./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-ext/16_peterson.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_da8dda35-02f5-4b81-816e-73fe256476cb/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_da8dda35-02f5-4b81-816e-73fe256476cb/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_da8dda35-02f5-4b81-816e-73fe256476cb/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_da8dda35-02f5-4b81-816e-73fe256476cb/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/16_peterson.i -s /tmp/vcloud-vcloud-master/worker/run_dir_da8dda35-02f5-4b81-816e-73fe256476cb/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_da8dda35-02f5-4b81-816e-73fe256476cb/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fe2a87bf03514f77a2923708fa633129c30ac7f0 ....................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 05:38:53,330 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 05:38:53,332 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 05:38:53,343 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 05:38:53,344 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 05:38:53,345 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 05:38:53,346 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 05:38:53,349 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 05:38:53,351 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 05:38:53,352 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 05:38:53,353 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 05:38:53,354 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 05:38:53,355 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 05:38:53,356 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 05:38:53,357 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 05:38:53,358 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 05:38:53,359 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 05:38:53,360 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 05:38:53,362 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 05:38:53,364 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 05:38:53,366 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 05:38:53,367 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 05:38:53,368 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 05:38:53,369 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 05:38:53,372 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 05:38:53,372 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 05:38:53,372 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 05:38:53,373 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 05:38:53,373 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 05:38:53,375 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 05:38:53,375 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 05:38:53,376 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 05:38:53,376 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 05:38:53,377 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 05:38:53,378 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 05:38:53,378 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 05:38:53,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 05:38:53,379 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 05:38:53,380 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 05:38:53,380 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 05:38:53,381 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 05:38:53,382 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_da8dda35-02f5-4b81-816e-73fe256476cb/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 05:38:53,397 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 05:38:53,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 05:38:53,399 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 05:38:53,399 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 05:38:53,399 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 05:38:53,400 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 05:38:53,400 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 05:38:53,400 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 05:38:53,401 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 05:38:53,401 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 05:38:53,401 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 05:38:53,401 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 05:38:53,402 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 05:38:53,402 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 05:38:53,402 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 05:38:53,402 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 05:38:53,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 05:38:53,403 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 05:38:53,403 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 05:38:53,404 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 05:38:53,404 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 05:38:53,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 05:38:53,405 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 05:38:53,405 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 05:38:53,405 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 05:38:53,405 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 05:38:53,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 05:38:53,406 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 05:38:53,406 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_da8dda35-02f5-4b81-816e-73fe256476cb/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe2a87bf03514f77a2923708fa633129c30ac7f0 [2019-11-20 05:38:53,578 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 05:38:53,595 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 05:38:53,600 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 05:38:53,601 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 05:38:53,609 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 05:38:53,610 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_da8dda35-02f5-4b81-816e-73fe256476cb/bin/uautomizer/../../sv-benchmarks/c/pthread-ext/16_peterson.i [2019-11-20 05:38:53,675 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_da8dda35-02f5-4b81-816e-73fe256476cb/bin/uautomizer/data/592c72362/69dfa88ad17f4e89bca5198da460e266/FLAG56152584c [2019-11-20 05:38:54,084 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 05:38:54,085 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_da8dda35-02f5-4b81-816e-73fe256476cb/sv-benchmarks/c/pthread-ext/16_peterson.i [2019-11-20 05:38:54,102 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_da8dda35-02f5-4b81-816e-73fe256476cb/bin/uautomizer/data/592c72362/69dfa88ad17f4e89bca5198da460e266/FLAG56152584c [2019-11-20 05:38:54,417 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_da8dda35-02f5-4b81-816e-73fe256476cb/bin/uautomizer/data/592c72362/69dfa88ad17f4e89bca5198da460e266 [2019-11-20 05:38:54,419 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 05:38:54,421 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 05:38:54,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 05:38:54,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 05:38:54,426 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 05:38:54,427 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:38:54" (1/1) ... [2019-11-20 05:38:54,430 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c03189c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:38:54, skipping insertion in model container [2019-11-20 05:38:54,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:38:54" (1/1) ... [2019-11-20 05:38:54,438 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 05:38:54,500 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 05:38:54,954 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:38:54,968 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 05:38:55,021 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:38:55,101 INFO L192 MainTranslator]: Completed translation [2019-11-20 05:38:55,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:38:55 WrapperNode [2019-11-20 05:38:55,102 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 05:38:55,103 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 05:38:55,103 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 05:38:55,103 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 05:38:55,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:38:55" (1/1) ... [2019-11-20 05:38:55,136 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:38:55" (1/1) ... [2019-11-20 05:38:55,157 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 05:38:55,158 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 05:38:55,158 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 05:38:55,158 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 05:38:55,165 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:38:55" (1/1) ... [2019-11-20 05:38:55,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:38:55" (1/1) ... [2019-11-20 05:38:55,168 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:38:55" (1/1) ... [2019-11-20 05:38:55,168 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:38:55" (1/1) ... [2019-11-20 05:38:55,173 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:38:55" (1/1) ... [2019-11-20 05:38:55,177 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:38:55" (1/1) ... [2019-11-20 05:38:55,179 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:38:55" (1/1) ... [2019-11-20 05:38:55,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 05:38:55,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 05:38:55,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 05:38:55,182 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 05:38:55,183 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:38:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da8dda35-02f5-4b81-816e-73fe256476cb/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 05:38:55,240 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-11-20 05:38:55,241 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-11-20 05:38:55,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 05:38:55,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 05:38:55,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 05:38:55,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 05:38:55,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 05:38:55,246 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-20 05:38:55,700 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 05:38:55,700 INFO L285 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-20 05:38:55,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:38:55 BoogieIcfgContainer [2019-11-20 05:38:55,701 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 05:38:55,702 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 05:38:55,702 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 05:38:55,706 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 05:38:55,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:38:54" (1/3) ... [2019-11-20 05:38:55,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7058eb46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:38:55, skipping insertion in model container [2019-11-20 05:38:55,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:38:55" (2/3) ... [2019-11-20 05:38:55,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7058eb46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:38:55, skipping insertion in model container [2019-11-20 05:38:55,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:38:55" (3/3) ... [2019-11-20 05:38:55,714 INFO L109 eAbstractionObserver]: Analyzing ICFG 16_peterson.i [2019-11-20 05:38:55,748 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:38:55,749 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:38:55,749 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:38:55,749 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:38:55,750 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:38:55,750 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:38:55,751 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:38:55,751 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:38:55,752 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:38:55,752 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:38:55,752 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:38:55,753 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:38:55,753 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:38:55,753 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:38:55,754 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:38:55,754 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:38:55,755 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:38:55,755 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:38:55,767 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-20 05:38:55,767 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 05:38:55,775 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2019-11-20 05:38:55,787 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-11-20 05:38:55,803 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 05:38:55,804 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 05:38:55,804 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 05:38:55,804 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 05:38:55,804 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 05:38:55,804 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 05:38:55,804 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 05:38:55,804 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 05:38:55,816 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 76 places, 80 transitions [2019-11-20 05:38:55,911 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 804 states. [2019-11-20 05:38:55,913 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states. [2019-11-20 05:38:55,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-20 05:38:55,923 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:38:55,924 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:38:55,925 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:38:55,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:38:55,931 INFO L82 PathProgramCache]: Analyzing trace with hash 2122999027, now seen corresponding path program 1 times [2019-11-20 05:38:55,941 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:38:55,941 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263842028] [2019-11-20 05:38:55,942 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:38:56,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:38:56,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:38:56,103 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263842028] [2019-11-20 05:38:56,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:38:56,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 05:38:56,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943730500] [2019-11-20 05:38:56,109 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 05:38:56,110 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:38:56,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 05:38:56,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 05:38:56,128 INFO L87 Difference]: Start difference. First operand 804 states. Second operand 2 states. [2019-11-20 05:38:56,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:38:56,172 INFO L93 Difference]: Finished difference Result 804 states and 1598 transitions. [2019-11-20 05:38:56,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 05:38:56,173 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2019-11-20 05:38:56,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:38:56,197 INFO L225 Difference]: With dead ends: 804 [2019-11-20 05:38:56,197 INFO L226 Difference]: Without dead ends: 684 [2019-11-20 05:38:56,198 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 05:38:56,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2019-11-20 05:38:56,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 684. [2019-11-20 05:38:56,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 684 states. [2019-11-20 05:38:56,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 1358 transitions. [2019-11-20 05:38:56,303 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 1358 transitions. Word has length 19 [2019-11-20 05:38:56,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:38:56,304 INFO L462 AbstractCegarLoop]: Abstraction has 684 states and 1358 transitions. [2019-11-20 05:38:56,304 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 05:38:56,304 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 1358 transitions. [2019-11-20 05:38:56,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-20 05:38:56,306 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:38:56,306 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:38:56,307 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:38:56,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:38:56,308 INFO L82 PathProgramCache]: Analyzing trace with hash 2123028818, now seen corresponding path program 1 times [2019-11-20 05:38:56,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:38:56,308 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544899439] [2019-11-20 05:38:56,308 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:38:56,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:38:56,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:38:56,390 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544899439] [2019-11-20 05:38:56,390 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:38:56,390 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 05:38:56,391 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284707900] [2019-11-20 05:38:56,392 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 05:38:56,392 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:38:56,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 05:38:56,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 05:38:56,393 INFO L87 Difference]: Start difference. First operand 684 states and 1358 transitions. Second operand 3 states. [2019-11-20 05:38:56,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:38:56,457 INFO L93 Difference]: Finished difference Result 705 states and 1337 transitions. [2019-11-20 05:38:56,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 05:38:56,457 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-11-20 05:38:56,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:38:56,462 INFO L225 Difference]: With dead ends: 705 [2019-11-20 05:38:56,462 INFO L226 Difference]: Without dead ends: 525 [2019-11-20 05:38:56,463 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 05:38:56,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2019-11-20 05:38:56,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 489. [2019-11-20 05:38:56,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 489 states. [2019-11-20 05:38:56,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 929 transitions. [2019-11-20 05:38:56,506 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 929 transitions. Word has length 19 [2019-11-20 05:38:56,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:38:56,506 INFO L462 AbstractCegarLoop]: Abstraction has 489 states and 929 transitions. [2019-11-20 05:38:56,506 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 05:38:56,506 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 929 transitions. [2019-11-20 05:38:56,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 05:38:56,509 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:38:56,509 INFO L410 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] [2019-11-20 05:38:56,510 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:38:56,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:38:56,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1030578003, now seen corresponding path program 1 times [2019-11-20 05:38:56,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:38:56,511 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39820485] [2019-11-20 05:38:56,511 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:38:56,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:38:56,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:38:56,581 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39820485] [2019-11-20 05:38:56,582 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:38:56,582 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 05:38:56,582 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804000815] [2019-11-20 05:38:56,582 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 05:38:56,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:38:56,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 05:38:56,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 05:38:56,583 INFO L87 Difference]: Start difference. First operand 489 states and 929 transitions. Second operand 3 states. [2019-11-20 05:38:56,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:38:56,628 INFO L93 Difference]: Finished difference Result 453 states and 833 transitions. [2019-11-20 05:38:56,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 05:38:56,629 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-11-20 05:38:56,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:38:56,631 INFO L225 Difference]: With dead ends: 453 [2019-11-20 05:38:56,632 INFO L226 Difference]: Without dead ends: 333 [2019-11-20 05:38:56,632 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 05:38:56,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2019-11-20 05:38:56,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2019-11-20 05:38:56,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 333 states. [2019-11-20 05:38:56,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 596 transitions. [2019-11-20 05:38:56,644 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 596 transitions. Word has length 23 [2019-11-20 05:38:56,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:38:56,645 INFO L462 AbstractCegarLoop]: Abstraction has 333 states and 596 transitions. [2019-11-20 05:38:56,645 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 05:38:56,645 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 596 transitions. [2019-11-20 05:38:56,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-20 05:38:56,648 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:38:56,649 INFO L410 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] [2019-11-20 05:38:56,649 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:38:56,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:38:56,649 INFO L82 PathProgramCache]: Analyzing trace with hash 934953751, now seen corresponding path program 1 times [2019-11-20 05:38:56,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:38:56,650 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035222194] [2019-11-20 05:38:56,650 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:38:56,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:38:56,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:38:56,738 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035222194] [2019-11-20 05:38:56,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:38:56,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 05:38:56,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171813884] [2019-11-20 05:38:56,739 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 05:38:56,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:38:56,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 05:38:56,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 05:38:56,740 INFO L87 Difference]: Start difference. First operand 333 states and 596 transitions. Second operand 4 states. [2019-11-20 05:38:56,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:38:56,830 INFO L93 Difference]: Finished difference Result 351 states and 629 transitions. [2019-11-20 05:38:56,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 05:38:56,834 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2019-11-20 05:38:56,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:38:56,836 INFO L225 Difference]: With dead ends: 351 [2019-11-20 05:38:56,836 INFO L226 Difference]: Without dead ends: 279 [2019-11-20 05:38:56,837 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 05:38:56,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2019-11-20 05:38:56,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 279. [2019-11-20 05:38:56,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2019-11-20 05:38:56,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 458 transitions. [2019-11-20 05:38:56,849 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 458 transitions. Word has length 28 [2019-11-20 05:38:56,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:38:56,850 INFO L462 AbstractCegarLoop]: Abstraction has 279 states and 458 transitions. [2019-11-20 05:38:56,850 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 05:38:56,850 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 458 transitions. [2019-11-20 05:38:56,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-20 05:38:56,857 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:38:56,858 INFO L410 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] [2019-11-20 05:38:56,858 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:38:56,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:38:56,859 INFO L82 PathProgramCache]: Analyzing trace with hash 49702887, now seen corresponding path program 2 times [2019-11-20 05:38:56,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:38:56,859 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679411405] [2019-11-20 05:38:56,860 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:38:56,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:38:56,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:38:56,963 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679411405] [2019-11-20 05:38:56,963 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:38:56,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 05:38:56,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834757136] [2019-11-20 05:38:56,964 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 05:38:56,964 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:38:56,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 05:38:56,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 05:38:56,965 INFO L87 Difference]: Start difference. First operand 279 states and 458 transitions. Second operand 4 states. [2019-11-20 05:38:57,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:38:57,000 INFO L93 Difference]: Finished difference Result 120 states and 206 transitions. [2019-11-20 05:38:57,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 05:38:57,001 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2019-11-20 05:38:57,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:38:57,001 INFO L225 Difference]: With dead ends: 120 [2019-11-20 05:38:57,002 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 05:38:57,002 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 05:38:57,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 05:38:57,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 05:38:57,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 05:38:57,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 05:38:57,003 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2019-11-20 05:38:57,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:38:57,003 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 05:38:57,003 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 05:38:57,003 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 05:38:57,004 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 05:38:57,007 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-20 05:38:57,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 05:38:57 BasicIcfg [2019-11-20 05:38:57,009 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 05:38:57,009 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 05:38:57,009 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 05:38:57,010 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 05:38:57,010 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:38:55" (3/4) ... [2019-11-20 05:38:57,017 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 05:38:57,027 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2019-11-20 05:38:57,042 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-11-20 05:38:57,042 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 05:38:57,042 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 05:38:57,110 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_da8dda35-02f5-4b81-816e-73fe256476cb/bin/uautomizer/witness.graphml [2019-11-20 05:38:57,111 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 05:38:57,113 INFO L168 Benchmark]: Toolchain (without parser) took 2691.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 939.4 MB in the beginning and 1.0 GB in the end (delta: -61.6 MB). Peak memory consumption was 98.3 MB. Max. memory is 11.5 GB. [2019-11-20 05:38:57,113 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:38:57,114 INFO L168 Benchmark]: CACSL2BoogieTranslator took 679.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -195.3 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-11-20 05:38:57,114 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-20 05:38:57,114 INFO L168 Benchmark]: Boogie Preprocessor took 23.72 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:38:57,115 INFO L168 Benchmark]: RCFGBuilder took 519.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. [2019-11-20 05:38:57,120 INFO L168 Benchmark]: TraceAbstraction took 1306.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 97.6 MB). Peak memory consumption was 97.6 MB. Max. memory is 11.5 GB. [2019-11-20 05:38:57,124 INFO L168 Benchmark]: Witness Printer took 101.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-20 05:38:57,127 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 679.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -195.3 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 55.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.72 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 519.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1306.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 97.6 MB). Peak memory consumption was 97.6 MB. Max. memory is 11.5 GB. * Witness Printer took 101.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 681]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 681]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 690]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 681]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 681]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 82 locations, 5 error locations. Result: SAFE, OverallTime: 1.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 378 SDtfs, 157 SDslu, 210 SDs, 0 SdLazy, 70 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=804occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 36 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 3804 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...