./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-more-array-sum2.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_d8a367e0-450d-4a83-afd9-4f1add3f884c/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a367e0-450d-4a83-afd9-4f1add3f884c/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_d8a367e0-450d-4a83-afd9-4f1add3f884c/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a367e0-450d-4a83-afd9-4f1add3f884c/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a367e0-450d-4a83-afd9-4f1add3f884c/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_d8a367e0-450d-4a83-afd9-4f1add3f884c/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 9eb5d9094342cfaa74d8ea4903febd735be5757c093d69b0f8dbb2a26886fda6 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 22:52:31,055 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 22:52:31,058 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 22:52:31,110 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 22:52:31,111 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 22:52:31,116 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 22:52:31,118 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 22:52:31,122 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 22:52:31,125 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 22:52:31,130 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 22:52:31,132 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 22:52:31,134 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 22:52:31,134 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 22:52:31,137 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 22:52:31,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 22:52:31,144 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 22:52:31,146 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 22:52:31,148 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 22:52:31,150 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 22:52:31,158 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 22:52:31,160 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 22:52:31,161 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 22:52:31,165 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 22:52:31,166 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 22:52:31,175 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 22:52:31,176 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 22:52:31,176 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 22:52:31,179 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 22:52:31,179 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 22:52:31,181 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 22:52:31,181 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 22:52:31,182 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 22:52:31,184 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 22:52:31,186 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 22:52:31,187 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 22:52:31,188 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 22:52:31,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 22:52:31,189 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 22:52:31,189 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 22:52:31,190 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 22:52:31,191 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 22:52:31,192 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a367e0-450d-4a83-afd9-4f1add3f884c/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 22:52:31,233 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 22:52:31,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 22:52:31,234 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 22:52:31,235 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 22:52:31,236 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 22:52:31,236 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 22:52:31,237 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 22:52:31,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 22:52:31,237 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 22:52:31,237 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 22:52:31,238 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 22:52:31,239 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 22:52:31,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 22:52:31,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 22:52:31,239 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 22:52:31,239 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 22:52:31,240 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 22:52:31,240 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 22:52:31,240 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 22:52:31,240 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 22:52:31,241 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 22:52:31,241 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 22:52:31,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 22:52:31,241 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 22:52:31,242 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 22:52:31,242 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 22:52:31,242 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 22:52:31,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 22:52:31,242 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 22:52:31,244 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 22:52:31,244 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 22:52:31,244 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 22:52:31,254 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_d8a367e0-450d-4a83-afd9-4f1add3f884c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a367e0-450d-4a83-afd9-4f1add3f884c/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9eb5d9094342cfaa74d8ea4903febd735be5757c093d69b0f8dbb2a26886fda6 [2021-10-28 22:52:31,569 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 22:52:31,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 22:52:31,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 22:52:31,608 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 22:52:31,609 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 22:52:31,610 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a367e0-450d-4a83-afd9-4f1add3f884c/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c [2021-10-28 22:52:31,681 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a367e0-450d-4a83-afd9-4f1add3f884c/bin/uautomizer-GMMbpWq8iD/data/19aa1b515/a46ebba7ae0f4e3b9fe3a5824da1f8d8/FLAGbe1b52d98 [2021-10-28 22:52:32,149 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 22:52:32,150 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a367e0-450d-4a83-afd9-4f1add3f884c/sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c [2021-10-28 22:52:32,163 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a367e0-450d-4a83-afd9-4f1add3f884c/bin/uautomizer-GMMbpWq8iD/data/19aa1b515/a46ebba7ae0f4e3b9fe3a5824da1f8d8/FLAGbe1b52d98 [2021-10-28 22:52:32,537 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a367e0-450d-4a83-afd9-4f1add3f884c/bin/uautomizer-GMMbpWq8iD/data/19aa1b515/a46ebba7ae0f4e3b9fe3a5824da1f8d8 [2021-10-28 22:52:32,539 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 22:52:32,541 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 22:52:32,556 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 22:52:32,556 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 22:52:32,559 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 22:52:32,560 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:52:32" (1/1) ... [2021-10-28 22:52:32,561 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f970a54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:52:32, skipping insertion in model container [2021-10-28 22:52:32,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:52:32" (1/1) ... [2021-10-28 22:52:32,567 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 22:52:32,595 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 22:52:32,815 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_d8a367e0-450d-4a83-afd9-4f1add3f884c/sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c[2599,2612] [2021-10-28 22:52:32,825 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:52:32,833 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 22:52:32,857 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_d8a367e0-450d-4a83-afd9-4f1add3f884c/sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c[2599,2612] [2021-10-28 22:52:32,862 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:52:32,877 INFO L208 MainTranslator]: Completed translation [2021-10-28 22:52:32,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:52:32 WrapperNode [2021-10-28 22:52:32,877 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 22:52:32,878 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 22:52:32,879 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 22:52:32,879 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 22:52:32,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:52:32" (1/1) ... [2021-10-28 22:52:32,894 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:52:32" (1/1) ... [2021-10-28 22:52:32,925 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 22:52:32,925 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 22:52:32,925 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 22:52:32,926 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 22:52:32,934 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:52:32" (1/1) ... [2021-10-28 22:52:32,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:52:32" (1/1) ... [2021-10-28 22:52:32,938 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:52:32" (1/1) ... [2021-10-28 22:52:32,938 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:52:32" (1/1) ... [2021-10-28 22:52:32,950 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:52:32" (1/1) ... [2021-10-28 22:52:32,969 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:52:32" (1/1) ... [2021-10-28 22:52:32,971 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:52:32" (1/1) ... [2021-10-28 22:52:32,980 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 22:52:32,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 22:52:32,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 22:52:32,985 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 22:52:32,986 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:52:32" (1/1) ... [2021-10-28 22:52:32,996 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 22:52:33,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a367e0-450d-4a83-afd9-4f1add3f884c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:52:33,023 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a367e0-450d-4a83-afd9-4f1add3f884c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 22:52:33,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a367e0-450d-4a83-afd9-4f1add3f884c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 22:52:33,058 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-28 22:52:33,058 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-28 22:52:33,059 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-28 22:52:33,059 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-28 22:52:33,059 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-28 22:52:33,059 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-28 22:52:33,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 22:52:33,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 22:52:33,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 22:52:33,060 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-28 22:52:33,065 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-28 22:52:33,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 22:52:33,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 22:52:33,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 22:52:33,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 22:52:33,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 22:52:33,067 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 22:52:34,350 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 22:52:34,350 INFO L299 CfgBuilder]: Removed 61 assume(true) statements. [2021-10-28 22:52:34,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:52:34 BoogieIcfgContainer [2021-10-28 22:52:34,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 22:52:34,355 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 22:52:34,355 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 22:52:34,358 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 22:52:34,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 10:52:32" (1/3) ... [2021-10-28 22:52:34,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@165838ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:52:34, skipping insertion in model container [2021-10-28 22:52:34,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:52:32" (2/3) ... [2021-10-28 22:52:34,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@165838ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:52:34, skipping insertion in model container [2021-10-28 22:52:34,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:52:34" (3/3) ... [2021-10-28 22:52:34,362 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-array-sum2.wvr.c [2021-10-28 22:52:34,368 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-28 22:52:34,368 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 22:52:34,368 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 22:52:34,368 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-28 22:52:34,401 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,401 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,402 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,402 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,402 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,402 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,403 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,403 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,403 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,403 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,403 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,404 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,404 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,404 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,404 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,404 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,404 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,405 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,405 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,405 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,405 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,405 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,406 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,406 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,406 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,406 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,406 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,407 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,407 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,407 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,407 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,407 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,408 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,408 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,408 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,408 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,409 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,409 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,409 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,409 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,409 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,410 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,410 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,410 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,410 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,410 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,411 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,411 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,411 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,411 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,412 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,412 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,412 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,412 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,412 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,412 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,413 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,413 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,413 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,413 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,413 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,414 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,414 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,414 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,414 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,414 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,415 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,415 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,415 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,415 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,415 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,415 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,416 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,416 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,416 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,416 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,416 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,417 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,417 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,417 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,417 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,418 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,418 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,418 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,418 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,418 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,419 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,419 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,419 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,419 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,420 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,420 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,420 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,420 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,421 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,421 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,421 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,421 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,421 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,422 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,422 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,422 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,422 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,422 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,422 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,423 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,423 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,423 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,423 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,423 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,424 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,424 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,424 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,424 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,424 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,425 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,425 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,425 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,425 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,425 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,425 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,426 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,426 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,426 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,426 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,427 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,427 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,427 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,427 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,427 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,428 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,428 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,431 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,431 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,431 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,431 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,432 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,432 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,432 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,432 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,432 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,433 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,433 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,433 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,433 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,433 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,433 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,435 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,436 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,436 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,436 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,436 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,436 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,437 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,437 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,437 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,437 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,437 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,437 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,438 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,438 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,438 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,440 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,440 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,441 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,441 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,441 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,441 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,441 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,442 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,442 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,442 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,442 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,442 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,443 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,443 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,443 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:52:34,451 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-28 22:52:34,499 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 22:52:34,506 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 22:52:34,506 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-28 22:52:34,521 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 167 places, 173 transitions, 370 flow [2021-10-28 22:52:34,584 INFO L129 PetriNetUnfolder]: 16/170 cut-off events. [2021-10-28 22:52:34,587 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-28 22:52:34,592 INFO L84 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 170 events. 16/170 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 107 event pairs, 0 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 135. Up to 2 conditions per place. [2021-10-28 22:52:34,594 INFO L82 GeneralOperation]: Start removeDead. Operand has 167 places, 173 transitions, 370 flow [2021-10-28 22:52:34,605 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 154 places, 160 transitions, 338 flow [2021-10-28 22:52:34,674 INFO L129 PetriNetUnfolder]: 16/159 cut-off events. [2021-10-28 22:52:34,678 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-28 22:52:34,678 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:52:34,679 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, 1] [2021-10-28 22:52:34,680 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 22:52:34,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:52:34,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1983220053, now seen corresponding path program 1 times [2021-10-28 22:52:34,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:52:34,700 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219962458] [2021-10-28 22:52:34,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:52:34,701 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:52:34,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:52:34,916 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 22:52:34,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:52:34,917 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219962458] [2021-10-28 22:52:34,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219962458] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:52:34,918 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:52:34,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 22:52:34,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198791830] [2021-10-28 22:52:34,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 22:52:34,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:52:34,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 22:52:34,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 22:52:34,967 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 173 [2021-10-28 22:52:34,971 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 160 transitions, 338 flow. Second operand has 2 states, 2 states have (on average 162.5) internal successors, (325), 2 states have internal predecessors, (325), 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 22:52:34,972 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:52:34,972 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 173 [2021-10-28 22:52:34,973 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:52:35,011 INFO L129 PetriNetUnfolder]: 5/149 cut-off events. [2021-10-28 22:52:35,011 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-28 22:52:35,013 INFO L84 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 149 events. 5/149 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. 11/149 useless extension candidates. Maximal degree in co-relation 158. Up to 2 conditions per place. [2021-10-28 22:52:35,015 INFO L132 encePairwiseOnDemand]: 162/173 looper letters, 0 selfloop transitions, 0 changer transitions 6/149 dead transitions. [2021-10-28 22:52:35,015 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 149 transitions, 316 flow [2021-10-28 22:52:35,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 22:52:35,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-10-28 22:52:35,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 333 transitions. [2021-10-28 22:52:35,031 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9624277456647399 [2021-10-28 22:52:35,032 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 333 transitions. [2021-10-28 22:52:35,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 333 transitions. [2021-10-28 22:52:35,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:52:35,037 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 333 transitions. [2021-10-28 22:52:35,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 166.5) internal successors, (333), 2 states have internal predecessors, (333), 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 22:52:35,049 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 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 22:52:35,050 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 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 22:52:35,052 INFO L186 Difference]: Start difference. First operand has 154 places, 160 transitions, 338 flow. Second operand 2 states and 333 transitions. [2021-10-28 22:52:35,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 149 transitions, 316 flow [2021-10-28 22:52:35,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 149 transitions, 304 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-10-28 22:52:35,063 INFO L242 Difference]: Finished difference. Result has 149 places, 143 transitions, 292 flow [2021-10-28 22:52:35,066 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=292, PETRI_PLACES=149, PETRI_TRANSITIONS=143} [2021-10-28 22:52:35,066 INFO L334 CegarLoopForPetriNet]: 154 programPoint places, -5 predicate places. [2021-10-28 22:52:35,067 INFO L470 AbstractCegarLoop]: Abstraction has has 149 places, 143 transitions, 292 flow [2021-10-28 22:52:35,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 162.5) internal successors, (325), 2 states have internal predecessors, (325), 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 22:52:35,068 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:52:35,068 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, 1] [2021-10-28 22:52:35,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 22:52:35,068 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 22:52:35,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:52:35,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1053745654, now seen corresponding path program 1 times [2021-10-28 22:52:35,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:52:35,070 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2679719] [2021-10-28 22:52:35,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:52:35,070 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:52:35,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:52:35,416 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 22:52:35,416 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:52:35,416 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2679719] [2021-10-28 22:52:35,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2679719] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:52:35,417 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:52:35,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 22:52:35,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480149923] [2021-10-28 22:52:35,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 22:52:35,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:52:35,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 22:52:35,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 22:52:35,427 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 173 [2021-10-28 22:52:35,429 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 143 transitions, 292 flow. Second operand has 6 states, 6 states have (on average 130.33333333333334) internal successors, (782), 6 states have internal predecessors, (782), 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 22:52:35,429 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:52:35,429 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 173 [2021-10-28 22:52:35,429 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:52:35,597 INFO L129 PetriNetUnfolder]: 24/233 cut-off events. [2021-10-28 22:52:35,597 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 22:52:35,600 INFO L84 FinitePrefix]: Finished finitePrefix Result has 296 conditions, 233 events. 24/233 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 460 event pairs, 1 based on Foata normal form. 1/214 useless extension candidates. Maximal degree in co-relation 293. Up to 21 conditions per place. [2021-10-28 22:52:35,602 INFO L132 encePairwiseOnDemand]: 165/173 looper letters, 33 selfloop transitions, 6 changer transitions 3/156 dead transitions. [2021-10-28 22:52:35,603 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 156 transitions, 402 flow [2021-10-28 22:52:35,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 22:52:35,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-28 22:52:35,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 799 transitions. [2021-10-28 22:52:35,612 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7697495183044316 [2021-10-28 22:52:35,612 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 799 transitions. [2021-10-28 22:52:35,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 799 transitions. [2021-10-28 22:52:35,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:52:35,614 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 799 transitions. [2021-10-28 22:52:35,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 133.16666666666666) internal successors, (799), 6 states have internal predecessors, (799), 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 22:52:35,623 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 173.0) internal successors, (1211), 7 states have internal predecessors, (1211), 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 22:52:35,625 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 173.0) internal successors, (1211), 7 states have internal predecessors, (1211), 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 22:52:35,625 INFO L186 Difference]: Start difference. First operand has 149 places, 143 transitions, 292 flow. Second operand 6 states and 799 transitions. [2021-10-28 22:52:35,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 156 transitions, 402 flow [2021-10-28 22:52:35,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 156 transitions, 402 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-28 22:52:35,635 INFO L242 Difference]: Finished difference. Result has 151 places, 147 transitions, 328 flow [2021-10-28 22:52:35,636 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=328, PETRI_PLACES=151, PETRI_TRANSITIONS=147} [2021-10-28 22:52:35,637 INFO L334 CegarLoopForPetriNet]: 154 programPoint places, -3 predicate places. [2021-10-28 22:52:35,637 INFO L470 AbstractCegarLoop]: Abstraction has has 151 places, 147 transitions, 328 flow [2021-10-28 22:52:35,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 130.33333333333334) internal successors, (782), 6 states have internal predecessors, (782), 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 22:52:35,638 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:52:35,639 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, 1, 1, 1, 1, 1, 1] [2021-10-28 22:52:35,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 22:52:35,639 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 22:52:35,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:52:35,651 INFO L85 PathProgramCache]: Analyzing trace with hash 949006853, now seen corresponding path program 1 times [2021-10-28 22:52:35,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:52:35,651 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351511799] [2021-10-28 22:52:35,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:52:35,652 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:52:35,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:52:35,891 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 22:52:35,892 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:52:35,892 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351511799] [2021-10-28 22:52:35,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351511799] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:52:35,893 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:52:35,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 22:52:35,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607307756] [2021-10-28 22:52:35,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 22:52:35,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:52:35,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 22:52:35,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-28 22:52:35,908 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 173 [2021-10-28 22:52:35,910 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 147 transitions, 328 flow. Second operand has 7 states, 7 states have (on average 128.85714285714286) internal successors, (902), 7 states have internal predecessors, (902), 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 22:52:35,910 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:52:35,910 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 173 [2021-10-28 22:52:35,910 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:52:36,270 INFO L129 PetriNetUnfolder]: 131/767 cut-off events. [2021-10-28 22:52:36,270 INFO L130 PetriNetUnfolder]: For 1/4 co-relation queries the response was YES. [2021-10-28 22:52:36,276 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1102 conditions, 767 events. 131/767 cut-off events. For 1/4 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4280 event pairs, 38 based on Foata normal form. 0/655 useless extension candidates. Maximal degree in co-relation 1095. Up to 149 conditions per place. [2021-10-28 22:52:36,282 INFO L132 encePairwiseOnDemand]: 159/173 looper letters, 63 selfloop transitions, 18 changer transitions 0/190 dead transitions. [2021-10-28 22:52:36,283 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 190 transitions, 578 flow [2021-10-28 22:52:36,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 22:52:36,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-10-28 22:52:36,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1456 transitions. [2021-10-28 22:52:36,289 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7651077246452969 [2021-10-28 22:52:36,290 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1456 transitions. [2021-10-28 22:52:36,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1456 transitions. [2021-10-28 22:52:36,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:52:36,291 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1456 transitions. [2021-10-28 22:52:36,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 132.36363636363637) internal successors, (1456), 11 states have internal predecessors, (1456), 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 22:52:36,302 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 173.0) internal successors, (2076), 12 states have internal predecessors, (2076), 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 22:52:36,304 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 173.0) internal successors, (2076), 12 states have internal predecessors, (2076), 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 22:52:36,304 INFO L186 Difference]: Start difference. First operand has 151 places, 147 transitions, 328 flow. Second operand 11 states and 1456 transitions. [2021-10-28 22:52:36,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 190 transitions, 578 flow [2021-10-28 22:52:36,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 190 transitions, 574 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-10-28 22:52:36,315 INFO L242 Difference]: Finished difference. Result has 161 places, 157 transitions, 410 flow [2021-10-28 22:52:36,316 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=410, PETRI_PLACES=161, PETRI_TRANSITIONS=157} [2021-10-28 22:52:36,316 INFO L334 CegarLoopForPetriNet]: 154 programPoint places, 7 predicate places. [2021-10-28 22:52:36,317 INFO L470 AbstractCegarLoop]: Abstraction has has 161 places, 157 transitions, 410 flow [2021-10-28 22:52:36,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 128.85714285714286) internal successors, (902), 7 states have internal predecessors, (902), 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 22:52:36,319 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:52:36,319 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, 1, 1, 1, 1, 1, 1] [2021-10-28 22:52:36,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 22:52:36,320 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 22:52:36,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:52:36,322 INFO L85 PathProgramCache]: Analyzing trace with hash 144463319, now seen corresponding path program 1 times [2021-10-28 22:52:36,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:52:36,322 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468572387] [2021-10-28 22:52:36,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:52:36,324 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:52:36,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:52:36,602 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 22:52:36,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:52:36,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468572387] [2021-10-28 22:52:36,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468572387] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:52:36,603 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:52:36,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-28 22:52:36,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154995194] [2021-10-28 22:52:36,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 22:52:36,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:52:36,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 22:52:36,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-10-28 22:52:36,613 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 173 [2021-10-28 22:52:36,615 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 157 transitions, 410 flow. Second operand has 10 states, 10 states have (on average 100.0) internal successors, (1000), 10 states have internal predecessors, (1000), 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 22:52:36,615 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:52:36,615 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 173 [2021-10-28 22:52:36,615 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:52:37,499 INFO L129 PetriNetUnfolder]: 527/1488 cut-off events. [2021-10-28 22:52:37,499 INFO L130 PetriNetUnfolder]: For 385/421 co-relation queries the response was YES. [2021-10-28 22:52:37,506 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2757 conditions, 1488 events. 527/1488 cut-off events. For 385/421 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 9106 event pairs, 305 based on Foata normal form. 36/1299 useless extension candidates. Maximal degree in co-relation 2747. Up to 632 conditions per place. [2021-10-28 22:52:37,518 INFO L132 encePairwiseOnDemand]: 156/173 looper letters, 108 selfloop transitions, 24 changer transitions 0/220 dead transitions. [2021-10-28 22:52:37,518 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 220 transitions, 814 flow [2021-10-28 22:52:37,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-28 22:52:37,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-10-28 22:52:37,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1748 transitions. [2021-10-28 22:52:37,525 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5943556613396804 [2021-10-28 22:52:37,525 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1748 transitions. [2021-10-28 22:52:37,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1748 transitions. [2021-10-28 22:52:37,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:52:37,527 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1748 transitions. [2021-10-28 22:52:37,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 102.82352941176471) internal successors, (1748), 17 states have internal predecessors, (1748), 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 22:52:37,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 173.0) internal successors, (3114), 18 states have internal predecessors, (3114), 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 22:52:37,542 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 173.0) internal successors, (3114), 18 states have internal predecessors, (3114), 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 22:52:37,542 INFO L186 Difference]: Start difference. First operand has 161 places, 157 transitions, 410 flow. Second operand 17 states and 1748 transitions. [2021-10-28 22:52:37,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 220 transitions, 814 flow [2021-10-28 22:52:37,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 220 transitions, 809 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-28 22:52:37,550 INFO L242 Difference]: Finished difference. Result has 177 places, 165 transitions, 483 flow [2021-10-28 22:52:37,551 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=405, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=483, PETRI_PLACES=177, PETRI_TRANSITIONS=165} [2021-10-28 22:52:37,551 INFO L334 CegarLoopForPetriNet]: 154 programPoint places, 23 predicate places. [2021-10-28 22:52:37,551 INFO L470 AbstractCegarLoop]: Abstraction has has 177 places, 165 transitions, 483 flow [2021-10-28 22:52:37,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 100.0) internal successors, (1000), 10 states have internal predecessors, (1000), 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 22:52:37,552 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:52:37,552 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, 1, 1, 1, 1, 1, 1] [2021-10-28 22:52:37,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 22:52:37,553 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 22:52:37,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:52:37,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1820746403, now seen corresponding path program 1 times [2021-10-28 22:52:37,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:52:37,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016662322] [2021-10-28 22:52:37,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:52:37,554 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:52:37,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:52:37,803 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 22:52:37,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:52:37,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016662322] [2021-10-28 22:52:37,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016662322] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:52:37,804 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:52:37,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-28 22:52:37,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447935315] [2021-10-28 22:52:37,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 22:52:37,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:52:37,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 22:52:37,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-10-28 22:52:37,809 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 173 [2021-10-28 22:52:37,810 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 165 transitions, 483 flow. Second operand has 10 states, 10 states have (on average 100.9) internal successors, (1009), 10 states have internal predecessors, (1009), 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 22:52:37,810 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:52:37,810 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 173 [2021-10-28 22:52:37,811 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:52:38,252 INFO L129 PetriNetUnfolder]: 393/945 cut-off events. [2021-10-28 22:52:38,252 INFO L130 PetriNetUnfolder]: For 580/580 co-relation queries the response was YES. [2021-10-28 22:52:38,257 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2124 conditions, 945 events. 393/945 cut-off events. For 580/580 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 4743 event pairs, 197 based on Foata normal form. 2/843 useless extension candidates. Maximal degree in co-relation 2112. Up to 490 conditions per place. [2021-10-28 22:52:38,266 INFO L132 encePairwiseOnDemand]: 157/173 looper letters, 61 selfloop transitions, 11 changer transitions 26/185 dead transitions. [2021-10-28 22:52:38,266 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 185 transitions, 716 flow [2021-10-28 22:52:38,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 22:52:38,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-28 22:52:38,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 959 transitions. [2021-10-28 22:52:38,270 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6159280667951188 [2021-10-28 22:52:38,270 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 959 transitions. [2021-10-28 22:52:38,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 959 transitions. [2021-10-28 22:52:38,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:52:38,272 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 959 transitions. [2021-10-28 22:52:38,275 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 106.55555555555556) internal successors, (959), 9 states have internal predecessors, (959), 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 22:52:38,278 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 173.0) internal successors, (1730), 10 states have internal predecessors, (1730), 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 22:52:38,279 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 173.0) internal successors, (1730), 10 states have internal predecessors, (1730), 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 22:52:38,279 INFO L186 Difference]: Start difference. First operand has 177 places, 165 transitions, 483 flow. Second operand 9 states and 959 transitions. [2021-10-28 22:52:38,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 185 transitions, 716 flow [2021-10-28 22:52:38,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 185 transitions, 671 flow, removed 10 selfloop flow, removed 11 redundant places. [2021-10-28 22:52:38,290 INFO L242 Difference]: Finished difference. Result has 168 places, 149 transitions, 392 flow [2021-10-28 22:52:38,290 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=417, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=392, PETRI_PLACES=168, PETRI_TRANSITIONS=149} [2021-10-28 22:52:38,291 INFO L334 CegarLoopForPetriNet]: 154 programPoint places, 14 predicate places. [2021-10-28 22:52:38,291 INFO L470 AbstractCegarLoop]: Abstraction has has 168 places, 149 transitions, 392 flow [2021-10-28 22:52:38,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 100.9) internal successors, (1009), 10 states have internal predecessors, (1009), 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 22:52:38,292 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:52:38,294 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:52:38,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 22:52:38,295 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 22:52:38,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:52:38,296 INFO L85 PathProgramCache]: Analyzing trace with hash 9452670, now seen corresponding path program 1 times [2021-10-28 22:52:38,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:52:38,296 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901184657] [2021-10-28 22:52:38,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:52:38,297 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:52:38,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:52:38,493 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 22:52:38,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:52:38,493 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901184657] [2021-10-28 22:52:38,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901184657] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 22:52:38,494 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [722837237] [2021-10-28 22:52:38,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:52:38,494 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 22:52:38,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a367e0-450d-4a83-afd9-4f1add3f884c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:52:38,497 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a367e0-450d-4a83-afd9-4f1add3f884c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 22:52:38,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a367e0-450d-4a83-afd9-4f1add3f884c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 22:52:38,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:52:38,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 22:52:38,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:52:39,415 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 22:52:39,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [722837237] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 22:52:39,417 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 22:52:39,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 14 [2021-10-28 22:52:39,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914618609] [2021-10-28 22:52:39,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 22:52:39,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:52:39,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 22:52:39,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-10-28 22:52:39,422 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 173 [2021-10-28 22:52:39,425 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 149 transitions, 392 flow. Second operand has 14 states, 14 states have (on average 119.21428571428571) internal successors, (1669), 14 states have internal predecessors, (1669), 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 22:52:39,426 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:52:39,426 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 173 [2021-10-28 22:52:39,426 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:52:40,204 INFO L129 PetriNetUnfolder]: 949/1874 cut-off events. [2021-10-28 22:52:40,204 INFO L130 PetriNetUnfolder]: For 138/138 co-relation queries the response was YES. [2021-10-28 22:52:40,212 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3820 conditions, 1874 events. 949/1874 cut-off events. For 138/138 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 12180 event pairs, 242 based on Foata normal form. 5/1551 useless extension candidates. Maximal degree in co-relation 3812. Up to 476 conditions per place. [2021-10-28 22:52:40,229 INFO L132 encePairwiseOnDemand]: 157/173 looper letters, 82 selfloop transitions, 23 changer transitions 0/205 dead transitions. [2021-10-28 22:52:40,229 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 205 transitions, 744 flow [2021-10-28 22:52:40,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 22:52:40,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-10-28 22:52:40,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1724 transitions. [2021-10-28 22:52:40,238 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7118084227910817 [2021-10-28 22:52:40,238 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1724 transitions. [2021-10-28 22:52:40,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1724 transitions. [2021-10-28 22:52:40,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:52:40,240 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1724 transitions. [2021-10-28 22:52:40,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 123.14285714285714) internal successors, (1724), 14 states have internal predecessors, (1724), 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 22:52:40,255 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 173.0) internal successors, (2595), 15 states have internal predecessors, (2595), 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 22:52:40,256 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 173.0) internal successors, (2595), 15 states have internal predecessors, (2595), 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 22:52:40,256 INFO L186 Difference]: Start difference. First operand has 168 places, 149 transitions, 392 flow. Second operand 14 states and 1724 transitions. [2021-10-28 22:52:40,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 205 transitions, 744 flow [2021-10-28 22:52:40,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 205 transitions, 695 flow, removed 4 selfloop flow, removed 9 redundant places. [2021-10-28 22:52:40,265 INFO L242 Difference]: Finished difference. Result has 168 places, 162 transitions, 452 flow [2021-10-28 22:52:40,266 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=345, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=452, PETRI_PLACES=168, PETRI_TRANSITIONS=162} [2021-10-28 22:52:40,266 INFO L334 CegarLoopForPetriNet]: 154 programPoint places, 14 predicate places. [2021-10-28 22:52:40,266 INFO L470 AbstractCegarLoop]: Abstraction has has 168 places, 162 transitions, 452 flow [2021-10-28 22:52:40,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 119.21428571428571) internal successors, (1669), 14 states have internal predecessors, (1669), 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 22:52:40,267 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:52:40,267 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:52:40,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a367e0-450d-4a83-afd9-4f1add3f884c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 22:52:40,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a367e0-450d-4a83-afd9-4f1add3f884c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-10-28 22:52:40,490 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 22:52:40,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:52:40,491 INFO L85 PathProgramCache]: Analyzing trace with hash 209694778, now seen corresponding path program 2 times [2021-10-28 22:52:40,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:52:40,491 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118145338] [2021-10-28 22:52:40,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:52:40,492 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:52:40,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:52:40,628 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 22:52:40,628 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:52:40,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118145338] [2021-10-28 22:52:40,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118145338] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 22:52:40,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581613508] [2021-10-28 22:52:40,629 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 22:52:40,629 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 22:52:40,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a367e0-450d-4a83-afd9-4f1add3f884c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:52:40,630 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a367e0-450d-4a83-afd9-4f1add3f884c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 22:52:40,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a367e0-450d-4a83-afd9-4f1add3f884c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 22:52:40,797 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 22:52:40,798 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 22:52:40,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 22:52:40,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:52:41,445 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-28 22:52:41,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581613508] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:52:41,446 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 22:52:41,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2021-10-28 22:52:41,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801506146] [2021-10-28 22:52:41,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 22:52:41,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:52:41,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 22:52:41,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-10-28 22:52:41,449 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 173 [2021-10-28 22:52:41,450 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 162 transitions, 452 flow. Second operand has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 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 22:52:41,451 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:52:41,451 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 173 [2021-10-28 22:52:41,451 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:52:41,847 INFO L129 PetriNetUnfolder]: 529/1356 cut-off events. [2021-10-28 22:52:41,848 INFO L130 PetriNetUnfolder]: For 462/494 co-relation queries the response was YES. [2021-10-28 22:52:41,856 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3016 conditions, 1356 events. 529/1356 cut-off events. For 462/494 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 8790 event pairs, 161 based on Foata normal form. 44/1216 useless extension candidates. Maximal degree in co-relation 3004. Up to 488 conditions per place. [2021-10-28 22:52:41,867 INFO L132 encePairwiseOnDemand]: 164/173 looper letters, 45 selfloop transitions, 14 changer transitions 0/170 dead transitions. [2021-10-28 22:52:41,868 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 170 transitions, 603 flow [2021-10-28 22:52:41,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 22:52:41,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-10-28 22:52:41,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 959 transitions. [2021-10-28 22:52:41,872 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6929190751445087 [2021-10-28 22:52:41,872 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 959 transitions. [2021-10-28 22:52:41,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 959 transitions. [2021-10-28 22:52:41,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:52:41,873 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 959 transitions. [2021-10-28 22:52:41,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 119.875) internal successors, (959), 8 states have internal predecessors, (959), 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 22:52:41,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 173.0) internal successors, (1557), 9 states have internal predecessors, (1557), 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 22:52:41,928 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 173.0) internal successors, (1557), 9 states have internal predecessors, (1557), 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 22:52:41,928 INFO L186 Difference]: Start difference. First operand has 168 places, 162 transitions, 452 flow. Second operand 8 states and 959 transitions. [2021-10-28 22:52:41,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 170 transitions, 603 flow [2021-10-28 22:52:41,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 170 transitions, 590 flow, removed 1 selfloop flow, removed 5 redundant places. [2021-10-28 22:52:41,935 INFO L242 Difference]: Finished difference. Result has 172 places, 165 transitions, 510 flow [2021-10-28 22:52:41,935 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=439, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=510, PETRI_PLACES=172, PETRI_TRANSITIONS=165} [2021-10-28 22:52:41,935 INFO L334 CegarLoopForPetriNet]: 154 programPoint places, 18 predicate places. [2021-10-28 22:52:41,936 INFO L470 AbstractCegarLoop]: Abstraction has has 172 places, 165 transitions, 510 flow [2021-10-28 22:52:41,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 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 22:52:41,936 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:52:41,936 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:52:41,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a367e0-450d-4a83-afd9-4f1add3f884c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-28 22:52:42,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a367e0-450d-4a83-afd9-4f1add3f884c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 22:52:42,148 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 22:52:42,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:52:42,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1346492556, now seen corresponding path program 1 times [2021-10-28 22:52:42,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:52:42,149 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831441004] [2021-10-28 22:52:42,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:52:42,149 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:52:42,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:52:42,246 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 22:52:42,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:52:42,247 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831441004] [2021-10-28 22:52:42,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831441004] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 22:52:42,247 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122300744] [2021-10-28 22:52:42,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:52:42,248 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 22:52:42,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a367e0-450d-4a83-afd9-4f1add3f884c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:52:42,249 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a367e0-450d-4a83-afd9-4f1add3f884c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 22:52:42,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a367e0-450d-4a83-afd9-4f1add3f884c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-28 22:52:42,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:52:42,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 22:52:42,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:52:42,852 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 22:52:42,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2122300744] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 22:52:42,853 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 22:52:42,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 10 [2021-10-28 22:52:42,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892998507] [2021-10-28 22:52:42,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 22:52:42,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:52:42,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 22:52:42,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-10-28 22:52:42,856 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 173 [2021-10-28 22:52:42,858 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 165 transitions, 510 flow. Second operand has 10 states, 10 states have (on average 128.8) internal successors, (1288), 10 states have internal predecessors, (1288), 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 22:52:42,859 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:52:42,859 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 173 [2021-10-28 22:52:42,859 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:52:43,149 INFO L129 PetriNetUnfolder]: 177/634 cut-off events. [2021-10-28 22:52:43,149 INFO L130 PetriNetUnfolder]: For 638/700 co-relation queries the response was YES. [2021-10-28 22:52:43,153 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1511 conditions, 634 events. 177/634 cut-off events. For 638/700 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3152 event pairs, 37 based on Foata normal form. 11/561 useless extension candidates. Maximal degree in co-relation 1497. Up to 148 conditions per place. [2021-10-28 22:52:43,159 INFO L132 encePairwiseOnDemand]: 161/173 looper letters, 52 selfloop transitions, 11 changer transitions 0/181 dead transitions. [2021-10-28 22:52:43,159 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 181 transitions, 711 flow [2021-10-28 22:52:43,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 22:52:43,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-28 22:52:43,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1176 transitions. [2021-10-28 22:52:43,164 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7552986512524085 [2021-10-28 22:52:43,164 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1176 transitions. [2021-10-28 22:52:43,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1176 transitions. [2021-10-28 22:52:43,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:52:43,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1176 transitions. [2021-10-28 22:52:43,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 130.66666666666666) internal successors, (1176), 9 states have internal predecessors, (1176), 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 22:52:43,172 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 173.0) internal successors, (1730), 10 states have internal predecessors, (1730), 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 22:52:43,173 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 173.0) internal successors, (1730), 10 states have internal predecessors, (1730), 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 22:52:43,174 INFO L186 Difference]: Start difference. First operand has 172 places, 165 transitions, 510 flow. Second operand 9 states and 1176 transitions. [2021-10-28 22:52:43,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 181 transitions, 711 flow [2021-10-28 22:52:43,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 181 transitions, 686 flow, removed 2 selfloop flow, removed 6 redundant places. [2021-10-28 22:52:43,180 INFO L242 Difference]: Finished difference. Result has 175 places, 166 transitions, 520 flow [2021-10-28 22:52:43,181 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=520, PETRI_PLACES=175, PETRI_TRANSITIONS=166} [2021-10-28 22:52:43,181 INFO L334 CegarLoopForPetriNet]: 154 programPoint places, 21 predicate places. [2021-10-28 22:52:43,181 INFO L470 AbstractCegarLoop]: Abstraction has has 175 places, 166 transitions, 520 flow [2021-10-28 22:52:43,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.8) internal successors, (1288), 10 states have internal predecessors, (1288), 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 22:52:43,182 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:52:43,183 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, 1, 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 22:52:43,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a367e0-450d-4a83-afd9-4f1add3f884c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-28 22:52:43,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a367e0-450d-4a83-afd9-4f1add3f884c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 22:52:43,408 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 22:52:43,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:52:43,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1923660667, now seen corresponding path program 1 times [2021-10-28 22:52:43,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:52:43,409 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255825622] [2021-10-28 22:52:43,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:52:43,409 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:52:43,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:52:43,504 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-28 22:52:43,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:52:43,504 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255825622] [2021-10-28 22:52:43,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255825622] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:52:43,505 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:52:43,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 22:52:43,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295931385] [2021-10-28 22:52:43,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 22:52:43,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:52:43,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 22:52:43,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-28 22:52:43,508 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 173 [2021-10-28 22:52:43,509 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 166 transitions, 520 flow. Second operand has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 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 22:52:43,509 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:52:43,509 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 173 [2021-10-28 22:52:43,509 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:52:43,536 INFO L129 PetriNetUnfolder]: 0/40 cut-off events. [2021-10-28 22:52:43,536 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-10-28 22:52:43,536 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 40 events. 0/40 cut-off events. For 6/6 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 22:52:43,536 INFO L132 encePairwiseOnDemand]: 168/173 looper letters, 0 selfloop transitions, 0 changer transitions 40/40 dead transitions. [2021-10-28 22:52:43,537 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 40 transitions, 118 flow [2021-10-28 22:52:43,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 22:52:43,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-28 22:52:43,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 691 transitions. [2021-10-28 22:52:43,540 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6657032755298651 [2021-10-28 22:52:43,540 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 691 transitions. [2021-10-28 22:52:43,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 691 transitions. [2021-10-28 22:52:43,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:52:43,541 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 691 transitions. [2021-10-28 22:52:43,543 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 115.16666666666667) internal successors, (691), 6 states have internal predecessors, (691), 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 22:52:43,545 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 173.0) internal successors, (1211), 7 states have internal predecessors, (1211), 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 22:52:43,546 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 173.0) internal successors, (1211), 7 states have internal predecessors, (1211), 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 22:52:43,546 INFO L186 Difference]: Start difference. First operand has 175 places, 166 transitions, 520 flow. Second operand 6 states and 691 transitions. [2021-10-28 22:52:43,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 40 transitions, 118 flow [2021-10-28 22:52:43,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 40 transitions, 107 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-10-28 22:52:43,547 INFO L242 Difference]: Finished difference. Result has 56 places, 0 transitions, 0 flow [2021-10-28 22:52:43,548 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=83, 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 22:52:43,548 INFO L334 CegarLoopForPetriNet]: 154 programPoint places, -98 predicate places. [2021-10-28 22:52:43,548 INFO L470 AbstractCegarLoop]: Abstraction has has 56 places, 0 transitions, 0 flow [2021-10-28 22:52:43,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 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 22:52:43,551 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 22:52:43,551 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-28 22:52:43,552 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-28 22:52:43,552 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-28 22:52:43,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-28 22:52:43,555 INFO L731 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:52:43,557 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-28 22:52:43,557 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 22:52:43,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 10:52:43 BasicIcfg [2021-10-28 22:52:43,562 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 22:52:43,562 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 22:52:43,563 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 22:52:43,563 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 22:52:43,563 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:52:34" (3/4) ... [2021-10-28 22:52:43,566 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 22:52:43,572 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-28 22:52:43,573 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-28 22:52:43,573 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-10-28 22:52:43,581 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2021-10-28 22:52:43,581 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 22:52:43,582 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 22:52:43,582 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 22:52:43,637 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a367e0-450d-4a83-afd9-4f1add3f884c/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 22:52:43,637 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 22:52:43,639 INFO L168 Benchmark]: Toolchain (without parser) took 11096.77 ms. Allocated memory was 123.7 MB in the beginning and 207.6 MB in the end (delta: 83.9 MB). Free memory was 81.7 MB in the beginning and 85.5 MB in the end (delta: -3.7 MB). Peak memory consumption was 80.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:52:43,639 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 123.7 MB. Free memory is still 98.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:52:43,640 INFO L168 Benchmark]: CACSL2BoogieTranslator took 321.67 ms. Allocated memory is still 123.7 MB. Free memory was 81.5 MB in the beginning and 97.3 MB in the end (delta: -15.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 22:52:43,640 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.37 ms. Allocated memory is still 123.7 MB. Free memory was 97.3 MB in the beginning and 94.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:52:43,641 INFO L168 Benchmark]: Boogie Preprocessor took 58.73 ms. Allocated memory is still 123.7 MB. Free memory was 94.7 MB in the beginning and 93.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:52:43,641 INFO L168 Benchmark]: RCFGBuilder took 1368.33 ms. Allocated memory is still 123.7 MB. Free memory was 92.6 MB in the beginning and 91.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 50.5 MB. Max. memory is 16.1 GB. [2021-10-28 22:52:43,641 INFO L168 Benchmark]: TraceAbstraction took 9207.00 ms. Allocated memory was 123.7 MB in the beginning and 207.6 MB in the end (delta: 83.9 MB). Free memory was 90.3 MB in the beginning and 89.7 MB in the end (delta: 652.6 kB). Peak memory consumption was 86.5 MB. Max. memory is 16.1 GB. [2021-10-28 22:52:43,642 INFO L168 Benchmark]: Witness Printer took 74.68 ms. Allocated memory is still 207.6 MB. Free memory was 89.7 MB in the beginning and 85.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 22:52:43,644 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 123.7 MB. Free memory is still 98.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 321.67 ms. Allocated memory is still 123.7 MB. Free memory was 81.5 MB in the beginning and 97.3 MB in the end (delta: -15.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.37 ms. Allocated memory is still 123.7 MB. Free memory was 97.3 MB in the beginning and 94.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.73 ms. Allocated memory is still 123.7 MB. Free memory was 94.7 MB in the beginning and 93.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1368.33 ms. Allocated memory is still 123.7 MB. Free memory was 92.6 MB in the beginning and 91.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 50.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9207.00 ms. Allocated memory was 123.7 MB in the beginning and 207.6 MB in the end (delta: 83.9 MB). Free memory was 90.3 MB in the beginning and 89.7 MB in the end (delta: 652.6 kB). Peak memory consumption was 86.5 MB. Max. memory is 16.1 GB. * Witness Printer took 74.68 ms. Allocated memory is still 207.6 MB. Free memory was 89.7 MB in the beginning and 85.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 97]: 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, 188 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: 9.0s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 190 SDtfs, 1047 SDslu, 499 SDs, 0 SdLazy, 1204 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 518 GetRequests, 406 SyntacticMatches, 2 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=520occurred in iteration=8, InterpolantAutomatonStates: 82, 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, 0.5s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 1521 NumberOfCodeBlocks, 1502 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1509 ConstructedInterpolants, 0 QuantifiedInterpolants, 3679 SizeOfPredicates, 15 NumberOfNonLiveVariables, 931 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 12 InterpolantComputations, 7 PerfectInterpolantSequences, 20/25 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 22:52:43,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a367e0-450d-4a83-afd9-4f1add3f884c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...