 INFO L82 PathProgramCache]: Analyzing trace with hash 1860267723, now seen corresponding path program 2 times [2020-04-18 20:11:57,535 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:11:57,535 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984851083] [2020-04-18 20:11:57,535 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:11:57,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 20:11:57,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 20:11:57,564 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-18 20:11:57,565 INFO L174 FreeRefinementEngine]: Strategy MCR found a feasible trace [2020-04-18 20:11:57,565 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-18 20:11:57,565 WARN L363 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-04-18 20:11:57,565 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-04-18 20:11:57,576 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,576 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,577 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,577 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,577 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,577 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,577 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,577 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,577 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,578 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,578 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,578 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,578 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,578 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,578 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,578 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,578 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,579 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,579 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,579 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,579 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,579 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,579 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,579 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,580 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,580 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,580 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,580 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,580 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,580 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,580 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,581 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,581 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,581 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,581 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,581 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,581 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,581 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,582 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,582 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,582 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,582 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,582 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,582 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,582 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,583 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,583 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,583 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,583 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,583 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,583 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,583 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,584 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,584 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,584 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,584 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,584 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,584 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,584 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,585 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,585 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,585 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,585 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,585 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,585 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,585 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,586 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,586 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,586 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,586 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,586 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,586 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,586 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,587 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,587 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,587 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,587 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,587 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,587 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,587 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,587 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,588 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,588 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,588 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,588 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,588 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,589 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,589 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,589 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,589 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,590 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,591 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,591 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,591 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,591 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,591 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,592 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,593 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,593 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,593 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,593 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,593 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,594 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,594 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,595 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,595 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,595 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,595 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,596 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,596 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,596 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,597 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,597 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,598 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,598 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,598 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,598 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,598 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,600 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,600 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,600 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,600 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,600 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,602 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,602 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,602 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,602 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,602 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:11:57,603 INFO L251 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-04-18 20:11:57,604 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 20:11:57,604 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 20:11:57,604 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 20:11:57,604 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 20:11:57,604 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 20:11:57,604 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 20:11:57,604 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 20:11:57,604 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 20:11:57,607 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 127 places, 115 transitions, 294 flow Received shutdown request... [2020-04-18 20:14:01,173 WARN L544 AbstractCegarLoop]: Verification canceled [2020-04-18 20:14:01,177 WARN L228 ceAbstractionStarter]: Timeout [2020-04-18 20:14:01,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 08:14:01 BasicIcfg [2020-04-18 20:14:01,178 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 20:14:01,180 INFO L168 Benchmark]: Toolchain (without parser) took 237087.80 ms. Allocated memory was 146.3 MB in the beginning and 3.0 GB in the end (delta: 2.9 GB). Free memory was 103.0 MB in the beginning and 1.9 GB in the end (delta: -1.8 GB). Peak memory consumption was 3.2 GB. Max. memory is 7.1 GB. [2020-04-18 20:14:01,180 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-04-18 20:14:01,181 INFO L168 Benchmark]: CACSL2BoogieTranslator took 743.13 ms. Allocated memory was 146.3 MB in the beginning and 205.0 MB in the end (delta: 58.7 MB). Free memory was 100.9 MB in the beginning and 161.9 MB in the end (delta: -61.0 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2020-04-18 20:14:01,182 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.91 ms. Allocated memory is still 205.0 MB. Free memory was 161.9 MB in the beginning and 159.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 20:14:01,182 INFO L168 Benchmark]: Boogie Preprocessor took 27.39 ms. Allocated memory is still 205.0 MB. Free memory was 159.9 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 20:14:01,183 INFO L168 Benchmark]: RCFGBuilder took 448.37 ms. Allocated memory is still 205.0 MB. Free memory was 158.6 MB in the beginning and 137.8 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. [2020-04-18 20:14:01,184 INFO L168 Benchmark]: TraceAbstraction took 235787.38 ms. Allocated memory was 205.0 MB in the beginning and 3.0 GB in the end (delta: 2.8 GB). Free memory was 137.1 MB in the beginning and 1.9 GB in the end (delta: -1.7 GB). Peak memory consumption was 3.2 GB. Max. memory is 7.1 GB. [2020-04-18 20:14:01,194 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 743.13 ms. Allocated memory was 146.3 MB in the beginning and 205.0 MB in the end (delta: 58.7 MB). Free memory was 100.9 MB in the beginning and 161.9 MB in the end (delta: -61.0 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 54.91 ms. Allocated memory is still 205.0 MB. Free memory was 161.9 MB in the beginning and 159.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.39 ms. Allocated memory is still 205.0 MB. Free memory was 159.9 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 448.37 ms. Allocated memory is still 205.0 MB. Free memory was 158.6 MB in the beginning and 137.8 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 235787.38 ms. Allocated memory was 205.0 MB in the beginning and 3.0 GB in the end (delta: 2.8 GB). Free memory was 137.1 MB in the beginning and 1.9 GB in the end (delta: -1.7 GB). Peak memory consumption was 3.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 679]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 679). Cancelled while BasicCegarLoop was constructing initial abstraction,while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 127 places, 115 transitions, 294 flow. Already constructed 241466 states. Currently 27031 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 58 locations, 1 error locations. Started 4 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 235.5s, OverallIterations: 10, TraceHistogramMax: 4, AutomataDifference: 37.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 134.2s, HoareTripleCheckerStatistics: 1736 SDtfs, 10720 SDslu, 33112 SDs, 0 SdLazy, 14991 SolverSat, 579 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1755 GetRequests, 951 SyntacticMatches, 141 SemanticMatches, 663 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94292 ImplicationChecksByTransitivity, 34.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63434occurred 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: 22.6s AutomataMinimizationTime, 7 MinimizatonAttempts, 303186 StatesRemovedByMinimization, 7 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 could not prove your program: Timeout Completed graceful shutdown