./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe036_pso.opt.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_3ff87642-8ae9-405a-bbe2-53da9a8cf7da/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3ff87642-8ae9-405a-bbe2-53da9a8cf7da/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3ff87642-8ae9-405a-bbe2-53da9a8cf7da/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3ff87642-8ae9-405a-bbe2-53da9a8cf7da/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe036_pso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_3ff87642-8ae9-405a-bbe2-53da9a8cf7da/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3ff87642-8ae9-405a-bbe2-53da9a8cf7da/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 6adb7a257cb648ebc36e7e3fee95502661bbf605 ................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-19 23:01:10,631 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 23:01:10,632 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 23:01:10,648 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 23:01:10,648 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 23:01:10,650 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 23:01:10,652 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 23:01:10,661 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 23:01:10,666 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 23:01:10,670 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 23:01:10,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 23:01:10,673 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 23:01:10,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 23:01:10,675 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 23:01:10,675 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 23:01:10,677 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 23:01:10,677 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 23:01:10,678 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 23:01:10,680 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 23:01:10,682 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 23:01:10,683 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 23:01:10,685 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 23:01:10,686 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 23:01:10,686 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 23:01:10,689 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 23:01:10,689 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 23:01:10,689 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 23:01:10,690 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 23:01:10,691 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 23:01:10,692 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 23:01:10,692 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 23:01:10,693 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 23:01:10,693 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 23:01:10,694 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 23:01:10,695 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 23:01:10,695 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 23:01:10,696 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 23:01:10,696 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 23:01:10,696 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 23:01:10,697 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 23:01:10,697 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 23:01:10,698 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3ff87642-8ae9-405a-bbe2-53da9a8cf7da/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 23:01:10,740 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 23:01:10,741 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 23:01:10,742 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 23:01:10,742 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 23:01:10,742 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 23:01:10,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 23:01:10,743 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 23:01:10,743 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 23:01:10,744 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 23:01:10,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 23:01:10,744 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 23:01:10,744 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 23:01:10,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 23:01:10,745 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 23:01:10,745 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 23:01:10,745 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 23:01:10,746 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 23:01:10,746 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 23:01:10,746 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 23:01:10,746 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 23:01:10,747 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 23:01:10,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 23:01:10,747 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 23:01:10,747 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 23:01:10,748 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 23:01:10,748 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 23:01:10,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 23:01:10,748 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 23:01:10,749 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_3ff87642-8ae9-405a-bbe2-53da9a8cf7da/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 -> 6adb7a257cb648ebc36e7e3fee95502661bbf605 [2019-11-19 23:01:10,944 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 23:01:10,962 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 23:01:10,965 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 23:01:10,967 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 23:01:10,967 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 23:01:10,968 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3ff87642-8ae9-405a-bbe2-53da9a8cf7da/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe036_pso.opt.i [2019-11-19 23:01:11,037 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3ff87642-8ae9-405a-bbe2-53da9a8cf7da/bin/uautomizer/data/e3c4de683/f7d681b7c08e4c189606d5dbd20919b3/FLAGa6d7d440d [2019-11-19 23:01:11,549 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 23:01:11,554 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3ff87642-8ae9-405a-bbe2-53da9a8cf7da/sv-benchmarks/c/pthread-wmm/safe036_pso.opt.i [2019-11-19 23:01:11,581 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3ff87642-8ae9-405a-bbe2-53da9a8cf7da/bin/uautomizer/data/e3c4de683/f7d681b7c08e4c189606d5dbd20919b3/FLAGa6d7d440d [2019-11-19 23:01:11,833 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3ff87642-8ae9-405a-bbe2-53da9a8cf7da/bin/uautomizer/data/e3c4de683/f7d681b7c08e4c189606d5dbd20919b3 [2019-11-19 23:01:11,835 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 23:01:11,836 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 23:01:11,837 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 23:01:11,837 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 23:01:11,841 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 23:01:11,842 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:01:11" (1/1) ... [2019-11-19 23:01:11,844 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b3e04a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:01:11, skipping insertion in model container [2019-11-19 23:01:11,844 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:01:11" (1/1) ... [2019-11-19 23:01:11,851 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 23:01:11,894 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 23:01:12,314 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:01:12,327 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 23:01:12,371 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:01:12,454 INFO L192 MainTranslator]: Completed translation [2019-11-19 23:01:12,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:01:12 WrapperNode [2019-11-19 23:01:12,455 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 23:01:12,456 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 23:01:12,456 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 23:01:12,456 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 23:01:12,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:01:12" (1/1) ... [2019-11-19 23:01:12,481 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:01:12" (1/1) ... [2019-11-19 23:01:12,504 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 23:01:12,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 23:01:12,505 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 23:01:12,505 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 23:01:12,515 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:01:12" (1/1) ... [2019-11-19 23:01:12,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:01:12" (1/1) ... [2019-11-19 23:01:12,518 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:01:12" (1/1) ... [2019-11-19 23:01:12,519 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:01:12" (1/1) ... [2019-11-19 23:01:12,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:01:12" (1/1) ... [2019-11-19 23:01:12,527 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:01:12" (1/1) ... [2019-11-19 23:01:12,529 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:01:12" (1/1) ... [2019-11-19 23:01:12,532 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 23:01:12,533 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 23:01:12,533 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 23:01:12,534 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 23:01:12,534 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:01:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3ff87642-8ae9-405a-bbe2-53da9a8cf7da/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 [2019-11-19 23:01:12,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 23:01:12,608 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-19 23:01:12,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 23:01:12,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 23:01:12,608 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-19 23:01:12,609 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-19 23:01:12,609 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-19 23:01:12,609 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-19 23:01:12,609 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-19 23:01:12,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 23:01:12,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 23:01:12,611 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-19 23:01:13,048 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 23:01:13,049 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-19 23:01:13,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:01:13 BoogieIcfgContainer [2019-11-19 23:01:13,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 23:01:13,051 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 23:01:13,051 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 23:01:13,055 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 23:01:13,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 11:01:11" (1/3) ... [2019-11-19 23:01:13,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d48826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:01:13, skipping insertion in model container [2019-11-19 23:01:13,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:01:12" (2/3) ... [2019-11-19 23:01:13,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d48826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:01:13, skipping insertion in model container [2019-11-19 23:01:13,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:01:13" (3/3) ... [2019-11-19 23:01:13,059 INFO L109 eAbstractionObserver]: Analyzing ICFG safe036_pso.opt.i [2019-11-19 23:01:13,122 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:01:13,122 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:01:13,123 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:01:13,123 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:01:13,124 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:01:13,124 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:01:13,125 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:01:13,126 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:01:13,126 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:01:13,126 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:01:13,126 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:01:13,127 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:01:13,127 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:01:13,128 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:01:13,128 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:01:13,128 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:01:13,129 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:01:13,129 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:01:13,130 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:01:13,131 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:01:13,131 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:01:13,131 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:01:13,132 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:01:13,132 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:01:13,133 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:01:13,133 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:01:13,133 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:01:13,134 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:01:13,134 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:01:13,134 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:01:13,136 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:01:13,136 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:01:13,136 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:01:13,136 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:01:13,137 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:01:13,137 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:01:13,168 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-19 23:01:13,169 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 23:01:13,177 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 23:01:13,192 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 23:01:13,215 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 23:01:13,216 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 23:01:13,217 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 23:01:13,217 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 23:01:13,217 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 23:01:13,217 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 23:01:13,218 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 23:01:13,218 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 23:01:13,234 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 71 places, 57 transitions [2019-11-19 23:01:13,493 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2367 states. [2019-11-19 23:01:13,496 INFO L276 IsEmpty]: Start isEmpty. Operand 2367 states. [2019-11-19 23:01:13,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-19 23:01:13,532 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:01:13,533 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] [2019-11-19 23:01:13,533 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:01:13,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:01:13,539 INFO L82 PathProgramCache]: Analyzing trace with hash 740546065, now seen corresponding path program 1 times [2019-11-19 23:01:13,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:01:13,546 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107315058] [2019-11-19 23:01:13,546 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:01:13,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:01:13,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:01:13,872 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107315058] [2019-11-19 23:01:13,873 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:01:13,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-19 23:01:13,874 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868136108] [2019-11-19 23:01:13,879 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 23:01:13,879 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:01:13,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 23:01:13,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-19 23:01:13,897 INFO L87 Difference]: Start difference. First operand 2367 states. Second operand 4 states. [2019-11-19 23:01:14,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:01:14,038 INFO L93 Difference]: Finished difference Result 2376 states and 5561 transitions. [2019-11-19 23:01:14,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 23:01:14,040 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2019-11-19 23:01:14,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:01:14,086 INFO L225 Difference]: With dead ends: 2376 [2019-11-19 23:01:14,087 INFO L226 Difference]: Without dead ends: 1152 [2019-11-19 23:01:14,088 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-19 23:01:14,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2019-11-19 23:01:14,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 1152. [2019-11-19 23:01:14,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1152 states. [2019-11-19 23:01:14,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 2672 transitions. [2019-11-19 23:01:14,271 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 2672 transitions. Word has length 26 [2019-11-19 23:01:14,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:01:14,273 INFO L462 AbstractCegarLoop]: Abstraction has 1152 states and 2672 transitions. [2019-11-19 23:01:14,274 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 23:01:14,274 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 2672 transitions. [2019-11-19 23:01:14,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-19 23:01:14,279 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:01:14,280 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] [2019-11-19 23:01:14,281 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:01:14,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:01:14,281 INFO L82 PathProgramCache]: Analyzing trace with hash -691633687, now seen corresponding path program 1 times [2019-11-19 23:01:14,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:01:14,282 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296642112] [2019-11-19 23:01:14,282 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:01:14,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:01:14,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:01:14,465 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296642112] [2019-11-19 23:01:14,465 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:01:14,465 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-19 23:01:14,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962733019] [2019-11-19 23:01:14,467 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-19 23:01:14,467 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:01:14,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 23:01:14,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-19 23:01:14,468 INFO L87 Difference]: Start difference. First operand 1152 states and 2672 transitions. Second operand 5 states. [2019-11-19 23:01:14,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:01:14,602 INFO L93 Difference]: Finished difference Result 909 states and 1916 transitions. [2019-11-19 23:01:14,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-19 23:01:14,603 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-11-19 23:01:14,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:01:14,609 INFO L225 Difference]: With dead ends: 909 [2019-11-19 23:01:14,610 INFO L226 Difference]: Without dead ends: 774 [2019-11-19 23:01:14,611 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-19 23:01:14,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2019-11-19 23:01:14,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 774. [2019-11-19 23:01:14,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 774 states. [2019-11-19 23:01:14,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 774 states and 1664 transitions. [2019-11-19 23:01:14,644 INFO L78 Accepts]: Start accepts. Automaton has 774 states and 1664 transitions. Word has length 27 [2019-11-19 23:01:14,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:01:14,644 INFO L462 AbstractCegarLoop]: Abstraction has 774 states and 1664 transitions. [2019-11-19 23:01:14,644 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-19 23:01:14,645 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 1664 transitions. [2019-11-19 23:01:14,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-19 23:01:14,647 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:01:14,647 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] [2019-11-19 23:01:14,648 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:01:14,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:01:14,648 INFO L82 PathProgramCache]: Analyzing trace with hash -1578420579, now seen corresponding path program 1 times [2019-11-19 23:01:14,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:01:14,649 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075158767] [2019-11-19 23:01:14,649 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:01:14,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:01:14,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:01:14,839 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075158767] [2019-11-19 23:01:14,840 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:01:14,840 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-19 23:01:14,840 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423035388] [2019-11-19 23:01:14,840 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-19 23:01:14,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:01:14,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-19 23:01:14,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-19 23:01:14,842 INFO L87 Difference]: Start difference. First operand 774 states and 1664 transitions. Second operand 7 states. [2019-11-19 23:01:15,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:01:15,069 INFO L93 Difference]: Finished difference Result 1260 states and 2717 transitions. [2019-11-19 23:01:15,069 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-19 23:01:15,069 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2019-11-19 23:01:15,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:01:15,076 INFO L225 Difference]: With dead ends: 1260 [2019-11-19 23:01:15,076 INFO L226 Difference]: Without dead ends: 747 [2019-11-19 23:01:15,077 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-11-19 23:01:15,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2019-11-19 23:01:15,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 747. [2019-11-19 23:01:15,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 747 states. [2019-11-19 23:01:15,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 1610 transitions. [2019-11-19 23:01:15,108 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 1610 transitions. Word has length 28 [2019-11-19 23:01:15,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:01:15,109 INFO L462 AbstractCegarLoop]: Abstraction has 747 states and 1610 transitions. [2019-11-19 23:01:15,109 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-19 23:01:15,109 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 1610 transitions. [2019-11-19 23:01:15,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-19 23:01:15,112 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:01:15,112 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] [2019-11-19 23:01:15,112 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:01:15,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:01:15,113 INFO L82 PathProgramCache]: Analyzing trace with hash -1924915963, now seen corresponding path program 2 times [2019-11-19 23:01:15,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:01:15,113 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382178974] [2019-11-19 23:01:15,114 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:01:15,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:01:15,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:01:15,307 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382178974] [2019-11-19 23:01:15,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:01:15,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-19 23:01:15,307 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480694572] [2019-11-19 23:01:15,308 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-19 23:01:15,308 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:01:15,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-19 23:01:15,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-19 23:01:15,309 INFO L87 Difference]: Start difference. First operand 747 states and 1610 transitions. Second operand 7 states. [2019-11-19 23:01:15,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:01:15,481 INFO L93 Difference]: Finished difference Result 585 states and 1232 transitions. [2019-11-19 23:01:15,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-19 23:01:15,482 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2019-11-19 23:01:15,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:01:15,482 INFO L225 Difference]: With dead ends: 585 [2019-11-19 23:01:15,482 INFO L226 Difference]: Without dead ends: 0 [2019-11-19 23:01:15,483 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-11-19 23:01:15,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-19 23:01:15,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-19 23:01:15,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-19 23:01:15,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-19 23:01:15,484 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2019-11-19 23:01:15,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:01:15,484 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 23:01:15,484 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-19 23:01:15,485 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-19 23:01:15,485 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-19 23:01:15,493 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-19 23:01:15,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 11:01:15 BasicIcfg [2019-11-19 23:01:15,498 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 23:01:15,498 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 23:01:15,499 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 23:01:15,499 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 23:01:15,500 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:01:13" (3/4) ... [2019-11-19 23:01:15,504 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-19 23:01:15,513 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-19 23:01:15,513 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-19 23:01:15,529 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-11-19 23:01:15,537 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-19 23:01:15,538 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-19 23:01:15,598 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3ff87642-8ae9-405a-bbe2-53da9a8cf7da/bin/uautomizer/witness.graphml [2019-11-19 23:01:15,599 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 23:01:15,601 INFO L168 Benchmark]: Toolchain (without parser) took 3763.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 944.7 MB in the beginning and 881.6 MB in the end (delta: 63.0 MB). Peak memory consumption was 200.4 MB. Max. memory is 11.5 GB. [2019-11-19 23:01:15,602 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:01:15,602 INFO L168 Benchmark]: CACSL2BoogieTranslator took 618.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -156.6 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-11-19 23:01:15,603 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.19 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-11-19 23:01:15,603 INFO L168 Benchmark]: Boogie Preprocessor took 27.78 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. [2019-11-19 23:01:15,604 INFO L168 Benchmark]: RCFGBuilder took 517.21 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: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. [2019-11-19 23:01:15,604 INFO L168 Benchmark]: TraceAbstraction took 2446.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 881.6 MB in the end (delta: 189.7 MB). Peak memory consumption was 189.7 MB. Max. memory is 11.5 GB. [2019-11-19 23:01:15,605 INFO L168 Benchmark]: Witness Printer took 100.53 ms. Allocated memory is still 1.2 GB. Free memory is still 881.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:01:15,612 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 618.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -156.6 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.19 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.78 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 517.21 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: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2446.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 881.6 MB in the end (delta: 189.7 MB). Peak memory consumption was 189.7 MB. Max. memory is 11.5 GB. * Witness Printer took 100.53 ms. Allocated memory is still 1.2 GB. Free memory is still 881.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 67 locations, 1 error locations. Result: SAFE, OverallTime: 2.2s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 273 SDtfs, 296 SDslu, 674 SDs, 0 SdLazy, 100 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2367occurred 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: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 109 NumberOfCodeBlocks, 109 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 105 ConstructedInterpolants, 0 QuantifiedInterpolants, 7329 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...