./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe011_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e6facca7-71de-4a98-9a06-d16bb4bcd8f6/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e6facca7-71de-4a98-9a06-d16bb4bcd8f6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e6facca7-71de-4a98-9a06-d16bb4bcd8f6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e6facca7-71de-4a98-9a06-d16bb4bcd8f6/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe011_tso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_e6facca7-71de-4a98-9a06-d16bb4bcd8f6/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e6facca7-71de-4a98-9a06-d16bb4bcd8f6/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 e6ac324937dcb830ded2162c28c92a3a84b747b3 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 18:19:21,629 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:19:21,630 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:19:21,638 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:19:21,638 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:19:21,639 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:19:21,640 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:19:21,642 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:19:21,644 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:19:21,645 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:19:21,646 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:19:21,647 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:19:21,647 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:19:21,648 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:19:21,649 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:19:21,650 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:19:21,651 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:19:21,651 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:19:21,653 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:19:21,655 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:19:21,656 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:19:21,657 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:19:21,658 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:19:21,659 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:19:21,661 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:19:21,661 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:19:21,661 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:19:21,662 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:19:21,662 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:19:21,663 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:19:21,663 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:19:21,664 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:19:21,664 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:19:21,665 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:19:21,666 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:19:21,666 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:19:21,667 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:19:21,667 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:19:21,667 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:19:21,668 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:19:21,668 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:19:21,669 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e6facca7-71de-4a98-9a06-d16bb4bcd8f6/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 18:19:21,682 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:19:21,682 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:19:21,683 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:19:21,683 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:19:21,683 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:19:21,684 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:19:21,684 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:19:21,684 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:19:21,684 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:19:21,685 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:19:21,685 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:19:21,685 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:19:21,685 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:19:21,685 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:19:21,685 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:19:21,686 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:19:21,686 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:19:21,686 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:19:21,686 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:19:21,686 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:19:21,687 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:19:21,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:19:21,687 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:19:21,687 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:19:21,687 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:19:21,688 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:19:21,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 18:19:21,688 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:19:21,688 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:19:21,688 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_e6facca7-71de-4a98-9a06-d16bb4bcd8f6/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 -> e6ac324937dcb830ded2162c28c92a3a84b747b3 [2019-12-07 18:19:21,794 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:19:21,804 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:19:21,807 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:19:21,808 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:19:21,809 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:19:21,809 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e6facca7-71de-4a98-9a06-d16bb4bcd8f6/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe011_tso.opt.i [2019-12-07 18:19:21,854 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e6facca7-71de-4a98-9a06-d16bb4bcd8f6/bin/uautomizer/data/d6a85b800/497a6e8d7af745f9b73602fefdbeea42/FLAG98f265eb7 [2019-12-07 18:19:22,227 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:19:22,228 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e6facca7-71de-4a98-9a06-d16bb4bcd8f6/sv-benchmarks/c/pthread-wmm/safe011_tso.opt.i [2019-12-07 18:19:22,239 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e6facca7-71de-4a98-9a06-d16bb4bcd8f6/bin/uautomizer/data/d6a85b800/497a6e8d7af745f9b73602fefdbeea42/FLAG98f265eb7 [2019-12-07 18:19:22,248 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e6facca7-71de-4a98-9a06-d16bb4bcd8f6/bin/uautomizer/data/d6a85b800/497a6e8d7af745f9b73602fefdbeea42 [2019-12-07 18:19:22,250 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:19:22,251 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:19:22,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:19:22,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:19:22,254 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:19:22,254 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:19:22" (1/1) ... [2019-12-07 18:19:22,256 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18f04252 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:19:22, skipping insertion in model container [2019-12-07 18:19:22,256 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:19:22" (1/1) ... [2019-12-07 18:19:22,261 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:19:22,286 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:19:22,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:19:22,544 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:19:22,583 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:19:22,646 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:19:22,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:19:22 WrapperNode [2019-12-07 18:19:22,646 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:19:22,647 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:19:22,647 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:19:22,647 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:19:22,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:19:22" (1/1) ... [2019-12-07 18:19:22,669 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:19:22" (1/1) ... [2019-12-07 18:19:22,686 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:19:22,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:19:22,686 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:19:22,686 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:19:22,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:19:22" (1/1) ... [2019-12-07 18:19:22,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:19:22" (1/1) ... [2019-12-07 18:19:22,696 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:19:22" (1/1) ... [2019-12-07 18:19:22,696 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:19:22" (1/1) ... [2019-12-07 18:19:22,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:19:22" (1/1) ... [2019-12-07 18:19:22,702 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:19:22" (1/1) ... [2019-12-07 18:19:22,703 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:19:22" (1/1) ... [2019-12-07 18:19:22,705 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:19:22,706 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:19:22,706 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:19:22,706 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:19:22,706 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:19:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e6facca7-71de-4a98-9a06-d16bb4bcd8f6/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 [2019-12-07 18:19:22,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 18:19:22,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-07 18:19:22,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:19:22,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 18:19:22,747 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-07 18:19:22,747 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-07 18:19:22,747 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-07 18:19:22,747 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-07 18:19:22,747 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-07 18:19:22,747 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-07 18:19:22,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-07 18:19:22,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:19:22,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:19:22,749 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-07 18:19:22,918 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:19:22,918 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 18:19:22,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:19:22 BoogieIcfgContainer [2019-12-07 18:19:22,919 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:19:22,919 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:19:22,919 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:19:22,921 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:19:22,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:19:22" (1/3) ... [2019-12-07 18:19:22,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6780c8b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:19:22, skipping insertion in model container [2019-12-07 18:19:22,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:19:22" (2/3) ... [2019-12-07 18:19:22,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6780c8b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:19:22, skipping insertion in model container [2019-12-07 18:19:22,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:19:22" (3/3) ... [2019-12-07 18:19:22,923 INFO L109 eAbstractionObserver]: Analyzing ICFG safe011_tso.opt.i [2019-12-07 18:19:22,929 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-07 18:19:22,929 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:19:22,934 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 18:19:22,934 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-07 18:19:22,951 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 18:19:22,952 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 18:19:22,952 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 18:19:22,952 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 18:19:22,952 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 18:19:22,952 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 18:19:22,952 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 18:19:22,952 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 18:19:22,953 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 18:19:22,953 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 18:19:22,953 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 18:19:22,953 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 18:19:22,953 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 18:19:22,953 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 18:19:22,953 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 18:19:22,953 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 18:19:22,954 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 18:19:22,954 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 18:19:22,969 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-07 18:19:22,982 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:19:22,982 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:19:22,982 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:19:22,982 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:19:22,982 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:19:22,982 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:19:22,982 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:19:22,982 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:19:22,991 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-12-07 18:19:22,992 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-07 18:19:23,023 INFO L134 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-07 18:19:23,023 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-07 18:19:23,028 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs. 9/57 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-07 18:19:23,030 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-07 18:19:23,043 INFO L134 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-07 18:19:23,043 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-07 18:19:23,044 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs. 9/57 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-07 18:19:23,045 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-07 18:19:23,046 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-07 18:19:23,779 INFO L206 etLargeBlockEncoding]: Checked pairs total: 507 [2019-12-07 18:19:23,779 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-07 18:19:23,781 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-07 18:19:23,789 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-07 18:19:23,791 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-07 18:19:23,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 18:19:23,795 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:19:23,796 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:19:23,796 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:19:23,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:19:23,800 INFO L82 PathProgramCache]: Analyzing trace with hash 1331014227, now seen corresponding path program 1 times [2019-12-07 18:19:23,805 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:19:23,806 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550253356] [2019-12-07 18:19:23,806 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:19:23,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:19:23,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:19:23,969 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550253356] [2019-12-07 18:19:23,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:19:23,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:19:23,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011596170] [2019-12-07 18:19:23,973 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:19:23,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:19:23,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:19:23,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:19:23,984 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 4 states. [2019-12-07 18:19:24,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:19:24,027 INFO L93 Difference]: Finished difference Result 58 states and 113 transitions. [2019-12-07 18:19:24,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:19:24,028 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-12-07 18:19:24,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:19:24,036 INFO L225 Difference]: With dead ends: 58 [2019-12-07 18:19:24,036 INFO L226 Difference]: Without dead ends: 36 [2019-12-07 18:19:24,037 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:19:24,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-07 18:19:24,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-07 18:19:24,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-07 18:19:24,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 68 transitions. [2019-12-07 18:19:24,061 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 68 transitions. Word has length 8 [2019-12-07 18:19:24,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:19:24,061 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 68 transitions. [2019-12-07 18:19:24,061 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:19:24,061 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 68 transitions. [2019-12-07 18:19:24,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 18:19:24,062 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:19:24,062 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:19:24,062 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:19:24,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:19:24,063 INFO L82 PathProgramCache]: Analyzing trace with hash 660414012, now seen corresponding path program 1 times [2019-12-07 18:19:24,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:19:24,063 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532698569] [2019-12-07 18:19:24,063 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:19:24,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:19:24,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:19:24,128 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532698569] [2019-12-07 18:19:24,129 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:19:24,129 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:19:24,129 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353486705] [2019-12-07 18:19:24,130 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 18:19:24,131 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:19:24,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:19:24,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:19:24,131 INFO L87 Difference]: Start difference. First operand 36 states and 68 transitions. Second operand 5 states. [2019-12-07 18:19:24,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:19:24,170 INFO L93 Difference]: Finished difference Result 37 states and 62 transitions. [2019-12-07 18:19:24,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 18:19:24,171 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-12-07 18:19:24,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:19:24,171 INFO L225 Difference]: With dead ends: 37 [2019-12-07 18:19:24,172 INFO L226 Difference]: Without dead ends: 30 [2019-12-07 18:19:24,172 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-07 18:19:24,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-12-07 18:19:24,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-12-07 18:19:24,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-12-07 18:19:24,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 50 transitions. [2019-12-07 18:19:24,176 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 50 transitions. Word has length 9 [2019-12-07 18:19:24,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:19:24,176 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 50 transitions. [2019-12-07 18:19:24,176 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 18:19:24,176 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 50 transitions. [2019-12-07 18:19:24,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 18:19:24,177 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:19:24,177 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:19:24,177 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:19:24,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:19:24,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1003717118, now seen corresponding path program 1 times [2019-12-07 18:19:24,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:19:24,178 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772310465] [2019-12-07 18:19:24,178 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:19:24,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:19:24,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:19:24,228 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772310465] [2019-12-07 18:19:24,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:19:24,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 18:19:24,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104423318] [2019-12-07 18:19:24,229 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:19:24,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:19:24,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:19:24,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:19:24,229 INFO L87 Difference]: Start difference. First operand 30 states and 50 transitions. Second operand 3 states. [2019-12-07 18:19:24,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:19:24,233 INFO L93 Difference]: Finished difference Result 29 states and 48 transitions. [2019-12-07 18:19:24,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:19:24,233 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-07 18:19:24,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:19:24,234 INFO L225 Difference]: With dead ends: 29 [2019-12-07 18:19:24,234 INFO L226 Difference]: Without dead ends: 29 [2019-12-07 18:19:24,234 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:19:24,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-12-07 18:19:24,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-12-07 18:19:24,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-12-07 18:19:24,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 48 transitions. [2019-12-07 18:19:24,237 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 48 transitions. Word has length 10 [2019-12-07 18:19:24,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:19:24,237 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 48 transitions. [2019-12-07 18:19:24,237 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:19:24,237 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 48 transitions. [2019-12-07 18:19:24,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 18:19:24,238 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:19:24,238 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:19:24,238 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:19:24,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:19:24,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1001953683, now seen corresponding path program 1 times [2019-12-07 18:19:24,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:19:24,238 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118788974] [2019-12-07 18:19:24,238 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:19:24,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:19:24,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:19:24,290 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118788974] [2019-12-07 18:19:24,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:19:24,290 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 18:19:24,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781984833] [2019-12-07 18:19:24,290 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 18:19:24,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:19:24,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 18:19:24,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:19:24,291 INFO L87 Difference]: Start difference. First operand 29 states and 48 transitions. Second operand 6 states. [2019-12-07 18:19:24,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:19:24,335 INFO L93 Difference]: Finished difference Result 28 states and 44 transitions. [2019-12-07 18:19:24,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 18:19:24,335 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-07 18:19:24,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:19:24,336 INFO L225 Difference]: With dead ends: 28 [2019-12-07 18:19:24,336 INFO L226 Difference]: Without dead ends: 24 [2019-12-07 18:19:24,336 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-07 18:19:24,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-12-07 18:19:24,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-12-07 18:19:24,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-12-07 18:19:24,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 38 transitions. [2019-12-07 18:19:24,339 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 38 transitions. Word has length 10 [2019-12-07 18:19:24,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:19:24,339 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 38 transitions. [2019-12-07 18:19:24,339 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 18:19:24,339 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 38 transitions. [2019-12-07 18:19:24,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 18:19:24,340 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:19:24,340 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:19:24,340 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:19:24,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:19:24,340 INFO L82 PathProgramCache]: Analyzing trace with hash -1050411161, now seen corresponding path program 1 times [2019-12-07 18:19:24,340 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:19:24,341 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128811070] [2019-12-07 18:19:24,341 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:19:24,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:19:24,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:19:24,373 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128811070] [2019-12-07 18:19:24,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:19:24,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:19:24,374 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83824780] [2019-12-07 18:19:24,374 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:19:24,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:19:24,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:19:24,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:19:24,375 INFO L87 Difference]: Start difference. First operand 24 states and 38 transitions. Second operand 3 states. [2019-12-07 18:19:24,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:19:24,381 INFO L93 Difference]: Finished difference Result 27 states and 40 transitions. [2019-12-07 18:19:24,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:19:24,381 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-07 18:19:24,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:19:24,382 INFO L225 Difference]: With dead ends: 27 [2019-12-07 18:19:24,382 INFO L226 Difference]: Without dead ends: 16 [2019-12-07 18:19:24,382 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:19:24,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-12-07 18:19:24,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-12-07 18:19:24,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-07 18:19:24,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-12-07 18:19:24,385 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 11 [2019-12-07 18:19:24,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:19:24,385 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-12-07 18:19:24,385 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:19:24,385 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-12-07 18:19:24,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 18:19:24,386 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:19:24,386 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:19:24,386 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:19:24,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:19:24,386 INFO L82 PathProgramCache]: Analyzing trace with hash -539824735, now seen corresponding path program 2 times [2019-12-07 18:19:24,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:19:24,387 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535910099] [2019-12-07 18:19:24,387 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:19:24,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:19:24,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:19:24,426 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535910099] [2019-12-07 18:19:24,427 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:19:24,427 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:19:24,427 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735968602] [2019-12-07 18:19:24,427 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:19:24,427 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:19:24,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:19:24,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:19:24,428 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 3 states. [2019-12-07 18:19:24,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:19:24,435 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2019-12-07 18:19:24,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:19:24,436 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-07 18:19:24,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:19:24,436 INFO L225 Difference]: With dead ends: 19 [2019-12-07 18:19:24,436 INFO L226 Difference]: Without dead ends: 12 [2019-12-07 18:19:24,436 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:19:24,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-12-07 18:19:24,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-12-07 18:19:24,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-07 18:19:24,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2019-12-07 18:19:24,438 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 11 [2019-12-07 18:19:24,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:19:24,438 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2019-12-07 18:19:24,438 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:19:24,438 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2019-12-07 18:19:24,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 18:19:24,438 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:19:24,438 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:19:24,438 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:19:24,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:19:24,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1154543195, now seen corresponding path program 3 times [2019-12-07 18:19:24,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:19:24,439 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039739623] [2019-12-07 18:19:24,439 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:19:24,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:19:24,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:19:24,477 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039739623] [2019-12-07 18:19:24,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:19:24,478 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:19:24,478 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425582881] [2019-12-07 18:19:24,478 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 18:19:24,478 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:19:24,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:19:24,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:19:24,478 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 5 states. [2019-12-07 18:19:24,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:19:24,488 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2019-12-07 18:19:24,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:19:24,488 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-07 18:19:24,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:19:24,488 INFO L225 Difference]: With dead ends: 11 [2019-12-07 18:19:24,488 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 18:19:24,489 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:19:24,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 18:19:24,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 18:19:24,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 18:19:24,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 18:19:24,489 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-07 18:19:24,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:19:24,489 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:19:24,489 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 18:19:24,489 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 18:19:24,489 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 18:19:24,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:19:24 BasicIcfg [2019-12-07 18:19:24,492 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:19:24,492 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:19:24,492 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:19:24,492 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:19:24,493 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:19:22" (3/4) ... [2019-12-07 18:19:24,495 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 18:19:24,500 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-12-07 18:19:24,500 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-12-07 18:19:24,500 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-12-07 18:19:24,503 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-12-07 18:19:24,503 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 18:19:24,503 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 18:19:24,532 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e6facca7-71de-4a98-9a06-d16bb4bcd8f6/bin/uautomizer/witness.graphml [2019-12-07 18:19:24,532 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:19:24,534 INFO L168 Benchmark]: Toolchain (without parser) took 2282.64 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 933.9 MB in the beginning and 1.0 GB in the end (delta: -85.1 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:19:24,534 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:19:24,535 INFO L168 Benchmark]: CACSL2BoogieTranslator took 394.88 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 933.9 MB in the beginning and 1.1 GB in the end (delta: -132.9 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-12-07 18:19:24,535 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.32 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:19:24,535 INFO L168 Benchmark]: Boogie Preprocessor took 19.22 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:19:24,536 INFO L168 Benchmark]: RCFGBuilder took 213.19 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 28.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 11.5 GB. [2019-12-07 18:19:24,536 INFO L168 Benchmark]: TraceAbstraction took 1572.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 11.5 GB. [2019-12-07 18:19:24,536 INFO L168 Benchmark]: Witness Printer took 40.32 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 18:19:24,538 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 394.88 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 933.9 MB in the beginning and 1.1 GB in the end (delta: -132.9 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.32 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.22 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 213.19 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 28.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1572.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 11.5 GB. * Witness Printer took 40.32 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.7s, 62 ProgramPointsBefore, 22 ProgramPointsAfterwards, 53 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 249 VarBasedMoverChecksPositive, 14 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 14 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 507 CheckedPairsTotal, 44 TotalNumberOfCompositions - 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 4 procedures, 53 locations, 1 error locations. Result: SAFE, OverallTime: 1.5s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 67 SDtfs, 68 SDslu, 45 SDs, 0 SdLazy, 53 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 1997 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...