./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-more-min-array-hom.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_0823a2ff-2cac-4f52-bfab-66a13944ae5c/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0823a2ff-2cac-4f52-bfab-66a13944ae5c/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0823a2ff-2cac-4f52-bfab-66a13944ae5c/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0823a2ff-2cac-4f52-bfab-66a13944ae5c/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-min-array-hom.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0823a2ff-2cac-4f52-bfab-66a13944ae5c/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0823a2ff-2cac-4f52-bfab-66a13944ae5c/bin/uautomizer-GMMbpWq8iD --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 ceb4cfb737a49cea9ea1be451c16ebb29f48ae611a8c94fc546ca2e3471f0eb3 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 22:51:41,406 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 22:51:41,410 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 22:51:41,472 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 22:51:41,472 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 22:51:41,477 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 22:51:41,479 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 22:51:41,483 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 22:51:41,486 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 22:51:41,491 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 22:51:41,493 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 22:51:41,495 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 22:51:41,495 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 22:51:41,498 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 22:51:41,500 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 22:51:41,506 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 22:51:41,508 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 22:51:41,509 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 22:51:41,512 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 22:51:41,523 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 22:51:41,525 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 22:51:41,527 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 22:51:41,531 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 22:51:41,532 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 22:51:41,542 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 22:51:41,543 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 22:51:41,543 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 22:51:41,546 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 22:51:41,546 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 22:51:41,548 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 22:51:41,548 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 22:51:41,549 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 22:51:41,551 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 22:51:41,553 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 22:51:41,555 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 22:51:41,555 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 22:51:41,556 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 22:51:41,556 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 22:51:41,556 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 22:51:41,557 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 22:51:41,558 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 22:51:41,559 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0823a2ff-2cac-4f52-bfab-66a13944ae5c/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 22:51:41,606 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 22:51:41,607 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 22:51:41,607 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 22:51:41,608 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 22:51:41,609 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 22:51:41,610 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 22:51:41,610 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 22:51:41,610 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 22:51:41,610 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 22:51:41,611 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 22:51:41,612 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 22:51:41,612 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 22:51:41,612 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 22:51:41,613 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 22:51:41,613 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 22:51:41,613 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 22:51:41,613 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 22:51:41,613 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 22:51:41,614 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 22:51:41,614 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 22:51:41,614 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 22:51:41,614 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 22:51:41,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 22:51:41,615 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 22:51:41,615 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 22:51:41,615 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 22:51:41,616 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 22:51:41,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 22:51:41,616 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 22:51:41,618 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 22:51:41,618 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 22:51:41,618 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 22:51:41,618 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_0823a2ff-2cac-4f52-bfab-66a13944ae5c/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0823a2ff-2cac-4f52-bfab-66a13944ae5c/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ceb4cfb737a49cea9ea1be451c16ebb29f48ae611a8c94fc546ca2e3471f0eb3 [2021-10-28 22:51:42,009 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 22:51:42,040 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 22:51:42,043 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 22:51:42,044 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 22:51:42,045 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 22:51:42,046 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0823a2ff-2cac-4f52-bfab-66a13944ae5c/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/weaver/popl20-more-min-array-hom.wvr.c [2021-10-28 22:51:42,130 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0823a2ff-2cac-4f52-bfab-66a13944ae5c/bin/uautomizer-GMMbpWq8iD/data/fe623b612/a86500ec5cf44c95b1a042e5010c1a82/FLAG88994f9eb [2021-10-28 22:51:42,772 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 22:51:42,774 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0823a2ff-2cac-4f52-bfab-66a13944ae5c/sv-benchmarks/c/weaver/popl20-more-min-array-hom.wvr.c [2021-10-28 22:51:42,791 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0823a2ff-2cac-4f52-bfab-66a13944ae5c/bin/uautomizer-GMMbpWq8iD/data/fe623b612/a86500ec5cf44c95b1a042e5010c1a82/FLAG88994f9eb [2021-10-28 22:51:43,083 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0823a2ff-2cac-4f52-bfab-66a13944ae5c/bin/uautomizer-GMMbpWq8iD/data/fe623b612/a86500ec5cf44c95b1a042e5010c1a82 [2021-10-28 22:51:43,087 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 22:51:43,090 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 22:51:43,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 22:51:43,096 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 22:51:43,100 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 22:51:43,101 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:51:43" (1/1) ... [2021-10-28 22:51:43,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53fca5c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:43, skipping insertion in model container [2021-10-28 22:51:43,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:51:43" (1/1) ... [2021-10-28 22:51:43,113 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 22:51:43,146 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 22:51:43,424 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_0823a2ff-2cac-4f52-bfab-66a13944ae5c/sv-benchmarks/c/weaver/popl20-more-min-array-hom.wvr.c[2586,2599] [2021-10-28 22:51:43,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:51:43,443 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 22:51:43,474 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_0823a2ff-2cac-4f52-bfab-66a13944ae5c/sv-benchmarks/c/weaver/popl20-more-min-array-hom.wvr.c[2586,2599] [2021-10-28 22:51:43,482 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:51:43,516 INFO L208 MainTranslator]: Completed translation [2021-10-28 22:51:43,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:43 WrapperNode [2021-10-28 22:51:43,518 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 22:51:43,519 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 22:51:43,519 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 22:51:43,520 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 22:51:43,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:43" (1/1) ... [2021-10-28 22:51:43,547 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:43" (1/1) ... [2021-10-28 22:51:43,598 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 22:51:43,602 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 22:51:43,602 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 22:51:43,603 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 22:51:43,613 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:43" (1/1) ... [2021-10-28 22:51:43,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:43" (1/1) ... [2021-10-28 22:51:43,637 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:43" (1/1) ... [2021-10-28 22:51:43,638 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:43" (1/1) ... [2021-10-28 22:51:43,646 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:43" (1/1) ... [2021-10-28 22:51:43,666 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:43" (1/1) ... [2021-10-28 22:51:43,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:43" (1/1) ... [2021-10-28 22:51:43,682 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 22:51:43,683 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 22:51:43,683 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 22:51:43,683 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 22:51:43,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:43" (1/1) ... [2021-10-28 22:51:43,704 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 22:51:43,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0823a2ff-2cac-4f52-bfab-66a13944ae5c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:43,744 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0823a2ff-2cac-4f52-bfab-66a13944ae5c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:43,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0823a2ff-2cac-4f52-bfab-66a13944ae5c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 22:51:43,804 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-28 22:51:43,804 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-28 22:51:43,804 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-28 22:51:43,805 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-28 22:51:43,805 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-28 22:51:43,805 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-28 22:51:43,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 22:51:43,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 22:51:43,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 22:51:43,806 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-28 22:51:43,806 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-28 22:51:43,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 22:51:43,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 22:51:43,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 22:51:43,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 22:51:43,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 22:51:43,809 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 22:51:44,625 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 22:51:44,626 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-10-28 22:51:44,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:51:44 BoogieIcfgContainer [2021-10-28 22:51:44,629 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 22:51:44,631 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 22:51:44,631 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 22:51:44,641 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 22:51:44,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 10:51:43" (1/3) ... [2021-10-28 22:51:44,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2571c1e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:51:44, skipping insertion in model container [2021-10-28 22:51:44,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:43" (2/3) ... [2021-10-28 22:51:44,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2571c1e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:51:44, skipping insertion in model container [2021-10-28 22:51:44,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:51:44" (3/3) ... [2021-10-28 22:51:44,645 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-min-array-hom.wvr.c [2021-10-28 22:51:44,657 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-28 22:51:44,657 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 22:51:44,657 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 22:51:44,657 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-28 22:51:44,727 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,727 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,727 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,728 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,728 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,728 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,728 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,728 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,729 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,729 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,729 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,729 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,730 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,730 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,730 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,730 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,730 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,731 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,732 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,732 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,732 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,733 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,733 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,734 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,734 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,735 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,736 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,736 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,737 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,737 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,738 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,738 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,738 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,739 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,739 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,739 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,739 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,739 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,740 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,741 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,741 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,741 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,741 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,741 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,742 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,742 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,742 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,742 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,743 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,743 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,744 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,744 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,744 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,744 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,744 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,745 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,746 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,746 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,747 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,747 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,747 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,748 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,748 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,749 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,749 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,750 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,750 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,750 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,750 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,750 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,751 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,751 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,752 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,752 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,752 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,753 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,753 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,753 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,753 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,753 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,754 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,754 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,755 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,755 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,766 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,770 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,770 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,770 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,771 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,771 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,775 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,776 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,776 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,776 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,782 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,782 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,785 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,786 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,786 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,786 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,786 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,786 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:51:44,800 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-28 22:51:44,877 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 22:51:44,891 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 22:51:44,892 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-28 22:51:44,917 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 142 places, 145 transitions, 314 flow [2021-10-28 22:51:45,042 INFO L129 PetriNetUnfolder]: 13/142 cut-off events. [2021-10-28 22:51:45,045 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-28 22:51:45,051 INFO L84 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 142 events. 13/142 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 97 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 102. Up to 2 conditions per place. [2021-10-28 22:51:45,051 INFO L82 GeneralOperation]: Start removeDead. Operand has 142 places, 145 transitions, 314 flow [2021-10-28 22:51:45,063 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 129 places, 132 transitions, 282 flow [2021-10-28 22:51:45,136 INFO L129 PetriNetUnfolder]: 13/131 cut-off events. [2021-10-28 22:51:45,137 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-28 22:51:45,137 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:51:45,138 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] [2021-10-28 22:51:45,138 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 22:51:45,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:45,149 INFO L85 PathProgramCache]: Analyzing trace with hash 869547672, now seen corresponding path program 1 times [2021-10-28 22:51:45,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:45,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943187864] [2021-10-28 22:51:45,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:45,162 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:45,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:45,862 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 22:51:45,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:45,863 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943187864] [2021-10-28 22:51:45,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943187864] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:45,864 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:45,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 22:51:45,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219004894] [2021-10-28 22:51:45,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 22:51:45,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:45,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 22:51:45,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-28 22:51:45,912 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 145 [2021-10-28 22:51:45,923 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 132 transitions, 282 flow. Second operand has 7 states, 7 states have (on average 109.14285714285714) internal successors, (764), 7 states have internal predecessors, (764), 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 22:51:45,923 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:51:45,923 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 145 [2021-10-28 22:51:45,925 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:51:46,266 INFO L129 PetriNetUnfolder]: 10/185 cut-off events. [2021-10-28 22:51:46,267 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2021-10-28 22:51:46,270 INFO L84 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 185 events. 10/185 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 332 event pairs, 0 based on Foata normal form. 19/185 useless extension candidates. Maximal degree in co-relation 143. Up to 22 conditions per place. [2021-10-28 22:51:46,274 INFO L132 encePairwiseOnDemand]: 125/145 looper letters, 41 selfloop transitions, 5 changer transitions 12/152 dead transitions. [2021-10-28 22:51:46,274 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 152 transitions, 438 flow [2021-10-28 22:51:46,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 22:51:46,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-10-28 22:51:46,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1136 transitions. [2021-10-28 22:51:46,315 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.783448275862069 [2021-10-28 22:51:46,316 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1136 transitions. [2021-10-28 22:51:46,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1136 transitions. [2021-10-28 22:51:46,323 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:51:46,325 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1136 transitions. [2021-10-28 22:51:46,335 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 113.6) internal successors, (1136), 10 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 22:51:46,347 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 145.0) internal successors, (1595), 11 states have internal predecessors, (1595), 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 22:51:46,349 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 145.0) internal successors, (1595), 11 states have internal predecessors, (1595), 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 22:51:46,351 INFO L186 Difference]: Start difference. First operand has 129 places, 132 transitions, 282 flow. Second operand 10 states and 1136 transitions. [2021-10-28 22:51:46,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 152 transitions, 438 flow [2021-10-28 22:51:46,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 152 transitions, 426 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-10-28 22:51:46,365 INFO L242 Difference]: Finished difference. Result has 136 places, 123 transitions, 277 flow [2021-10-28 22:51:46,367 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=277, PETRI_PLACES=136, PETRI_TRANSITIONS=123} [2021-10-28 22:51:46,368 INFO L334 CegarLoopForPetriNet]: 129 programPoint places, 7 predicate places. [2021-10-28 22:51:46,369 INFO L470 AbstractCegarLoop]: Abstraction has has 136 places, 123 transitions, 277 flow [2021-10-28 22:51:46,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 109.14285714285714) internal successors, (764), 7 states have internal predecessors, (764), 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 22:51:46,370 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:51:46,371 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] [2021-10-28 22:51:46,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 22:51:46,371 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 22:51:46,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:46,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1933911506, now seen corresponding path program 1 times [2021-10-28 22:51:46,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:46,375 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616962611] [2021-10-28 22:51:46,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:46,375 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:46,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:46,608 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 22:51:46,609 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:46,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616962611] [2021-10-28 22:51:46,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616962611] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:46,610 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:46,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 22:51:46,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372078887] [2021-10-28 22:51:46,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 22:51:46,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:46,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 22:51:46,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 22:51:46,618 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 145 [2021-10-28 22:51:46,621 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 123 transitions, 277 flow. Second operand has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 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 22:51:46,622 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:51:46,622 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 145 [2021-10-28 22:51:46,622 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:51:46,711 INFO L129 PetriNetUnfolder]: 17/229 cut-off events. [2021-10-28 22:51:46,711 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2021-10-28 22:51:46,715 INFO L84 FinitePrefix]: Finished finitePrefix Result has 308 conditions, 229 events. 17/229 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 570 event pairs, 0 based on Foata normal form. 0/207 useless extension candidates. Maximal degree in co-relation 281. Up to 21 conditions per place. [2021-10-28 22:51:46,716 INFO L132 encePairwiseOnDemand]: 140/145 looper letters, 13 selfloop transitions, 7 changer transitions 0/134 dead transitions. [2021-10-28 22:51:46,717 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 134 transitions, 350 flow [2021-10-28 22:51:46,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 22:51:46,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-10-28 22:51:46,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 531 transitions. [2021-10-28 22:51:46,720 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9155172413793103 [2021-10-28 22:51:46,721 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 531 transitions. [2021-10-28 22:51:46,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 531 transitions. [2021-10-28 22:51:46,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:51:46,722 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 531 transitions. [2021-10-28 22:51:46,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 132.75) internal successors, (531), 4 states have internal predecessors, (531), 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 22:51:46,726 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 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 22:51:46,727 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 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 22:51:46,727 INFO L186 Difference]: Start difference. First operand has 136 places, 123 transitions, 277 flow. Second operand 4 states and 531 transitions. [2021-10-28 22:51:46,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 134 transitions, 350 flow [2021-10-28 22:51:46,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 134 transitions, 344 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-10-28 22:51:46,736 INFO L242 Difference]: Finished difference. Result has 127 places, 127 transitions, 310 flow [2021-10-28 22:51:46,737 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=310, PETRI_PLACES=127, PETRI_TRANSITIONS=127} [2021-10-28 22:51:46,742 INFO L334 CegarLoopForPetriNet]: 129 programPoint places, -2 predicate places. [2021-10-28 22:51:46,742 INFO L470 AbstractCegarLoop]: Abstraction has has 127 places, 127 transitions, 310 flow [2021-10-28 22:51:46,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 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 22:51:46,743 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:51:46,743 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] [2021-10-28 22:51:46,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 22:51:46,744 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 22:51:46,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:46,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1495482145, now seen corresponding path program 1 times [2021-10-28 22:51:46,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:46,747 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819294863] [2021-10-28 22:51:46,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:46,748 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:46,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:46,909 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:46,909 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:46,909 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819294863] [2021-10-28 22:51:46,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819294863] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:46,910 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:46,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 22:51:46,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309114770] [2021-10-28 22:51:46,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 22:51:46,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:46,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 22:51:46,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-28 22:51:46,914 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 145 [2021-10-28 22:51:46,916 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 127 transitions, 310 flow. Second operand has 7 states, 7 states have (on average 114.71428571428571) internal successors, (803), 7 states have internal predecessors, (803), 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 22:51:46,916 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:51:46,916 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 145 [2021-10-28 22:51:46,917 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:51:47,227 INFO L129 PetriNetUnfolder]: 106/654 cut-off events. [2021-10-28 22:51:47,227 INFO L130 PetriNetUnfolder]: For 16/19 co-relation queries the response was YES. [2021-10-28 22:51:47,230 INFO L84 FinitePrefix]: Finished finitePrefix Result has 947 conditions, 654 events. 106/654 cut-off events. For 16/19 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3838 event pairs, 54 based on Foata normal form. 0/561 useless extension candidates. Maximal degree in co-relation 408. Up to 147 conditions per place. [2021-10-28 22:51:47,237 INFO L132 encePairwiseOnDemand]: 136/145 looper letters, 31 selfloop transitions, 8 changer transitions 0/140 dead transitions. [2021-10-28 22:51:47,237 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 140 transitions, 415 flow [2021-10-28 22:51:47,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 22:51:47,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-10-28 22:51:47,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 934 transitions. [2021-10-28 22:51:47,241 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8051724137931034 [2021-10-28 22:51:47,241 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 934 transitions. [2021-10-28 22:51:47,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 934 transitions. [2021-10-28 22:51:47,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:51:47,243 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 934 transitions. [2021-10-28 22:51:47,246 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 116.75) internal successors, (934), 8 states have internal predecessors, (934), 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 22:51:47,250 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 145.0) internal successors, (1305), 9 states have internal predecessors, (1305), 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 22:51:47,251 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 145.0) internal successors, (1305), 9 states have internal predecessors, (1305), 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 22:51:47,251 INFO L186 Difference]: Start difference. First operand has 127 places, 127 transitions, 310 flow. Second operand 8 states and 934 transitions. [2021-10-28 22:51:47,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 140 transitions, 415 flow [2021-10-28 22:51:47,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 140 transitions, 415 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-28 22:51:47,260 INFO L242 Difference]: Finished difference. Result has 137 places, 130 transitions, 346 flow [2021-10-28 22:51:47,260 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=346, PETRI_PLACES=137, PETRI_TRANSITIONS=130} [2021-10-28 22:51:47,261 INFO L334 CegarLoopForPetriNet]: 129 programPoint places, 8 predicate places. [2021-10-28 22:51:47,261 INFO L470 AbstractCegarLoop]: Abstraction has has 137 places, 130 transitions, 346 flow [2021-10-28 22:51:47,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 114.71428571428571) internal successors, (803), 7 states have internal predecessors, (803), 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 22:51:47,263 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:51:47,263 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] [2021-10-28 22:51:47,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 22:51:47,263 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 22:51:47,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:47,264 INFO L85 PathProgramCache]: Analyzing trace with hash 271981983, now seen corresponding path program 1 times [2021-10-28 22:51:47,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:47,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109352254] [2021-10-28 22:51:47,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:47,265 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:47,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:47,637 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:47,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:47,637 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109352254] [2021-10-28 22:51:47,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109352254] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:47,638 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:47,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-28 22:51:47,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749457458] [2021-10-28 22:51:47,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 22:51:47,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:47,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 22:51:47,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-10-28 22:51:47,650 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 145 [2021-10-28 22:51:47,652 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 130 transitions, 346 flow. Second operand has 10 states, 10 states have (on average 93.6) internal successors, (936), 10 states have internal predecessors, (936), 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 22:51:47,652 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:51:47,652 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 145 [2021-10-28 22:51:47,652 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:51:48,379 INFO L129 PetriNetUnfolder]: 563/1483 cut-off events. [2021-10-28 22:51:48,379 INFO L130 PetriNetUnfolder]: For 264/282 co-relation queries the response was YES. [2021-10-28 22:51:48,389 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2799 conditions, 1483 events. 563/1483 cut-off events. For 264/282 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 9996 event pairs, 367 based on Foata normal form. 18/1257 useless extension candidates. Maximal degree in co-relation 2423. Up to 777 conditions per place. [2021-10-28 22:51:48,406 INFO L132 encePairwiseOnDemand]: 133/145 looper letters, 59 selfloop transitions, 11 changer transitions 0/152 dead transitions. [2021-10-28 22:51:48,406 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 152 transitions, 531 flow [2021-10-28 22:51:48,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 22:51:48,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-10-28 22:51:48,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1057 transitions. [2021-10-28 22:51:48,412 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6626959247648903 [2021-10-28 22:51:48,413 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1057 transitions. [2021-10-28 22:51:48,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1057 transitions. [2021-10-28 22:51:48,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:51:48,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1057 transitions. [2021-10-28 22:51:48,419 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 96.0909090909091) internal successors, (1057), 11 states have internal predecessors, (1057), 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 22:51:48,426 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 145.0) internal successors, (1740), 12 states have internal predecessors, (1740), 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 22:51:48,428 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 145.0) internal successors, (1740), 12 states have internal predecessors, (1740), 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 22:51:48,428 INFO L186 Difference]: Start difference. First operand has 137 places, 130 transitions, 346 flow. Second operand 11 states and 1057 transitions. [2021-10-28 22:51:48,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 152 transitions, 531 flow [2021-10-28 22:51:48,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 152 transitions, 521 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-10-28 22:51:48,441 INFO L242 Difference]: Finished difference. Result has 148 places, 134 transitions, 385 flow [2021-10-28 22:51:48,441 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=385, PETRI_PLACES=148, PETRI_TRANSITIONS=134} [2021-10-28 22:51:48,442 INFO L334 CegarLoopForPetriNet]: 129 programPoint places, 19 predicate places. [2021-10-28 22:51:48,442 INFO L470 AbstractCegarLoop]: Abstraction has has 148 places, 134 transitions, 385 flow [2021-10-28 22:51:48,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 93.6) internal successors, (936), 10 states have internal predecessors, (936), 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 22:51:48,443 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:51:48,443 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] [2021-10-28 22:51:48,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 22:51:48,444 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 22:51:48,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:48,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1363202329, now seen corresponding path program 1 times [2021-10-28 22:51:48,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:48,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713140054] [2021-10-28 22:51:48,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:48,446 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:48,682 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:48,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:48,685 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713140054] [2021-10-28 22:51:48,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713140054] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:48,685 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:48,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-28 22:51:48,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682157731] [2021-10-28 22:51:48,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 22:51:48,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:48,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 22:51:48,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-10-28 22:51:48,693 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 145 [2021-10-28 22:51:48,695 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 134 transitions, 385 flow. Second operand has 10 states, 10 states have (on average 94.5) internal successors, (945), 10 states have internal predecessors, (945), 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 22:51:48,696 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:51:48,696 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 145 [2021-10-28 22:51:48,696 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:51:49,229 INFO L129 PetriNetUnfolder]: 472/1193 cut-off events. [2021-10-28 22:51:49,229 INFO L130 PetriNetUnfolder]: For 250/263 co-relation queries the response was YES. [2021-10-28 22:51:49,238 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2418 conditions, 1193 events. 472/1193 cut-off events. For 250/263 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 7631 event pairs, 311 based on Foata normal form. 13/1091 useless extension candidates. Maximal degree in co-relation 2186. Up to 586 conditions per place. [2021-10-28 22:51:49,250 INFO L132 encePairwiseOnDemand]: 132/145 looper letters, 43 selfloop transitions, 7 changer transitions 14/149 dead transitions. [2021-10-28 22:51:49,250 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 149 transitions, 544 flow [2021-10-28 22:51:49,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 22:51:49,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-10-28 22:51:49,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1154 transitions. [2021-10-28 22:51:49,257 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6632183908045977 [2021-10-28 22:51:49,258 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1154 transitions. [2021-10-28 22:51:49,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1154 transitions. [2021-10-28 22:51:49,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:51:49,259 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1154 transitions. [2021-10-28 22:51:49,263 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 96.16666666666667) internal successors, (1154), 12 states have internal predecessors, (1154), 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 22:51:49,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 145.0) internal successors, (1885), 13 states have internal predecessors, (1885), 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 22:51:49,270 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 145.0) internal successors, (1885), 13 states have internal predecessors, (1885), 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 22:51:49,270 INFO L186 Difference]: Start difference. First operand has 148 places, 134 transitions, 385 flow. Second operand 12 states and 1154 transitions. [2021-10-28 22:51:49,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 149 transitions, 544 flow [2021-10-28 22:51:49,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 149 transitions, 531 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-10-28 22:51:49,312 INFO L242 Difference]: Finished difference. Result has 156 places, 128 transitions, 352 flow [2021-10-28 22:51:49,312 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=352, PETRI_PLACES=156, PETRI_TRANSITIONS=128} [2021-10-28 22:51:49,313 INFO L334 CegarLoopForPetriNet]: 129 programPoint places, 27 predicate places. [2021-10-28 22:51:49,313 INFO L470 AbstractCegarLoop]: Abstraction has has 156 places, 128 transitions, 352 flow [2021-10-28 22:51:49,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 94.5) internal successors, (945), 10 states have internal predecessors, (945), 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 22:51:49,314 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:51:49,315 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] [2021-10-28 22:51:49,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 22:51:49,315 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-28 22:51:49,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:49,316 INFO L85 PathProgramCache]: Analyzing trace with hash -368870101, now seen corresponding path program 1 times [2021-10-28 22:51:49,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:49,317 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114871537] [2021-10-28 22:51:49,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:49,317 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:49,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:49,501 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 22:51:49,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:49,502 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114871537] [2021-10-28 22:51:49,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114871537] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 22:51:49,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [98388236] [2021-10-28 22:51:49,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:49,503 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 22:51:49,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0823a2ff-2cac-4f52-bfab-66a13944ae5c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:49,506 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0823a2ff-2cac-4f52-bfab-66a13944ae5c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 22:51:49,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0823a2ff-2cac-4f52-bfab-66a13944ae5c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 22:51:49,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:49,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 22:51:49,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:51:50,290 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 22:51:50,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [98388236] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 22:51:50,291 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 22:51:50,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 14 [2021-10-28 22:51:50,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896104447] [2021-10-28 22:51:50,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 22:51:50,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:50,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 22:51:50,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-10-28 22:51:50,298 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 145 [2021-10-28 22:51:50,302 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 128 transitions, 352 flow. Second operand has 14 states, 14 states have (on average 105.35714285714286) internal successors, (1475), 14 states have internal predecessors, (1475), 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 22:51:50,303 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:51:50,303 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 145 [2021-10-28 22:51:50,303 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:51:51,138 INFO L129 PetriNetUnfolder]: 948/1983 cut-off events. [2021-10-28 22:51:51,139 INFO L130 PetriNetUnfolder]: For 740/740 co-relation queries the response was YES. [2021-10-28 22:51:51,150 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4564 conditions, 1983 events. 948/1983 cut-off events. For 740/740 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 13742 event pairs, 263 based on Foata normal form. 5/1963 useless extension candidates. Maximal degree in co-relation 4459. Up to 465 conditions per place. [2021-10-28 22:51:51,207 INFO L132 encePairwiseOnDemand]: 133/145 looper letters, 73 selfloop transitions, 19 changer transitions 0/181 dead transitions. [2021-10-28 22:51:51,207 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 181 transitions, 715 flow [2021-10-28 22:51:51,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 22:51:51,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-28 22:51:51,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1423 transitions. [2021-10-28 22:51:51,213 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7549071618037135 [2021-10-28 22:51:51,214 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1423 transitions. [2021-10-28 22:51:51,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1423 transitions. [2021-10-28 22:51:51,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:51:51,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1423 transitions. [2021-10-28 22:51:51,220 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 109.46153846153847) internal successors, (1423), 13 states have internal predecessors, (1423), 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 22:51:51,225 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 145.0) internal successors, (2030), 14 states have internal predecessors, (2030), 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 22:51:51,227 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 145.0) internal successors, (2030), 14 states have internal predecessors, (2030), 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 22:51:51,227 INFO L186 Difference]: Start difference. First operand has 156 places, 128 transitions, 352 flow. Second operand 13 states and 1423 transitions. [2021-10-28 22:51:51,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 181 transitions, 715 flow [2021-10-28 22:51:51,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 181 transitions, 652 flow, removed 24 selfloop flow, removed 14 redundant places. [2021-10-28 22:51:51,240 INFO L242 Difference]: Finished difference. Result has 147 places, 141 transitions, 420 flow [2021-10-28 22:51:51,241 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=420, PETRI_PLACES=147, PETRI_TRANSITIONS=141} [2021-10-28 22:51:51,241 INFO L334 CegarLoopForPetriNet]: 129 programPoint places, 18 predicate places. [2021-10-28 22:51:51,242 INFO L470 AbstractCegarLoop]: Abstraction has has 147 places, 141 transitions, 420 flow [2021-10-28 22:51:51,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 105.35714285714286) internal successors, (1475), 14 states have internal predecessors, (1475), 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 22:51:51,243 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:51:51,243 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] [2021-10-28 22:51:51,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0823a2ff-2cac-4f52-bfab-66a13944ae5c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:51,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0823a2ff-2cac-4f52-bfab-66a13944ae5c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 22:51:51,466 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-28 22:51:51,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:51,467 INFO L85 PathProgramCache]: Analyzing trace with hash 577463083, now seen corresponding path program 2 times [2021-10-28 22:51:51,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:51,467 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012907120] [2021-10-28 22:51:51,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:51,467 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:51,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:51,618 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 22:51:51,618 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:51,624 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012907120] [2021-10-28 22:51:51,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012907120] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 22:51:51,625 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [316903756] [2021-10-28 22:51:51,625 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 22:51:51,625 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 22:51:51,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0823a2ff-2cac-4f52-bfab-66a13944ae5c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:51,627 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0823a2ff-2cac-4f52-bfab-66a13944ae5c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 22:51:51,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0823a2ff-2cac-4f52-bfab-66a13944ae5c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 22:51:51,782 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 22:51:51,783 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 22:51:51,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 22:51:51,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:51:52,336 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 22:51:52,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [316903756] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:52,337 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 22:51:52,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2021-10-28 22:51:52,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416249112] [2021-10-28 22:51:52,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 22:51:52,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:52,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 22:51:52,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-10-28 22:51:52,342 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 145 [2021-10-28 22:51:52,343 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 141 transitions, 420 flow. Second operand has 6 states, 6 states have (on average 104.5) internal successors, (627), 6 states have internal predecessors, (627), 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 22:51:52,343 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:51:52,343 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 145 [2021-10-28 22:51:52,344 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:51:52,930 INFO L129 PetriNetUnfolder]: 515/1279 cut-off events. [2021-10-28 22:51:52,931 INFO L130 PetriNetUnfolder]: For 466/495 co-relation queries the response was YES. [2021-10-28 22:51:52,940 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2930 conditions, 1279 events. 515/1279 cut-off events. For 466/495 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 8393 event pairs, 141 based on Foata normal form. 46/1153 useless extension candidates. Maximal degree in co-relation 2845. Up to 484 conditions per place. [2021-10-28 22:51:52,955 INFO L132 encePairwiseOnDemand]: 136/145 looper letters, 36 selfloop transitions, 14 changer transitions 0/149 dead transitions. [2021-10-28 22:51:52,955 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 149 transitions, 553 flow [2021-10-28 22:51:52,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 22:51:52,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-10-28 22:51:52,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 838 transitions. [2021-10-28 22:51:52,960 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7224137931034482 [2021-10-28 22:51:52,960 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 838 transitions. [2021-10-28 22:51:52,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 838 transitions. [2021-10-28 22:51:52,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:51:52,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 838 transitions. [2021-10-28 22:51:52,965 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 104.75) internal successors, (838), 8 states have internal predecessors, (838), 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 22:51:52,968 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 145.0) internal successors, (1305), 9 states have internal predecessors, (1305), 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 22:51:52,970 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 145.0) internal successors, (1305), 9 states have internal predecessors, (1305), 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 22:51:52,970 INFO L186 Difference]: Start difference. First operand has 147 places, 141 transitions, 420 flow. Second operand 8 states and 838 transitions. [2021-10-28 22:51:52,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 149 transitions, 553 flow [2021-10-28 22:51:52,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 149 transitions, 544 flow, removed 1 selfloop flow, removed 4 redundant places. [2021-10-28 22:51:52,979 INFO L242 Difference]: Finished difference. Result has 152 places, 144 transitions, 482 flow [2021-10-28 22:51:52,980 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=411, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=482, PETRI_PLACES=152, PETRI_TRANSITIONS=144} [2021-10-28 22:51:52,980 INFO L334 CegarLoopForPetriNet]: 129 programPoint places, 23 predicate places. [2021-10-28 22:51:52,981 INFO L470 AbstractCegarLoop]: Abstraction has has 152 places, 144 transitions, 482 flow [2021-10-28 22:51:52,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 104.5) internal successors, (627), 6 states have internal predecessors, (627), 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 22:51:52,982 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:51:52,982 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] [2021-10-28 22:51:53,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0823a2ff-2cac-4f52-bfab-66a13944ae5c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:53,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0823a2ff-2cac-4f52-bfab-66a13944ae5c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 22:51:53,198 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-28 22:51:53,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:53,199 INFO L85 PathProgramCache]: Analyzing trace with hash -936057519, now seen corresponding path program 1 times [2021-10-28 22:51:53,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:53,199 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164409579] [2021-10-28 22:51:53,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:53,199 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:53,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:53,340 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 22:51:53,340 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:53,340 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164409579] [2021-10-28 22:51:53,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164409579] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 22:51:53,341 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320990576] [2021-10-28 22:51:53,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:53,341 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 22:51:53,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0823a2ff-2cac-4f52-bfab-66a13944ae5c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:53,346 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0823a2ff-2cac-4f52-bfab-66a13944ae5c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 22:51:53,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0823a2ff-2cac-4f52-bfab-66a13944ae5c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-28 22:51:53,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:53,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 22:51:53,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:51:54,054 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 22:51:54,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320990576] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 22:51:54,055 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 22:51:54,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 10 [2021-10-28 22:51:54,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494629091] [2021-10-28 22:51:54,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 22:51:54,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:54,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 22:51:54,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-10-28 22:51:54,060 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 145 [2021-10-28 22:51:54,062 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 144 transitions, 482 flow. Second operand has 10 states, 10 states have (on average 114.6) internal successors, (1146), 10 states have internal predecessors, (1146), 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 22:51:54,063 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:51:54,063 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 145 [2021-10-28 22:51:54,063 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:51:54,329 INFO L129 PetriNetUnfolder]: 188/643 cut-off events. [2021-10-28 22:51:54,329 INFO L130 PetriNetUnfolder]: For 828/872 co-relation queries the response was YES. [2021-10-28 22:51:54,336 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1637 conditions, 643 events. 188/643 cut-off events. For 828/872 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3727 event pairs, 63 based on Foata normal form. 18/553 useless extension candidates. Maximal degree in co-relation 1552. Up to 189 conditions per place. [2021-10-28 22:51:54,344 INFO L132 encePairwiseOnDemand]: 137/145 looper letters, 40 selfloop transitions, 7 changer transitions 0/157 dead transitions. [2021-10-28 22:51:54,344 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 157 transitions, 645 flow [2021-10-28 22:51:54,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 22:51:54,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-10-28 22:51:54,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 931 transitions. [2021-10-28 22:51:54,350 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8025862068965517 [2021-10-28 22:51:54,350 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 931 transitions. [2021-10-28 22:51:54,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 931 transitions. [2021-10-28 22:51:54,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:51:54,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 931 transitions. [2021-10-28 22:51:54,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 116.375) internal successors, (931), 8 states have internal predecessors, (931), 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 22:51:54,359 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 145.0) internal successors, (1305), 9 states have internal predecessors, (1305), 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 22:51:54,360 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 145.0) internal successors, (1305), 9 states have internal predecessors, (1305), 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 22:51:54,360 INFO L186 Difference]: Start difference. First operand has 152 places, 144 transitions, 482 flow. Second operand 8 states and 931 transitions. [2021-10-28 22:51:54,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 157 transitions, 645 flow [2021-10-28 22:51:54,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 157 transitions, 618 flow, removed 3 selfloop flow, removed 6 redundant places. [2021-10-28 22:51:54,370 INFO L242 Difference]: Finished difference. Result has 154 places, 145 transitions, 482 flow [2021-10-28 22:51:54,370 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=460, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=482, PETRI_PLACES=154, PETRI_TRANSITIONS=145} [2021-10-28 22:51:54,371 INFO L334 CegarLoopForPetriNet]: 129 programPoint places, 25 predicate places. [2021-10-28 22:51:54,371 INFO L470 AbstractCegarLoop]: Abstraction has has 154 places, 145 transitions, 482 flow [2021-10-28 22:51:54,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 114.6) internal successors, (1146), 10 states have internal predecessors, (1146), 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 22:51:54,372 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:51:54,373 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, 1, 1, 1] [2021-10-28 22:51:54,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0823a2ff-2cac-4f52-bfab-66a13944ae5c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:54,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0823a2ff-2cac-4f52-bfab-66a13944ae5c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 22:51:54,578 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-28 22:51:54,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:54,579 INFO L85 PathProgramCache]: Analyzing trace with hash 2025549892, now seen corresponding path program 1 times [2021-10-28 22:51:54,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:54,579 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060056083] [2021-10-28 22:51:54,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:54,579 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:54,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:54,697 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 22:51:54,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:54,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060056083] [2021-10-28 22:51:54,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060056083] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:54,699 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:54,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 22:51:54,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693894945] [2021-10-28 22:51:54,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 22:51:54,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:54,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 22:51:54,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-28 22:51:54,706 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 145 [2021-10-28 22:51:54,707 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 145 transitions, 482 flow. Second operand has 6 states, 6 states have (on average 111.16666666666667) internal successors, (667), 6 states have internal predecessors, (667), 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 22:51:54,708 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:51:54,708 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 145 [2021-10-28 22:51:54,708 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:51:54,752 INFO L129 PetriNetUnfolder]: 0/40 cut-off events. [2021-10-28 22:51:54,753 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-10-28 22:51:54,753 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 40 events. 0/40 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 1/41 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2021-10-28 22:51:54,754 INFO L132 encePairwiseOnDemand]: 140/145 looper letters, 0 selfloop transitions, 0 changer transitions 40/40 dead transitions. [2021-10-28 22:51:54,754 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 40 transitions, 123 flow [2021-10-28 22:51:54,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 22:51:54,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-28 22:51:54,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 655 transitions. [2021-10-28 22:51:54,758 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7528735632183908 [2021-10-28 22:51:54,758 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 655 transitions. [2021-10-28 22:51:54,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 655 transitions. [2021-10-28 22:51:54,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:51:54,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 655 transitions. [2021-10-28 22:51:54,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 109.16666666666667) internal successors, (655), 6 states have internal predecessors, (655), 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 22:51:54,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 145.0) internal successors, (1015), 7 states have internal predecessors, (1015), 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 22:51:54,766 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 145.0) internal successors, (1015), 7 states have internal predecessors, (1015), 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 22:51:54,767 INFO L186 Difference]: Start difference. First operand has 154 places, 145 transitions, 482 flow. Second operand 6 states and 655 transitions. [2021-10-28 22:51:54,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 40 transitions, 123 flow [2021-10-28 22:51:54,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 40 transitions, 108 flow, removed 0 selfloop flow, removed 11 redundant places. [2021-10-28 22:51:54,769 INFO L242 Difference]: Finished difference. Result has 56 places, 0 transitions, 0 flow [2021-10-28 22:51:54,769 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=56, PETRI_TRANSITIONS=0} [2021-10-28 22:51:54,769 INFO L334 CegarLoopForPetriNet]: 129 programPoint places, -73 predicate places. [2021-10-28 22:51:54,770 INFO L470 AbstractCegarLoop]: Abstraction has has 56 places, 0 transitions, 0 flow [2021-10-28 22:51:54,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 111.16666666666667) internal successors, (667), 6 states have internal predecessors, (667), 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 22:51:54,773 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 22:51:54,774 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-28 22:51:54,775 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-28 22:51:54,775 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-28 22:51:54,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-28 22:51:54,780 INFO L731 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:51:54,783 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-28 22:51:54,784 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 22:51:54,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 10:51:54 BasicIcfg [2021-10-28 22:51:54,792 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 22:51:54,793 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 22:51:54,793 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 22:51:54,793 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 22:51:54,794 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:51:44" (3/4) ... [2021-10-28 22:51:54,798 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 22:51:54,808 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-28 22:51:54,809 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-28 22:51:54,809 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-10-28 22:51:54,821 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2021-10-28 22:51:54,821 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 22:51:54,822 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 22:51:54,822 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 22:51:54,877 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0823a2ff-2cac-4f52-bfab-66a13944ae5c/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 22:51:54,878 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 22:51:54,880 INFO L168 Benchmark]: Toolchain (without parser) took 11788.41 ms. Allocated memory was 109.1 MB in the beginning and 241.2 MB in the end (delta: 132.1 MB). Free memory was 70.2 MB in the beginning and 151.1 MB in the end (delta: -80.9 MB). Peak memory consumption was 50.2 MB. Max. memory is 16.1 GB. [2021-10-28 22:51:54,881 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 109.1 MB. Free memory is still 86.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:51:54,881 INFO L168 Benchmark]: CACSL2BoogieTranslator took 422.40 ms. Allocated memory is still 109.1 MB. Free memory was 70.0 MB in the beginning and 83.0 MB in the end (delta: -12.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 22:51:54,882 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.90 ms. Allocated memory is still 109.1 MB. Free memory was 83.0 MB in the beginning and 81.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:51:54,882 INFO L168 Benchmark]: Boogie Preprocessor took 79.85 ms. Allocated memory is still 109.1 MB. Free memory was 81.3 MB in the beginning and 79.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:51:54,883 INFO L168 Benchmark]: RCFGBuilder took 946.21 ms. Allocated memory is still 109.1 MB. Free memory was 79.7 MB in the beginning and 60.5 MB in the end (delta: 19.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-28 22:51:54,884 INFO L168 Benchmark]: TraceAbstraction took 10161.21 ms. Allocated memory was 109.1 MB in the beginning and 241.2 MB in the end (delta: 132.1 MB). Free memory was 59.9 MB in the beginning and 154.2 MB in the end (delta: -94.3 MB). Peak memory consumption was 40.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:51:54,885 INFO L168 Benchmark]: Witness Printer took 85.29 ms. Allocated memory is still 241.2 MB. Free memory was 154.2 MB in the beginning and 151.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:51:54,887 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 109.1 MB. Free memory is still 86.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 422.40 ms. Allocated memory is still 109.1 MB. Free memory was 70.0 MB in the beginning and 83.0 MB in the end (delta: -12.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 81.90 ms. Allocated memory is still 109.1 MB. Free memory was 83.0 MB in the beginning and 81.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 79.85 ms. Allocated memory is still 109.1 MB. Free memory was 81.3 MB in the beginning and 79.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 946.21 ms. Allocated memory is still 109.1 MB. Free memory was 79.7 MB in the beginning and 60.5 MB in the end (delta: 19.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10161.21 ms. Allocated memory was 109.1 MB in the beginning and 241.2 MB in the end (delta: 132.1 MB). Free memory was 59.9 MB in the beginning and 154.2 MB in the end (delta: -94.3 MB). Peak memory consumption was 40.1 MB. Max. memory is 16.1 GB. * Witness Printer took 85.29 ms. Allocated memory is still 241.2 MB. Free memory was 154.2 MB in the beginning and 151.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 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: 100]: 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, 163 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: 9.9s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 147 SDtfs, 701 SDslu, 405 SDs, 0 SdLazy, 1024 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 442 GetRequests, 331 SyntacticMatches, 2 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=482occurred in iteration=7, InterpolantAutomatonStates: 80, 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, 0.6s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 1256 NumberOfCodeBlocks, 1244 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1244 ConstructedInterpolants, 0 QuantifiedInterpolants, 3429 SizeOfPredicates, 15 NumberOfNonLiveVariables, 730 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 12 InterpolantComputations, 7 PerfectInterpolantSequences, 13/18 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 22:51:54,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0823a2ff-2cac-4f52-bfab-66a13944ae5c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...