./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79029053-92a2-467c-89fe-dd81b2d9c4b4/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79029053-92a2-467c-89fe-dd81b2d9c4b4/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79029053-92a2-467c-89fe-dd81b2d9c4b4/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79029053-92a2-467c-89fe-dd81b2d9c4b4/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79029053-92a2-467c-89fe-dd81b2d9c4b4/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79029053-92a2-467c-89fe-dd81b2d9c4b4/bin/uautomizer-UnR33cPsHg --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b6872adb14a2dfa535a444bb6d903bd37f60f26cf718935f2927b47d5c5a6aaa ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:34:02,506 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:34:02,509 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:34:02,551 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:34:02,552 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:34:02,554 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:34:02,556 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:34:02,559 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:34:02,562 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:34:02,563 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:34:02,565 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:34:02,567 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:34:02,568 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:34:02,570 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:34:02,572 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:34:02,575 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:34:02,576 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:34:02,578 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:34:02,581 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:34:02,589 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:34:02,592 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:34:02,595 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:34:02,597 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:34:02,598 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:34:02,602 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:34:02,603 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:34:02,603 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:34:02,605 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:34:02,606 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:34:02,607 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:34:02,608 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:34:02,609 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:34:02,616 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:34:02,619 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:34:02,621 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:34:02,621 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:34:02,622 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:34:02,622 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:34:02,623 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:34:02,624 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:34:02,625 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:34:02,626 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79029053-92a2-467c-89fe-dd81b2d9c4b4/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 09:34:02,659 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:34:02,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:34:02,659 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:34:02,660 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:34:02,661 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:34:02,662 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:34:02,662 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:34:02,662 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:34:02,663 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:34:02,663 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:34:02,663 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:34:02,663 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:34:02,664 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 09:34:02,664 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:34:02,664 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 09:34:02,664 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:34:02,665 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:34:02,665 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:34:02,665 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 09:34:02,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:34:02,666 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:34:02,666 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:34:02,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:34:02,667 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:34:02,667 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:34:02,667 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 09:34:02,668 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:34:02,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:34:02,668 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 09:34:02,669 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 09:34:02,669 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 09:34:02,669 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:34:02,669 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79029053-92a2-467c-89fe-dd81b2d9c4b4/bin/uautomizer-UnR33cPsHg/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79029053-92a2-467c-89fe-dd81b2d9c4b4/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6872adb14a2dfa535a444bb6d903bd37f60f26cf718935f2927b47d5c5a6aaa [2021-10-28 09:34:03,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:34:03,040 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:34:03,044 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:34:03,045 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:34:03,046 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:34:03,048 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79029053-92a2-467c-89fe-dd81b2d9c4b4/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c [2021-10-28 09:34:03,146 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79029053-92a2-467c-89fe-dd81b2d9c4b4/bin/uautomizer-UnR33cPsHg/data/257ce48b8/6c6d40569358417e94813cdab9de6e2f/FLAG98e3978bb [2021-10-28 09:34:03,721 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:34:03,722 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79029053-92a2-467c-89fe-dd81b2d9c4b4/sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c [2021-10-28 09:34:03,732 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79029053-92a2-467c-89fe-dd81b2d9c4b4/bin/uautomizer-UnR33cPsHg/data/257ce48b8/6c6d40569358417e94813cdab9de6e2f/FLAG98e3978bb [2021-10-28 09:34:04,035 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79029053-92a2-467c-89fe-dd81b2d9c4b4/bin/uautomizer-UnR33cPsHg/data/257ce48b8/6c6d40569358417e94813cdab9de6e2f [2021-10-28 09:34:04,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:34:04,041 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:34:04,043 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:34:04,044 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:34:04,048 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:34:04,050 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:34:04" (1/1) ... [2021-10-28 09:34:04,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@755811aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:04, skipping insertion in model container [2021-10-28 09:34:04,052 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:34:04" (1/1) ... [2021-10-28 09:34:04,061 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:34:04,088 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:34:04,370 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79029053-92a2-467c-89fe-dd81b2d9c4b4/sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c[3042,3055] [2021-10-28 09:34:04,391 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:34:04,417 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:34:04,473 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79029053-92a2-467c-89fe-dd81b2d9c4b4/sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c[3042,3055] [2021-10-28 09:34:04,495 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:34:04,516 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:34:04,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:04 WrapperNode [2021-10-28 09:34:04,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:34:04,518 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:34:04,518 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:34:04,519 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:34:04,528 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:04" (1/1) ... [2021-10-28 09:34:04,540 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:04" (1/1) ... [2021-10-28 09:34:04,576 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:34:04,577 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:34:04,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:34:04,578 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:34:04,589 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:04" (1/1) ... [2021-10-28 09:34:04,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:04" (1/1) ... [2021-10-28 09:34:04,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:04" (1/1) ... [2021-10-28 09:34:04,594 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:04" (1/1) ... [2021-10-28 09:34:04,604 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:04" (1/1) ... [2021-10-28 09:34:04,609 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:04" (1/1) ... [2021-10-28 09:34:04,612 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:04" (1/1) ... [2021-10-28 09:34:04,616 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:34:04,617 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:34:04,618 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:34:04,618 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:34:04,619 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:04" (1/1) ... [2021-10-28 09:34:04,641 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:34:04,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79029053-92a2-467c-89fe-dd81b2d9c4b4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:04,680 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79029053-92a2-467c-89fe-dd81b2d9c4b4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:04,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79029053-92a2-467c-89fe-dd81b2d9c4b4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:34:04,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:34:04,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 09:34:04,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 09:34:04,743 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-28 09:34:04,743 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-28 09:34:04,743 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-28 09:34:04,743 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-28 09:34:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-28 09:34:04,744 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-28 09:34:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:34:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-28 09:34:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-28 09:34:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 09:34:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:34:04,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:34:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:34:04,747 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-28 09:34:05,687 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:34:05,688 INFO L299 CfgBuilder]: Removed 27 assume(true) statements. [2021-10-28 09:34:05,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:34:05 BoogieIcfgContainer [2021-10-28 09:34:05,701 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:34:05,703 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:34:05,703 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:34:05,709 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:34:05,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:34:04" (1/3) ... [2021-10-28 09:34:05,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f3c9b07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:34:05, skipping insertion in model container [2021-10-28 09:34:05,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:04" (2/3) ... [2021-10-28 09:34:05,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f3c9b07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:34:05, skipping insertion in model container [2021-10-28 09:34:05,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:34:05" (3/3) ... [2021-10-28 09:34:05,713 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-multiply-verify.wvr.c [2021-10-28 09:34:05,720 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-28 09:34:05,720 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:34:05,720 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 09:34:05,720 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-28 09:34:05,798 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,799 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,799 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,799 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,799 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,799 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,800 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,800 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,800 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,800 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,800 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,800 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,800 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,801 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,801 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,801 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,801 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,801 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,801 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,802 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,802 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,802 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,802 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,802 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,803 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,803 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,803 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,803 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,804 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,804 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,804 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,804 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,804 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,805 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,805 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,805 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,806 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~x~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,806 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~x~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,806 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,806 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,807 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,807 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,807 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,807 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,808 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~x~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,808 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,808 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,808 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,808 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,809 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~x~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,809 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,809 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,809 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,810 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,810 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~x~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,810 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~x~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,810 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~x~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,810 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~x~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,811 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,811 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,811 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,811 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,812 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,812 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,812 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,812 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,812 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,813 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,813 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,813 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,813 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,814 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,814 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,814 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,814 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,815 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,815 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,815 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,816 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,816 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,816 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,816 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,816 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,817 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,817 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,817 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,817 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,818 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,818 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,818 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,818 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,819 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,822 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,823 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,844 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,845 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,845 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,845 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,845 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,846 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,846 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~x~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,849 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,849 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,850 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,850 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,850 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,850 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,852 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,853 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,853 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,853 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,853 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,854 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,854 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,854 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,854 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:34:05,863 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-28 09:34:05,947 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:34:05,959 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 09:34:05,959 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-28 09:34:05,979 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 143 places, 142 transitions, 308 flow [2021-10-28 09:34:06,063 INFO L129 PetriNetUnfolder]: 9/139 cut-off events. [2021-10-28 09:34:06,064 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-28 09:34:06,071 INFO L84 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 139 events. 9/139 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 87 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 106. Up to 2 conditions per place. [2021-10-28 09:34:06,071 INFO L82 GeneralOperation]: Start removeDead. Operand has 143 places, 142 transitions, 308 flow [2021-10-28 09:34:06,080 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 130 places, 129 transitions, 276 flow [2021-10-28 09:34:06,128 INFO L129 PetriNetUnfolder]: 9/128 cut-off events. [2021-10-28 09:34:06,129 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-28 09:34:06,129 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:34:06,130 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:34:06,131 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-28 09:34:06,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:06,138 INFO L85 PathProgramCache]: Analyzing trace with hash 2094428224, now seen corresponding path program 1 times [2021-10-28 09:34:06,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:34:06,151 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431065420] [2021-10-28 09:34:06,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:06,153 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:34:06,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:06,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:34:06,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:34:06,504 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431065420] [2021-10-28 09:34:06,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431065420] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:34:06,505 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:34:06,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:34:06,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193834472] [2021-10-28 09:34:06,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 09:34:06,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:34:06,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 09:34:06,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 09:34:06,543 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 142 [2021-10-28 09:34:06,549 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 129 transitions, 276 flow. Second operand has 2 states, 2 states have (on average 136.0) internal successors, (272), 2 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:34:06,549 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:34:06,550 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 142 [2021-10-28 09:34:06,552 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:34:06,605 INFO L129 PetriNetUnfolder]: 3/123 cut-off events. [2021-10-28 09:34:06,605 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-28 09:34:06,607 INFO L84 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 123 events. 3/123 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 85 event pairs, 0 based on Foata normal form. 6/123 useless extension candidates. Maximal degree in co-relation 132. Up to 2 conditions per place. [2021-10-28 09:34:06,609 INFO L132 encePairwiseOnDemand]: 136/142 looper letters, 0 selfloop transitions, 0 changer transitions 3/123 dead transitions. [2021-10-28 09:34:06,609 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 123 transitions, 264 flow [2021-10-28 09:34:06,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 09:34:06,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-10-28 09:34:06,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 276 transitions. [2021-10-28 09:34:06,627 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.971830985915493 [2021-10-28 09:34:06,628 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 276 transitions. [2021-10-28 09:34:06,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 276 transitions. [2021-10-28 09:34:06,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:34:06,635 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 276 transitions. [2021-10-28 09:34:06,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 138.0) internal successors, (276), 2 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:34:06,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:34:06,647 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:34:06,649 INFO L186 Difference]: Start difference. First operand has 130 places, 129 transitions, 276 flow. Second operand 2 states and 276 transitions. [2021-10-28 09:34:06,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 123 transitions, 264 flow [2021-10-28 09:34:06,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 123 transitions, 252 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-10-28 09:34:06,661 INFO L242 Difference]: Finished difference. Result has 125 places, 120 transitions, 246 flow [2021-10-28 09:34:06,664 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=246, PETRI_PLACES=125, PETRI_TRANSITIONS=120} [2021-10-28 09:34:06,665 INFO L334 CegarLoopForPetriNet]: 130 programPoint places, -5 predicate places. [2021-10-28 09:34:06,666 INFO L470 AbstractCegarLoop]: Abstraction has has 125 places, 120 transitions, 246 flow [2021-10-28 09:34:06,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 136.0) internal successors, (272), 2 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:34:06,667 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:34:06,667 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:34:06,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 09:34:06,668 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-28 09:34:06,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:06,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1842332776, now seen corresponding path program 1 times [2021-10-28 09:34:06,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:34:06,669 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289621401] [2021-10-28 09:34:06,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:06,670 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:34:06,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:07,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:34:07,165 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:34:07,166 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289621401] [2021-10-28 09:34:07,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289621401] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:34:07,166 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:34:07,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 09:34:07,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45254073] [2021-10-28 09:34:07,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:34:07,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:34:07,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:34:07,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:34:07,179 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 142 [2021-10-28 09:34:07,181 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 120 transitions, 246 flow. Second operand has 6 states, 6 states have (on average 120.16666666666667) internal successors, (721), 6 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:34:07,182 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:34:07,182 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 142 [2021-10-28 09:34:07,182 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:34:07,343 INFO L129 PetriNetUnfolder]: 10/192 cut-off events. [2021-10-28 09:34:07,344 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 09:34:07,346 INFO L84 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 192 events. 10/192 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 363 event pairs, 5 based on Foata normal form. 3/186 useless extension candidates. Maximal degree in co-relation 229. Up to 22 conditions per place. [2021-10-28 09:34:07,348 INFO L132 encePairwiseOnDemand]: 132/142 looper letters, 15 selfloop transitions, 6 changer transitions 1/125 dead transitions. [2021-10-28 09:34:07,348 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 125 transitions, 300 flow [2021-10-28 09:34:07,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:34:07,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-10-28 09:34:07,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 851 transitions. [2021-10-28 09:34:07,357 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8561368209255533 [2021-10-28 09:34:07,357 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 851 transitions. [2021-10-28 09:34:07,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 851 transitions. [2021-10-28 09:34:07,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:34:07,359 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 851 transitions. [2021-10-28 09:34:07,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 121.57142857142857) internal successors, (851), 7 states have internal predecessors, (851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:34:07,370 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 142.0) internal successors, (1136), 8 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:34:07,372 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 142.0) internal successors, (1136), 8 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:34:07,377 INFO L186 Difference]: Start difference. First operand has 125 places, 120 transitions, 246 flow. Second operand 7 states and 851 transitions. [2021-10-28 09:34:07,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 125 transitions, 300 flow [2021-10-28 09:34:07,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 125 transitions, 300 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-28 09:34:07,390 INFO L242 Difference]: Finished difference. Result has 130 places, 121 transitions, 272 flow [2021-10-28 09:34:07,391 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=272, PETRI_PLACES=130, PETRI_TRANSITIONS=121} [2021-10-28 09:34:07,392 INFO L334 CegarLoopForPetriNet]: 130 programPoint places, 0 predicate places. [2021-10-28 09:34:07,393 INFO L470 AbstractCegarLoop]: Abstraction has has 130 places, 121 transitions, 272 flow [2021-10-28 09:34:07,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 120.16666666666667) internal successors, (721), 6 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:34:07,394 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:34:07,395 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2021-10-28 09:34:07,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 09:34:07,395 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-28 09:34:07,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:07,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1037109290, now seen corresponding path program 1 times [2021-10-28 09:34:07,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:34:07,401 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131556037] [2021-10-28 09:34:07,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:07,401 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:34:07,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:07,698 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:34:07,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:34:07,699 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131556037] [2021-10-28 09:34:07,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131556037] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:34:07,702 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709087373] [2021-10-28 09:34:07,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:07,703 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:34:07,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79029053-92a2-467c-89fe-dd81b2d9c4b4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:07,705 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79029053-92a2-467c-89fe-dd81b2d9c4b4/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:34:07,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79029053-92a2-467c-89fe-dd81b2d9c4b4/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 09:34:07,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:07,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 09:34:07,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:34:08,592 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:34:08,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709087373] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:34:08,593 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:34:08,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-10-28 09:34:08,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574503018] [2021-10-28 09:34:08,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 09:34:08,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:34:08,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 09:34:08,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:34:08,606 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 142 [2021-10-28 09:34:08,610 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 121 transitions, 272 flow. Second operand has 11 states, 11 states have (on average 119.27272727272727) internal successors, (1312), 11 states have internal predecessors, (1312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:34:08,610 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:34:08,610 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 142 [2021-10-28 09:34:08,610 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:34:08,875 INFO L129 PetriNetUnfolder]: 11/218 cut-off events. [2021-10-28 09:34:08,876 INFO L130 PetriNetUnfolder]: For 18/34 co-relation queries the response was YES. [2021-10-28 09:34:08,878 INFO L84 FinitePrefix]: Finished finitePrefix Result has 298 conditions, 218 events. 11/218 cut-off events. For 18/34 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 518 event pairs, 6 based on Foata normal form. 2/212 useless extension candidates. Maximal degree in co-relation 292. Up to 23 conditions per place. [2021-10-28 09:34:08,880 INFO L132 encePairwiseOnDemand]: 132/142 looper letters, 18 selfloop transitions, 9 changer transitions 3/132 dead transitions. [2021-10-28 09:34:08,880 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 132 transitions, 362 flow [2021-10-28 09:34:08,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 09:34:08,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-10-28 09:34:08,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1201 transitions. [2021-10-28 09:34:08,887 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8457746478873239 [2021-10-28 09:34:08,887 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1201 transitions. [2021-10-28 09:34:08,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1201 transitions. [2021-10-28 09:34:08,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:34:08,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1201 transitions. [2021-10-28 09:34:08,894 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 120.1) internal successors, (1201), 10 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:34:08,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 142.0) internal successors, (1562), 11 states have internal predecessors, (1562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:34:08,902 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 142.0) internal successors, (1562), 11 states have internal predecessors, (1562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:34:08,902 INFO L186 Difference]: Start difference. First operand has 130 places, 121 transitions, 272 flow. Second operand 10 states and 1201 transitions. [2021-10-28 09:34:08,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 132 transitions, 362 flow [2021-10-28 09:34:08,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 132 transitions, 352 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-10-28 09:34:08,911 INFO L242 Difference]: Finished difference. Result has 138 places, 124 transitions, 304 flow [2021-10-28 09:34:08,911 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=304, PETRI_PLACES=138, PETRI_TRANSITIONS=124} [2021-10-28 09:34:08,912 INFO L334 CegarLoopForPetriNet]: 130 programPoint places, 8 predicate places. [2021-10-28 09:34:08,912 INFO L470 AbstractCegarLoop]: Abstraction has has 138 places, 124 transitions, 304 flow [2021-10-28 09:34:08,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 119.27272727272727) internal successors, (1312), 11 states have internal predecessors, (1312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:34:08,914 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:34:08,915 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:34:08,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79029053-92a2-467c-89fe-dd81b2d9c4b4/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:09,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79029053-92a2-467c-89fe-dd81b2d9c4b4/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:34:09,142 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-28 09:34:09,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:09,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1112067640, now seen corresponding path program 2 times [2021-10-28 09:34:09,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:34:09,143 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535091921] [2021-10-28 09:34:09,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:09,144 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:34:09,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:09,450 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:34:09,451 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:34:09,455 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535091921] [2021-10-28 09:34:09,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535091921] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:34:09,457 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1510355758] [2021-10-28 09:34:09,457 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:34:09,458 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:34:09,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79029053-92a2-467c-89fe-dd81b2d9c4b4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:09,459 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79029053-92a2-467c-89fe-dd81b2d9c4b4/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:34:09,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79029053-92a2-467c-89fe-dd81b2d9c4b4/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 09:34:09,634 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 09:34:09,635 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:34:09,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:34:09,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:34:10,126 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-28 09:34:10,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1510355758] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:34:10,128 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:34:10,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2021-10-28 09:34:10,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574972973] [2021-10-28 09:34:10,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:34:10,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:34:10,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:34:10,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:34:10,132 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 142 [2021-10-28 09:34:10,134 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 124 transitions, 304 flow. Second operand has 3 states, 3 states have (on average 129.0) internal successors, (387), 3 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:34:10,135 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:34:10,135 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 142 [2021-10-28 09:34:10,135 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:34:10,190 INFO L129 PetriNetUnfolder]: 10/164 cut-off events. [2021-10-28 09:34:10,190 INFO L130 PetriNetUnfolder]: For 24/32 co-relation queries the response was YES. [2021-10-28 09:34:10,193 INFO L84 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 164 events. 10/164 cut-off events. For 24/32 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 224 event pairs, 3 based on Foata normal form. 1/161 useless extension candidates. Maximal degree in co-relation 228. Up to 23 conditions per place. [2021-10-28 09:34:10,194 INFO L132 encePairwiseOnDemand]: 138/142 looper letters, 8 selfloop transitions, 3 changer transitions 0/126 dead transitions. [2021-10-28 09:34:10,194 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 126 transitions, 334 flow [2021-10-28 09:34:10,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:34:10,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-28 09:34:10,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 390 transitions. [2021-10-28 09:34:10,197 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9154929577464789 [2021-10-28 09:34:10,198 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 390 transitions. [2021-10-28 09:34:10,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 390 transitions. [2021-10-28 09:34:10,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:34:10,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 390 transitions. [2021-10-28 09:34:10,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:34:10,206 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:34:10,206 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:34:10,208 INFO L186 Difference]: Start difference. First operand has 138 places, 124 transitions, 304 flow. Second operand 3 states and 390 transitions. [2021-10-28 09:34:10,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 126 transitions, 334 flow [2021-10-28 09:34:10,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 126 transitions, 318 flow, removed 2 selfloop flow, removed 6 redundant places. [2021-10-28 09:34:10,219 INFO L242 Difference]: Finished difference. Result has 134 places, 126 transitions, 311 flow [2021-10-28 09:34:10,219 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=311, PETRI_PLACES=134, PETRI_TRANSITIONS=126} [2021-10-28 09:34:10,220 INFO L334 CegarLoopForPetriNet]: 130 programPoint places, 4 predicate places. [2021-10-28 09:34:10,220 INFO L470 AbstractCegarLoop]: Abstraction has has 134 places, 126 transitions, 311 flow [2021-10-28 09:34:10,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 129.0) internal successors, (387), 3 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:34:10,221 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:34:10,221 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:34:10,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79029053-92a2-467c-89fe-dd81b2d9c4b4/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:10,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79029053-92a2-467c-89fe-dd81b2d9c4b4/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:34:10,429 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-28 09:34:10,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:10,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1051415528, now seen corresponding path program 3 times [2021-10-28 09:34:10,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:34:10,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539056797] [2021-10-28 09:34:10,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:10,431 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:34:10,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:10,639 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:34:10,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:34:10,640 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539056797] [2021-10-28 09:34:10,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539056797] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:34:10,640 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1401014385] [2021-10-28 09:34:10,640 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 09:34:10,641 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:34:10,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79029053-92a2-467c-89fe-dd81b2d9c4b4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:10,646 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79029053-92a2-467c-89fe-dd81b2d9c4b4/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:34:10,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79029053-92a2-467c-89fe-dd81b2d9c4b4/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-28 09:34:10,876 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-28 09:34:10,876 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:34:10,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 09:34:10,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:34:11,417 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-28 09:34:11,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1401014385] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:34:11,418 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:34:11,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2021-10-28 09:34:11,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600007133] [2021-10-28 09:34:11,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 09:34:11,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:34:11,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:34:11,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:34:11,424 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 142 [2021-10-28 09:34:11,426 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 126 transitions, 311 flow. Second operand has 7 states, 7 states have (on average 112.28571428571429) internal successors, (786), 7 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:34:11,426 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:34:11,427 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 142 [2021-10-28 09:34:11,427 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:34:11,591 INFO L129 PetriNetUnfolder]: 3/106 cut-off events. [2021-10-28 09:34:11,591 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-10-28 09:34:11,592 INFO L84 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 106 events. 3/106 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 2/106 useless extension candidates. Maximal degree in co-relation 143. Up to 6 conditions per place. [2021-10-28 09:34:11,592 INFO L132 encePairwiseOnDemand]: 133/142 looper letters, 0 selfloop transitions, 0 changer transitions 97/97 dead transitions. [2021-10-28 09:34:11,593 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 97 transitions, 260 flow [2021-10-28 09:34:11,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:34:11,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-10-28 09:34:11,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 890 transitions. [2021-10-28 09:34:11,599 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7834507042253521 [2021-10-28 09:34:11,599 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 890 transitions. [2021-10-28 09:34:11,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 890 transitions. [2021-10-28 09:34:11,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:34:11,601 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 890 transitions. [2021-10-28 09:34:11,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 111.25) internal successors, (890), 8 states have internal predecessors, (890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:34:11,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 142.0) internal successors, (1278), 9 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:34:11,611 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 142.0) internal successors, (1278), 9 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:34:11,611 INFO L186 Difference]: Start difference. First operand has 134 places, 126 transitions, 311 flow. Second operand 8 states and 890 transitions. [2021-10-28 09:34:11,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 97 transitions, 260 flow [2021-10-28 09:34:11,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 97 transitions, 258 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-28 09:34:11,615 INFO L242 Difference]: Finished difference. Result has 112 places, 0 transitions, 0 flow [2021-10-28 09:34:11,616 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=112, PETRI_TRANSITIONS=0} [2021-10-28 09:34:11,616 INFO L334 CegarLoopForPetriNet]: 130 programPoint places, -18 predicate places. [2021-10-28 09:34:11,617 INFO L470 AbstractCegarLoop]: Abstraction has has 112 places, 0 transitions, 0 flow [2021-10-28 09:34:11,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 112.28571428571429) internal successors, (786), 7 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:34:11,621 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:34:11,622 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-28 09:34:11,622 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-28 09:34:11,622 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-28 09:34:11,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79029053-92a2-467c-89fe-dd81b2d9c4b4/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:11,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79029053-92a2-467c-89fe-dd81b2d9c4b4/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:34:11,853 INFO L731 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2021-10-28 09:34:11,856 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-28 09:34:11,856 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:34:11,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:34:11 BasicIcfg [2021-10-28 09:34:11,860 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:34:11,860 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:34:11,861 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:34:11,861 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:34:11,861 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:34:05" (3/4) ... [2021-10-28 09:34:11,873 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 09:34:11,882 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-28 09:34:11,882 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-28 09:34:11,883 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-10-28 09:34:11,891 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2021-10-28 09:34:11,891 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 09:34:11,892 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 09:34:11,892 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 09:34:11,956 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79029053-92a2-467c-89fe-dd81b2d9c4b4/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 09:34:11,961 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:34:11,962 INFO L168 Benchmark]: Toolchain (without parser) took 7920.61 ms. Allocated memory was 98.6 MB in the beginning and 161.5 MB in the end (delta: 62.9 MB). Free memory was 60.7 MB in the beginning and 106.9 MB in the end (delta: -46.2 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. [2021-10-28 09:34:11,963 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 98.6 MB. Free memory is still 77.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:34:11,963 INFO L168 Benchmark]: CACSL2BoogieTranslator took 473.99 ms. Allocated memory is still 98.6 MB. Free memory was 60.5 MB in the beginning and 71.8 MB in the end (delta: -11.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:34:11,964 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.66 ms. Allocated memory is still 98.6 MB. Free memory was 71.4 MB in the beginning and 69.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:34:11,965 INFO L168 Benchmark]: Boogie Preprocessor took 39.08 ms. Allocated memory is still 98.6 MB. Free memory was 69.7 MB in the beginning and 68.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:34:11,965 INFO L168 Benchmark]: RCFGBuilder took 1083.78 ms. Allocated memory is still 98.6 MB. Free memory was 68.0 MB in the beginning and 45.4 MB in the end (delta: 22.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:34:11,966 INFO L168 Benchmark]: TraceAbstraction took 6156.50 ms. Allocated memory was 98.6 MB in the beginning and 161.5 MB in the end (delta: 62.9 MB). Free memory was 45.0 MB in the beginning and 110.1 MB in the end (delta: -65.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:34:11,966 INFO L168 Benchmark]: Witness Printer took 100.37 ms. Allocated memory is still 161.5 MB. Free memory was 110.1 MB in the beginning and 106.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:34:11,969 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 98.6 MB. Free memory is still 77.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 473.99 ms. Allocated memory is still 98.6 MB. Free memory was 60.5 MB in the beginning and 71.8 MB in the end (delta: -11.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 58.66 ms. Allocated memory is still 98.6 MB. Free memory was 71.4 MB in the beginning and 69.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.08 ms. Allocated memory is still 98.6 MB. Free memory was 69.7 MB in the beginning and 68.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1083.78 ms. Allocated memory is still 98.6 MB. Free memory was 68.0 MB in the beginning and 45.4 MB in the end (delta: 22.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6156.50 ms. Allocated memory was 98.6 MB in the beginning and 161.5 MB in the end (delta: 62.9 MB). Free memory was 45.0 MB in the beginning and 110.1 MB in the end (delta: -65.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 100.37 ms. Allocated memory is still 161.5 MB. Free memory was 110.1 MB in the beginning and 106.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 110]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 168 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.9s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 28 SDtfs, 120 SDslu, 18 SDs, 0 SdLazy, 170 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 386 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=311occurred in iteration=4, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 894 NumberOfCodeBlocks, 866 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 886 ConstructedInterpolants, 0 QuantifiedInterpolants, 1616 SizeOfPredicates, 17 NumberOfNonLiveVariables, 799 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 34/38 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-28 09:34:12,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79029053-92a2-467c-89fe-dd81b2d9c4b4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...