./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-more-sum-array-hom.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-sum-array-hom.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8 --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 0307f20ae0363cc6fed70ae0937c5000167639ab486b68a523e3313ccdd28e28 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:27:30,347 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:27:30,349 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:27:30,377 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:27:30,377 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:27:30,378 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:27:30,379 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:27:30,381 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:27:30,386 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:27:30,387 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:27:30,388 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:27:30,389 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:27:30,389 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:27:30,390 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:27:30,392 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:27:30,393 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:27:30,393 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:27:30,394 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:27:30,396 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:27:30,398 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:27:30,403 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:27:30,408 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:27:30,411 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:27:30,412 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:27:30,415 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:27:30,415 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:27:30,416 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:27:30,417 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:27:30,417 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:27:30,418 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:27:30,418 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:27:30,419 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:27:30,420 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:27:30,420 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:27:30,421 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:27:30,422 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:27:30,427 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:27:30,428 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:27:30,429 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:27:30,429 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:27:30,430 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:27:30,431 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 11:27:30,472 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:27:30,472 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:27:30,473 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:27:30,473 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:27:30,474 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:27:30,474 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:27:30,474 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:27:30,474 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:27:30,475 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:27:30,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:27:30,475 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:27:30,475 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:27:30,475 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:27:30,476 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:27:30,476 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:27:30,476 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:27:30,476 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:27:30,476 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:27:30,476 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:27:30,477 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:27:30,477 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:27:30,477 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:27:30,483 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:27:30,484 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:27:30,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:27:30,484 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:27:30,484 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:27:30,484 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:27:30,485 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:27:30,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:27:30,485 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:27:30,485 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:27:30,485 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:27:30,486 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_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0307f20ae0363cc6fed70ae0937c5000167639ab486b68a523e3313ccdd28e28 [2022-11-16 11:27:30,764 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:27:30,798 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:27:30,801 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:27:30,803 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:27:30,804 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:27:30,805 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/popl20-more-sum-array-hom.wvr.c [2022-11-16 11:27:30,888 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/data/02ed65536/e25538aeea0e45599852768730e6bef0/FLAGb6232dfee [2022-11-16 11:27:31,447 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:27:31,448 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/sv-benchmarks/c/weaver/popl20-more-sum-array-hom.wvr.c [2022-11-16 11:27:31,456 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/data/02ed65536/e25538aeea0e45599852768730e6bef0/FLAGb6232dfee [2022-11-16 11:27:31,794 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/data/02ed65536/e25538aeea0e45599852768730e6bef0 [2022-11-16 11:27:31,797 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:27:31,799 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:27:31,803 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:27:31,804 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:27:31,807 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:27:31,808 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:27:31" (1/1) ... [2022-11-16 11:27:31,809 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b25d0d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:31, skipping insertion in model container [2022-11-16 11:27:31,810 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:27:31" (1/1) ... [2022-11-16 11:27:31,817 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:27:31,843 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:27:32,091 WARN L229 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_342ec328-fa59-4ab4-89eb-2d4dd3719588/sv-benchmarks/c/weaver/popl20-more-sum-array-hom.wvr.c[2396,2409] [2022-11-16 11:27:32,099 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:27:32,109 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:27:32,131 WARN L229 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_342ec328-fa59-4ab4-89eb-2d4dd3719588/sv-benchmarks/c/weaver/popl20-more-sum-array-hom.wvr.c[2396,2409] [2022-11-16 11:27:32,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:27:32,148 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:27:32,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:32 WrapperNode [2022-11-16 11:27:32,149 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:27:32,150 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:27:32,150 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:27:32,150 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:27:32,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:32" (1/1) ... [2022-11-16 11:27:32,165 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:32" (1/1) ... [2022-11-16 11:27:32,186 INFO L138 Inliner]: procedures = 25, calls = 34, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 102 [2022-11-16 11:27:32,187 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:27:32,188 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:27:32,188 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:27:32,188 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:27:32,197 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:32" (1/1) ... [2022-11-16 11:27:32,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:32" (1/1) ... [2022-11-16 11:27:32,201 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:32" (1/1) ... [2022-11-16 11:27:32,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:32" (1/1) ... [2022-11-16 11:27:32,208 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:32" (1/1) ... [2022-11-16 11:27:32,212 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:32" (1/1) ... [2022-11-16 11:27:32,214 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:32" (1/1) ... [2022-11-16 11:27:32,215 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:32" (1/1) ... [2022-11-16 11:27:32,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:27:32,219 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:27:32,219 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:27:32,219 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:27:32,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:32" (1/1) ... [2022-11-16 11:27:32,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:27:32,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:27:32,253 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:27:32,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:27:32,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:27:32,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:27:32,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:27:32,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:27:32,314 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 11:27:32,315 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 11:27:32,316 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 11:27:32,317 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 11:27:32,318 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 11:27:32,318 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 11:27:32,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:27:32,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:27:32,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:27:32,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:27:32,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:27:32,321 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:27:32,487 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:27:32,489 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:27:32,815 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:27:32,826 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:27:32,827 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-16 11:27:32,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:27:32 BoogieIcfgContainer [2022-11-16 11:27:32,829 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:27:32,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:27:32,832 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:27:32,843 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:27:32,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:27:31" (1/3) ... [2022-11-16 11:27:32,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69386af0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:27:32, skipping insertion in model container [2022-11-16 11:27:32,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:32" (2/3) ... [2022-11-16 11:27:32,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69386af0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:27:32, skipping insertion in model container [2022-11-16 11:27:32,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:27:32" (3/3) ... [2022-11-16 11:27:32,846 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-sum-array-hom.wvr.c [2022-11-16 11:27:32,871 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:27:32,882 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:27:32,882 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:27:32,883 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:27:33,008 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-16 11:27:33,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 158 places, 160 transitions, 344 flow [2022-11-16 11:27:33,182 INFO L130 PetriNetUnfolder]: 12/157 cut-off events. [2022-11-16 11:27:33,182 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 11:27:33,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 157 events. 12/157 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 104 event pairs, 0 based on Foata normal form. 0/144 useless extension candidates. Maximal degree in co-relation 117. Up to 2 conditions per place. [2022-11-16 11:27:33,189 INFO L82 GeneralOperation]: Start removeDead. Operand has 158 places, 160 transitions, 344 flow [2022-11-16 11:27:33,195 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 144 places, 146 transitions, 310 flow [2022-11-16 11:27:33,207 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:27:33,214 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2fff5179, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:27:33,215 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-16 11:27:33,291 INFO L130 PetriNetUnfolder]: 12/145 cut-off events. [2022-11-16 11:27:33,291 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 11:27:33,291 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:33,292 INFO L209 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] [2022-11-16 11:27:33,293 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-16 11:27:33,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:33,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1111696631, now seen corresponding path program 1 times [2022-11-16 11:27:33,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:33,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775066376] [2022-11-16 11:27:33,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:33,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:33,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:33,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:33,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:33,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775066376] [2022-11-16 11:27:33,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775066376] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:33,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:33,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:27:33,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068835118] [2022-11-16 11:27:33,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:33,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 11:27:33,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:33,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 11:27:33,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:27:33,797 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 160 [2022-11-16 11:27:33,805 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 146 transitions, 310 flow. Second operand has 2 states, 2 states have (on average 150.0) internal successors, (300), 2 states have internal predecessors, (300), 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) [2022-11-16 11:27:33,805 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:33,805 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 160 [2022-11-16 11:27:33,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:33,920 INFO L130 PetriNetUnfolder]: 4/138 cut-off events. [2022-11-16 11:27:33,923 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-11-16 11:27:33,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 138 events. 4/138 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 90 event pairs, 0 based on Foata normal form. 14/144 useless extension candidates. Maximal degree in co-relation 113. Up to 7 conditions per place. [2022-11-16 11:27:33,929 INFO L137 encePairwiseOnDemand]: 152/160 looper letters, 6 selfloop transitions, 0 changer transitions 4/138 dead transitions. [2022-11-16 11:27:33,929 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 138 transitions, 306 flow [2022-11-16 11:27:33,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:27:33,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-16 11:27:33,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 304 transitions. [2022-11-16 11:27:33,953 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.95 [2022-11-16 11:27:33,954 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 304 transitions. [2022-11-16 11:27:33,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 304 transitions. [2022-11-16 11:27:33,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:33,963 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 304 transitions. [2022-11-16 11:27:33,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 152.0) internal successors, (304), 2 states have internal predecessors, (304), 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) [2022-11-16 11:27:33,980 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 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) [2022-11-16 11:27:33,981 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 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) [2022-11-16 11:27:33,983 INFO L175 Difference]: Start difference. First operand has 144 places, 146 transitions, 310 flow. Second operand 2 states and 304 transitions. [2022-11-16 11:27:33,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 138 transitions, 306 flow [2022-11-16 11:27:33,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 138 transitions, 294 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-16 11:27:33,997 INFO L231 Difference]: Finished difference. Result has 139 places, 134 transitions, 274 flow [2022-11-16 11:27:34,000 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=274, PETRI_PLACES=139, PETRI_TRANSITIONS=134} [2022-11-16 11:27:34,008 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, -5 predicate places. [2022-11-16 11:27:34,008 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 134 transitions, 274 flow [2022-11-16 11:27:34,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 150.0) internal successors, (300), 2 states have internal predecessors, (300), 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) [2022-11-16 11:27:34,009 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:34,010 INFO L209 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] [2022-11-16 11:27:34,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:27:34,012 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-16 11:27:34,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:34,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1924166417, now seen corresponding path program 1 times [2022-11-16 11:27:34,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:34,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194925173] [2022-11-16 11:27:34,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:34,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:34,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:35,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:35,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:35,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194925173] [2022-11-16 11:27:35,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194925173] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:35,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:35,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:27:35,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053550537] [2022-11-16 11:27:35,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:35,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:27:35,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:35,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:27:35,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:27:35,193 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 160 [2022-11-16 11:27:35,196 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 134 transitions, 274 flow. Second operand has 7 states, 7 states have (on average 122.57142857142857) internal successors, (858), 7 states have internal predecessors, (858), 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) [2022-11-16 11:27:35,196 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:35,196 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 160 [2022-11-16 11:27:35,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:35,536 INFO L130 PetriNetUnfolder]: 53/381 cut-off events. [2022-11-16 11:27:35,537 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-11-16 11:27:35,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 502 conditions, 381 events. 53/381 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1434 event pairs, 9 based on Foata normal form. 1/357 useless extension candidates. Maximal degree in co-relation 499. Up to 49 conditions per place. [2022-11-16 11:27:35,541 INFO L137 encePairwiseOnDemand]: 151/160 looper letters, 47 selfloop transitions, 9 changer transitions 4/166 dead transitions. [2022-11-16 11:27:35,541 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 166 transitions, 470 flow [2022-11-16 11:27:35,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:27:35,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-16 11:27:35,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 894 transitions. [2022-11-16 11:27:35,545 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7982142857142858 [2022-11-16 11:27:35,545 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 894 transitions. [2022-11-16 11:27:35,545 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 894 transitions. [2022-11-16 11:27:35,546 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:35,546 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 894 transitions. [2022-11-16 11:27:35,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 127.71428571428571) internal successors, (894), 7 states have internal predecessors, (894), 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) [2022-11-16 11:27:35,552 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 160.0) internal successors, (1280), 8 states have internal predecessors, (1280), 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) [2022-11-16 11:27:35,553 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 160.0) internal successors, (1280), 8 states have internal predecessors, (1280), 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) [2022-11-16 11:27:35,553 INFO L175 Difference]: Start difference. First operand has 139 places, 134 transitions, 274 flow. Second operand 7 states and 894 transitions. [2022-11-16 11:27:35,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 166 transitions, 470 flow [2022-11-16 11:27:35,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 166 transitions, 470 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:27:35,558 INFO L231 Difference]: Finished difference. Result has 145 places, 140 transitions, 327 flow [2022-11-16 11:27:35,559 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=327, PETRI_PLACES=145, PETRI_TRANSITIONS=140} [2022-11-16 11:27:35,560 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 1 predicate places. [2022-11-16 11:27:35,560 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 140 transitions, 327 flow [2022-11-16 11:27:35,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 122.57142857142857) internal successors, (858), 7 states have internal predecessors, (858), 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) [2022-11-16 11:27:35,561 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:35,561 INFO L209 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] [2022-11-16 11:27:35,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:27:35,561 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-16 11:27:35,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:35,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1048678677, now seen corresponding path program 1 times [2022-11-16 11:27:35,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:35,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528336456] [2022-11-16 11:27:35,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:35,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:35,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:35,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:35,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:35,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528336456] [2022-11-16 11:27:35,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528336456] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:35,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:35,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:27:35,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255054104] [2022-11-16 11:27:35,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:35,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:27:35,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:35,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:27:35,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:27:35,810 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 160 [2022-11-16 11:27:35,811 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 140 transitions, 327 flow. Second operand has 7 states, 7 states have (on average 125.42857142857143) internal successors, (878), 7 states have internal predecessors, (878), 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) [2022-11-16 11:27:35,811 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:35,812 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 160 [2022-11-16 11:27:35,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:36,174 INFO L130 PetriNetUnfolder]: 189/805 cut-off events. [2022-11-16 11:27:36,174 INFO L131 PetriNetUnfolder]: For 71/82 co-relation queries the response was YES. [2022-11-16 11:27:36,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1287 conditions, 805 events. 189/805 cut-off events. For 71/82 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 4615 event pairs, 105 based on Foata normal form. 0/676 useless extension candidates. Maximal degree in co-relation 1279. Up to 252 conditions per place. [2022-11-16 11:27:36,185 INFO L137 encePairwiseOnDemand]: 151/160 looper letters, 41 selfloop transitions, 8 changer transitions 0/160 dead transitions. [2022-11-16 11:27:36,186 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 160 transitions, 473 flow [2022-11-16 11:27:36,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:27:36,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-16 11:27:36,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1026 transitions. [2022-11-16 11:27:36,194 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8015625 [2022-11-16 11:27:36,194 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1026 transitions. [2022-11-16 11:27:36,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1026 transitions. [2022-11-16 11:27:36,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:36,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1026 transitions. [2022-11-16 11:27:36,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 128.25) internal successors, (1026), 8 states have internal predecessors, (1026), 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) [2022-11-16 11:27:36,203 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 160.0) internal successors, (1440), 9 states have internal predecessors, (1440), 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) [2022-11-16 11:27:36,204 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 160.0) internal successors, (1440), 9 states have internal predecessors, (1440), 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) [2022-11-16 11:27:36,204 INFO L175 Difference]: Start difference. First operand has 145 places, 140 transitions, 327 flow. Second operand 8 states and 1026 transitions. [2022-11-16 11:27:36,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 160 transitions, 473 flow [2022-11-16 11:27:36,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 160 transitions, 469 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-11-16 11:27:36,212 INFO L231 Difference]: Finished difference. Result has 151 places, 143 transitions, 359 flow [2022-11-16 11:27:36,213 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=359, PETRI_PLACES=151, PETRI_TRANSITIONS=143} [2022-11-16 11:27:36,213 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 7 predicate places. [2022-11-16 11:27:36,213 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 143 transitions, 359 flow [2022-11-16 11:27:36,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 125.42857142857143) internal successors, (878), 7 states have internal predecessors, (878), 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) [2022-11-16 11:27:36,214 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:36,215 INFO L209 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] [2022-11-16 11:27:36,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:27:36,215 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-16 11:27:36,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:36,218 INFO L85 PathProgramCache]: Analyzing trace with hash 574220531, now seen corresponding path program 1 times [2022-11-16 11:27:36,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:36,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726176258] [2022-11-16 11:27:36,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:36,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:36,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:36,580 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:36,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:36,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726176258] [2022-11-16 11:27:36,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726176258] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:36,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:36,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:27:36,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768735565] [2022-11-16 11:27:36,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:36,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:27:36,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:36,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:27:36,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:27:36,585 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 160 [2022-11-16 11:27:36,587 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 143 transitions, 359 flow. Second operand has 10 states, 10 states have (on average 104.1) internal successors, (1041), 10 states have internal predecessors, (1041), 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) [2022-11-16 11:27:36,587 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:36,588 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 160 [2022-11-16 11:27:36,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:37,400 INFO L130 PetriNetUnfolder]: 852/2288 cut-off events. [2022-11-16 11:27:37,400 INFO L131 PetriNetUnfolder]: For 319/341 co-relation queries the response was YES. [2022-11-16 11:27:37,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4006 conditions, 2288 events. 852/2288 cut-off events. For 319/341 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 17409 event pairs, 597 based on Foata normal form. 21/1986 useless extension candidates. Maximal degree in co-relation 3996. Up to 1077 conditions per place. [2022-11-16 11:27:37,417 INFO L137 encePairwiseOnDemand]: 146/160 looper letters, 65 selfloop transitions, 13 changer transitions 0/172 dead transitions. [2022-11-16 11:27:37,418 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 172 transitions, 583 flow [2022-11-16 11:27:37,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:27:37,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 11:27:37,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1379 transitions. [2022-11-16 11:27:37,422 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6629807692307692 [2022-11-16 11:27:37,422 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1379 transitions. [2022-11-16 11:27:37,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1379 transitions. [2022-11-16 11:27:37,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:37,424 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1379 transitions. [2022-11-16 11:27:37,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 106.07692307692308) internal successors, (1379), 13 states have internal predecessors, (1379), 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) [2022-11-16 11:27:37,438 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 160.0) internal successors, (2240), 14 states have internal predecessors, (2240), 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) [2022-11-16 11:27:37,439 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 160.0) internal successors, (2240), 14 states have internal predecessors, (2240), 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) [2022-11-16 11:27:37,439 INFO L175 Difference]: Start difference. First operand has 151 places, 143 transitions, 359 flow. Second operand 13 states and 1379 transitions. [2022-11-16 11:27:37,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 172 transitions, 583 flow [2022-11-16 11:27:37,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 172 transitions, 573 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 11:27:37,445 INFO L231 Difference]: Finished difference. Result has 164 places, 147 transitions, 402 flow [2022-11-16 11:27:37,446 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=349, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=402, PETRI_PLACES=164, PETRI_TRANSITIONS=147} [2022-11-16 11:27:37,447 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 20 predicate places. [2022-11-16 11:27:37,452 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 147 transitions, 402 flow [2022-11-16 11:27:37,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 104.1) internal successors, (1041), 10 states have internal predecessors, (1041), 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) [2022-11-16 11:27:37,453 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:37,453 INFO L209 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] [2022-11-16 11:27:37,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:27:37,454 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-16 11:27:37,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:37,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1737730619, now seen corresponding path program 1 times [2022-11-16 11:27:37,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:37,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70448975] [2022-11-16 11:27:37,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:37,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:37,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:38,025 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:38,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:38,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70448975] [2022-11-16 11:27:38,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70448975] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:38,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:38,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:27:38,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845035113] [2022-11-16 11:27:38,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:38,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:27:38,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:38,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:27:38,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:27:38,083 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 160 [2022-11-16 11:27:38,084 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 147 transitions, 402 flow. Second operand has 10 states, 10 states have (on average 105.0) internal successors, (1050), 10 states have internal predecessors, (1050), 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) [2022-11-16 11:27:38,084 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:38,084 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 160 [2022-11-16 11:27:38,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:38,998 INFO L130 PetriNetUnfolder]: 640/1571 cut-off events. [2022-11-16 11:27:38,998 INFO L131 PetriNetUnfolder]: For 405/423 co-relation queries the response was YES. [2022-11-16 11:27:39,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3031 conditions, 1571 events. 640/1571 cut-off events. For 405/423 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 10421 event pairs, 371 based on Foata normal form. 18/1416 useless extension candidates. Maximal degree in co-relation 3016. Up to 747 conditions per place. [2022-11-16 11:27:39,010 INFO L137 encePairwiseOnDemand]: 147/160 looper letters, 49 selfloop transitions, 7 changer transitions 21/171 dead transitions. [2022-11-16 11:27:39,011 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 171 transitions, 614 flow [2022-11-16 11:27:39,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:27:39,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 11:27:39,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1288 transitions. [2022-11-16 11:27:39,015 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6708333333333333 [2022-11-16 11:27:39,015 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1288 transitions. [2022-11-16 11:27:39,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1288 transitions. [2022-11-16 11:27:39,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:39,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1288 transitions. [2022-11-16 11:27:39,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 107.33333333333333) internal successors, (1288), 12 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) [2022-11-16 11:27:39,022 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 160.0) internal successors, (2080), 13 states have internal predecessors, (2080), 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) [2022-11-16 11:27:39,023 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 160.0) internal successors, (2080), 13 states have internal predecessors, (2080), 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) [2022-11-16 11:27:39,023 INFO L175 Difference]: Start difference. First operand has 164 places, 147 transitions, 402 flow. Second operand 12 states and 1288 transitions. [2022-11-16 11:27:39,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 171 transitions, 614 flow [2022-11-16 11:27:39,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 171 transitions, 597 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-11-16 11:27:39,028 INFO L231 Difference]: Finished difference. Result has 170 places, 141 transitions, 365 flow [2022-11-16 11:27:39,029 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=385, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=365, PETRI_PLACES=170, PETRI_TRANSITIONS=141} [2022-11-16 11:27:39,029 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 26 predicate places. [2022-11-16 11:27:39,030 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 141 transitions, 365 flow [2022-11-16 11:27:39,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 105.0) internal successors, (1050), 10 states have internal predecessors, (1050), 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) [2022-11-16 11:27:39,030 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:39,031 INFO L209 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] [2022-11-16 11:27:39,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:27:39,031 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-16 11:27:39,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:39,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1621692130, now seen corresponding path program 1 times [2022-11-16 11:27:39,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:39,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755443898] [2022-11-16 11:27:39,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:39,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:39,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:39,251 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:27:39,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:39,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755443898] [2022-11-16 11:27:39,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755443898] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:27:39,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1342136445] [2022-11-16 11:27:39,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:39,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:27:39,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:27:39,258 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:27:39,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 11:27:39,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:39,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 11:27:39,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:27:39,785 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:27:39,786 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:27:40,085 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:27:40,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1342136445] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 11:27:40,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-16 11:27:40,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 18 [2022-11-16 11:27:40,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66713768] [2022-11-16 11:27:40,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:40,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:27:40,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:40,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:27:40,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:27:40,090 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 160 [2022-11-16 11:27:40,091 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 141 transitions, 365 flow. Second operand has 9 states, 9 states have (on average 117.22222222222223) internal successors, (1055), 9 states have internal predecessors, (1055), 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) [2022-11-16 11:27:40,091 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:40,092 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 160 [2022-11-16 11:27:40,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:40,861 INFO L130 PetriNetUnfolder]: 1380/2953 cut-off events. [2022-11-16 11:27:40,862 INFO L131 PetriNetUnfolder]: For 942/942 co-relation queries the response was YES. [2022-11-16 11:27:40,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6242 conditions, 2953 events. 1380/2953 cut-off events. For 942/942 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 22589 event pairs, 335 based on Foata normal form. 9/2874 useless extension candidates. Maximal degree in co-relation 6225. Up to 619 conditions per place. [2022-11-16 11:27:40,889 INFO L137 encePairwiseOnDemand]: 149/160 looper letters, 72 selfloop transitions, 17 changer transitions 0/192 dead transitions. [2022-11-16 11:27:40,889 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 192 transitions, 688 flow [2022-11-16 11:27:40,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:27:40,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 11:27:40,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1343 transitions. [2022-11-16 11:27:40,893 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7630681818181818 [2022-11-16 11:27:40,893 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1343 transitions. [2022-11-16 11:27:40,893 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1343 transitions. [2022-11-16 11:27:40,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:40,894 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1343 transitions. [2022-11-16 11:27:40,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 122.0909090909091) internal successors, (1343), 11 states have internal predecessors, (1343), 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) [2022-11-16 11:27:40,901 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 160.0) internal successors, (1920), 12 states have internal predecessors, (1920), 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) [2022-11-16 11:27:40,902 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 160.0) internal successors, (1920), 12 states have internal predecessors, (1920), 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) [2022-11-16 11:27:40,902 INFO L175 Difference]: Start difference. First operand has 170 places, 141 transitions, 365 flow. Second operand 11 states and 1343 transitions. [2022-11-16 11:27:40,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 192 transitions, 688 flow [2022-11-16 11:27:40,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 192 transitions, 627 flow, removed 23 selfloop flow, removed 14 redundant places. [2022-11-16 11:27:40,914 INFO L231 Difference]: Finished difference. Result has 159 places, 153 transitions, 428 flow [2022-11-16 11:27:40,914 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=428, PETRI_PLACES=159, PETRI_TRANSITIONS=153} [2022-11-16 11:27:40,915 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 15 predicate places. [2022-11-16 11:27:40,915 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 153 transitions, 428 flow [2022-11-16 11:27:40,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 117.22222222222223) internal successors, (1055), 9 states have internal predecessors, (1055), 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) [2022-11-16 11:27:40,916 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:40,916 INFO L209 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] [2022-11-16 11:27:40,932 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-16 11:27:41,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:27:41,123 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-16 11:27:41,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:41,123 INFO L85 PathProgramCache]: Analyzing trace with hash -357803648, now seen corresponding path program 2 times [2022-11-16 11:27:41,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:41,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367291680] [2022-11-16 11:27:41,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:41,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:41,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:41,377 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:27:41,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:41,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367291680] [2022-11-16 11:27:41,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367291680] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:27:41,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1180133476] [2022-11-16 11:27:41,378 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 11:27:41,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:27:41,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:27:41,383 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:27:41,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 11:27:41,522 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 11:27:41,522 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:27:41,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 11:27:41,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:27:41,734 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:27:41,735 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:27:42,017 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:27:42,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1180133476] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 11:27:42,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-16 11:27:42,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 18 [2022-11-16 11:27:42,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434979158] [2022-11-16 11:27:42,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:42,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:27:42,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:42,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:27:42,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:27:42,021 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 160 [2022-11-16 11:27:42,023 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 153 transitions, 428 flow. Second operand has 9 states, 9 states have (on average 117.22222222222223) internal successors, (1055), 9 states have internal predecessors, (1055), 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) [2022-11-16 11:27:42,023 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:42,023 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 160 [2022-11-16 11:27:42,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:42,828 INFO L130 PetriNetUnfolder]: 1543/3328 cut-off events. [2022-11-16 11:27:42,828 INFO L131 PetriNetUnfolder]: For 1459/1476 co-relation queries the response was YES. [2022-11-16 11:27:42,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7655 conditions, 3328 events. 1543/3328 cut-off events. For 1459/1476 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 25720 event pairs, 196 based on Foata normal form. 7/3042 useless extension candidates. Maximal degree in co-relation 7642. Up to 657 conditions per place. [2022-11-16 11:27:42,860 INFO L137 encePairwiseOnDemand]: 148/160 looper letters, 71 selfloop transitions, 30 changer transitions 0/204 dead transitions. [2022-11-16 11:27:42,860 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 204 transitions, 816 flow [2022-11-16 11:27:42,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:27:42,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 11:27:42,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1335 transitions. [2022-11-16 11:27:42,865 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7585227272727273 [2022-11-16 11:27:42,865 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1335 transitions. [2022-11-16 11:27:42,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1335 transitions. [2022-11-16 11:27:42,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:42,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1335 transitions. [2022-11-16 11:27:42,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 121.36363636363636) internal successors, (1335), 11 states have internal predecessors, (1335), 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) [2022-11-16 11:27:42,874 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 160.0) internal successors, (1920), 12 states have internal predecessors, (1920), 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) [2022-11-16 11:27:42,875 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 160.0) internal successors, (1920), 12 states have internal predecessors, (1920), 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) [2022-11-16 11:27:42,876 INFO L175 Difference]: Start difference. First operand has 159 places, 153 transitions, 428 flow. Second operand 11 states and 1335 transitions. [2022-11-16 11:27:42,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 204 transitions, 816 flow [2022-11-16 11:27:42,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 204 transitions, 811 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 11:27:42,899 INFO L231 Difference]: Finished difference. Result has 172 places, 171 transitions, 639 flow [2022-11-16 11:27:42,900 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=423, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=639, PETRI_PLACES=172, PETRI_TRANSITIONS=171} [2022-11-16 11:27:42,901 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 28 predicate places. [2022-11-16 11:27:42,901 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 171 transitions, 639 flow [2022-11-16 11:27:42,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 117.22222222222223) internal successors, (1055), 9 states have internal predecessors, (1055), 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) [2022-11-16 11:27:42,902 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:42,902 INFO L209 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] [2022-11-16 11:27:42,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:27:43,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:27:43,108 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-16 11:27:43,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:43,109 INFO L85 PathProgramCache]: Analyzing trace with hash 2019126440, now seen corresponding path program 3 times [2022-11-16 11:27:43,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:43,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976522532] [2022-11-16 11:27:43,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:43,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:43,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:43,376 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:27:43,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:43,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976522532] [2022-11-16 11:27:43,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976522532] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:27:43,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1042003562] [2022-11-16 11:27:43,377 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 11:27:43,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:27:43,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:27:43,379 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:27:43,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 11:27:43,527 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-16 11:27:43,527 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:27:43,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 11:27:43,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:27:43,806 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:27:43,806 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:27:44,130 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:27:44,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1042003562] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 11:27:44,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-16 11:27:44,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 19 [2022-11-16 11:27:44,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229000015] [2022-11-16 11:27:44,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:44,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:27:44,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:44,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:27:44,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2022-11-16 11:27:44,134 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 160 [2022-11-16 11:27:44,136 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 171 transitions, 639 flow. Second operand has 9 states, 9 states have (on average 117.22222222222223) internal successors, (1055), 9 states have internal predecessors, (1055), 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) [2022-11-16 11:27:44,136 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:44,136 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 160 [2022-11-16 11:27:44,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:45,234 INFO L130 PetriNetUnfolder]: 1927/4286 cut-off events. [2022-11-16 11:27:45,234 INFO L131 PetriNetUnfolder]: For 6288/6321 co-relation queries the response was YES. [2022-11-16 11:27:45,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12156 conditions, 4286 events. 1927/4286 cut-off events. For 6288/6321 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 35435 event pairs, 367 based on Foata normal form. 25/3930 useless extension candidates. Maximal degree in co-relation 12137. Up to 765 conditions per place. [2022-11-16 11:27:45,282 INFO L137 encePairwiseOnDemand]: 147/160 looper letters, 87 selfloop transitions, 47 changer transitions 0/237 dead transitions. [2022-11-16 11:27:45,282 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 237 transitions, 1237 flow [2022-11-16 11:27:45,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:27:45,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 11:27:45,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1354 transitions. [2022-11-16 11:27:45,288 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7693181818181818 [2022-11-16 11:27:45,288 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1354 transitions. [2022-11-16 11:27:45,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1354 transitions. [2022-11-16 11:27:45,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:45,290 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1354 transitions. [2022-11-16 11:27:45,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 123.0909090909091) internal successors, (1354), 11 states have internal predecessors, (1354), 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) [2022-11-16 11:27:45,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 160.0) internal successors, (1920), 12 states have internal predecessors, (1920), 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) [2022-11-16 11:27:45,300 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 160.0) internal successors, (1920), 12 states have internal predecessors, (1920), 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) [2022-11-16 11:27:45,300 INFO L175 Difference]: Start difference. First operand has 172 places, 171 transitions, 639 flow. Second operand 11 states and 1354 transitions. [2022-11-16 11:27:45,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 237 transitions, 1237 flow [2022-11-16 11:27:45,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 237 transitions, 1208 flow, removed 11 selfloop flow, removed 4 redundant places. [2022-11-16 11:27:45,387 INFO L231 Difference]: Finished difference. Result has 183 places, 191 transitions, 967 flow [2022-11-16 11:27:45,388 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=624, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=967, PETRI_PLACES=183, PETRI_TRANSITIONS=191} [2022-11-16 11:27:45,392 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 39 predicate places. [2022-11-16 11:27:45,393 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 191 transitions, 967 flow [2022-11-16 11:27:45,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 117.22222222222223) internal successors, (1055), 9 states have internal predecessors, (1055), 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) [2022-11-16 11:27:45,394 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:45,394 INFO L209 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] [2022-11-16 11:27:45,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 11:27:45,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-16 11:27:45,602 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-16 11:27:45,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:45,602 INFO L85 PathProgramCache]: Analyzing trace with hash -955670840, now seen corresponding path program 4 times [2022-11-16 11:27:45,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:45,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674441558] [2022-11-16 11:27:45,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:45,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:45,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:45,879 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:27:45,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:45,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674441558] [2022-11-16 11:27:45,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674441558] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:27:45,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562157672] [2022-11-16 11:27:45,881 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 11:27:45,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:27:45,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:27:45,883 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:27:45,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 11:27:46,003 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 11:27:46,003 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:27:46,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 11:27:46,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:27:46,243 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:27:46,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:27:46,525 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:27:46,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562157672] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 11:27:46,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-16 11:27:46,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 19 [2022-11-16 11:27:46,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883587725] [2022-11-16 11:27:46,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:46,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:27:46,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:46,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:27:46,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2022-11-16 11:27:46,529 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 160 [2022-11-16 11:27:46,531 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 191 transitions, 967 flow. Second operand has 9 states, 9 states have (on average 117.22222222222223) internal successors, (1055), 9 states have internal predecessors, (1055), 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) [2022-11-16 11:27:46,531 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:46,531 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 160 [2022-11-16 11:27:46,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:47,660 INFO L130 PetriNetUnfolder]: 1994/4491 cut-off events. [2022-11-16 11:27:47,661 INFO L131 PetriNetUnfolder]: For 12039/12176 co-relation queries the response was YES. [2022-11-16 11:27:47,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14420 conditions, 4491 events. 1994/4491 cut-off events. For 12039/12176 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 37683 event pairs, 272 based on Foata normal form. 23/4122 useless extension candidates. Maximal degree in co-relation 14396. Up to 1136 conditions per place. [2022-11-16 11:27:47,704 INFO L137 encePairwiseOnDemand]: 147/160 looper letters, 78 selfloop transitions, 47 changer transitions 0/228 dead transitions. [2022-11-16 11:27:47,704 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 228 transitions, 1405 flow [2022-11-16 11:27:47,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 11:27:47,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-16 11:27:47,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1224 transitions. [2022-11-16 11:27:47,708 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.765 [2022-11-16 11:27:47,708 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1224 transitions. [2022-11-16 11:27:47,708 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1224 transitions. [2022-11-16 11:27:47,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:47,709 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1224 transitions. [2022-11-16 11:27:47,712 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 122.4) internal successors, (1224), 10 states have internal predecessors, (1224), 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) [2022-11-16 11:27:47,715 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 160.0) internal successors, (1760), 11 states have internal predecessors, (1760), 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) [2022-11-16 11:27:47,716 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 160.0) internal successors, (1760), 11 states have internal predecessors, (1760), 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) [2022-11-16 11:27:47,716 INFO L175 Difference]: Start difference. First operand has 183 places, 191 transitions, 967 flow. Second operand 10 states and 1224 transitions. [2022-11-16 11:27:47,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 228 transitions, 1405 flow [2022-11-16 11:27:47,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 228 transitions, 1354 flow, removed 9 selfloop flow, removed 6 redundant places. [2022-11-16 11:27:47,799 INFO L231 Difference]: Finished difference. Result has 189 places, 198 transitions, 1160 flow [2022-11-16 11:27:47,799 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=923, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1160, PETRI_PLACES=189, PETRI_TRANSITIONS=198} [2022-11-16 11:27:47,800 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 45 predicate places. [2022-11-16 11:27:47,800 INFO L495 AbstractCegarLoop]: Abstraction has has 189 places, 198 transitions, 1160 flow [2022-11-16 11:27:47,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 117.22222222222223) internal successors, (1055), 9 states have internal predecessors, (1055), 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) [2022-11-16 11:27:47,801 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:47,801 INFO L209 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] [2022-11-16 11:27:47,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 11:27:48,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:27:48,007 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-16 11:27:48,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:48,008 INFO L85 PathProgramCache]: Analyzing trace with hash 346019860, now seen corresponding path program 5 times [2022-11-16 11:27:48,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:48,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656443665] [2022-11-16 11:27:48,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:48,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:48,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:48,305 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:27:48,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:48,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656443665] [2022-11-16 11:27:48,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656443665] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:27:48,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222573164] [2022-11-16 11:27:48,307 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 11:27:48,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:27:48,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:27:48,308 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:27:48,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 11:27:48,441 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 11:27:48,442 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:27:48,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 11:27:48,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:27:48,542 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:27:48,542 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:27:48,648 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:27:48,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222573164] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:27:48,648 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:27:48,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7] total 17 [2022-11-16 11:27:48,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144452207] [2022-11-16 11:27:48,649 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:27:48,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-16 11:27:48,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:48,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-16 11:27:48,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2022-11-16 11:27:48,655 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 160 [2022-11-16 11:27:48,658 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 198 transitions, 1160 flow. Second operand has 17 states, 17 states have (on average 113.47058823529412) internal successors, (1929), 17 states have internal predecessors, (1929), 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) [2022-11-16 11:27:48,659 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:48,659 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 160 [2022-11-16 11:27:48,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:51,576 INFO L130 PetriNetUnfolder]: 5125/10785 cut-off events. [2022-11-16 11:27:51,576 INFO L131 PetriNetUnfolder]: For 36730/37096 co-relation queries the response was YES. [2022-11-16 11:27:51,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35395 conditions, 10785 events. 5125/10785 cut-off events. For 36730/37096 co-relation queries the response was YES. Maximal size of possible extension queue 594. Compared 96503 event pairs, 566 based on Foata normal form. 83/10294 useless extension candidates. Maximal degree in co-relation 35368. Up to 1075 conditions per place. [2022-11-16 11:27:51,699 INFO L137 encePairwiseOnDemand]: 144/160 looper letters, 237 selfloop transitions, 142 changer transitions 0/478 dead transitions. [2022-11-16 11:27:51,699 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 478 transitions, 3766 flow [2022-11-16 11:27:51,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 11:27:51,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-11-16 11:27:51,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2925 transitions. [2022-11-16 11:27:51,711 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.76171875 [2022-11-16 11:27:51,711 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2925 transitions. [2022-11-16 11:27:51,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2925 transitions. [2022-11-16 11:27:51,714 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:51,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2925 transitions. [2022-11-16 11:27:51,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 121.875) internal successors, (2925), 24 states have internal predecessors, (2925), 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) [2022-11-16 11:27:51,733 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 160.0) internal successors, (4000), 25 states have internal predecessors, (4000), 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) [2022-11-16 11:27:51,744 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 160.0) internal successors, (4000), 25 states have internal predecessors, (4000), 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) [2022-11-16 11:27:51,752 INFO L175 Difference]: Start difference. First operand has 189 places, 198 transitions, 1160 flow. Second operand 24 states and 2925 transitions. [2022-11-16 11:27:51,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 478 transitions, 3766 flow [2022-11-16 11:27:52,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 478 transitions, 3603 flow, removed 30 selfloop flow, removed 6 redundant places. [2022-11-16 11:27:52,090 INFO L231 Difference]: Finished difference. Result has 224 places, 300 transitions, 2771 flow [2022-11-16 11:27:52,092 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=1095, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=2771, PETRI_PLACES=224, PETRI_TRANSITIONS=300} [2022-11-16 11:27:52,093 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 80 predicate places. [2022-11-16 11:27:52,093 INFO L495 AbstractCegarLoop]: Abstraction has has 224 places, 300 transitions, 2771 flow [2022-11-16 11:27:52,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 113.47058823529412) internal successors, (1929), 17 states have internal predecessors, (1929), 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) [2022-11-16 11:27:52,094 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:52,095 INFO L209 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] [2022-11-16 11:27:52,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-16 11:27:52,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-16 11:27:52,300 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-16 11:27:52,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:52,301 INFO L85 PathProgramCache]: Analyzing trace with hash -808958692, now seen corresponding path program 1 times [2022-11-16 11:27:52,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:52,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570800841] [2022-11-16 11:27:52,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:52,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:52,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:52,497 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:27:52,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:52,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570800841] [2022-11-16 11:27:52,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570800841] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:27:52,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125361164] [2022-11-16 11:27:52,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:52,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:27:52,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:27:52,500 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:27:52,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 11:27:52,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:52,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 11:27:52,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:27:52,744 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:27:52,744 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:27:52,917 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:27:52,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125361164] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 11:27:52,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-16 11:27:52,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2022-11-16 11:27:52,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547789596] [2022-11-16 11:27:52,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:52,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:27:52,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:52,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:27:52,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:27:52,921 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 160 [2022-11-16 11:27:52,923 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 300 transitions, 2771 flow. Second operand has 7 states, 7 states have (on average 125.57142857142857) internal successors, (879), 7 states have internal predecessors, (879), 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) [2022-11-16 11:27:52,923 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:52,923 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 160 [2022-11-16 11:27:52,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:53,690 INFO L130 PetriNetUnfolder]: 1010/3020 cut-off events. [2022-11-16 11:27:53,690 INFO L131 PetriNetUnfolder]: For 22855/23662 co-relation queries the response was YES. [2022-11-16 11:27:53,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11527 conditions, 3020 events. 1010/3020 cut-off events. For 22855/23662 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 25376 event pairs, 201 based on Foata normal form. 209/2998 useless extension candidates. Maximal degree in co-relation 11483. Up to 650 conditions per place. [2022-11-16 11:27:53,735 INFO L137 encePairwiseOnDemand]: 152/160 looper letters, 99 selfloop transitions, 24 changer transitions 0/335 dead transitions. [2022-11-16 11:27:53,736 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 335 transitions, 3492 flow [2022-11-16 11:27:53,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:27:53,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-16 11:27:53,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 890 transitions. [2022-11-16 11:27:53,738 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7946428571428571 [2022-11-16 11:27:53,738 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 890 transitions. [2022-11-16 11:27:53,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 890 transitions. [2022-11-16 11:27:53,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:53,739 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 890 transitions. [2022-11-16 11:27:53,741 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 127.14285714285714) internal successors, (890), 7 states have internal predecessors, (890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:53,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 160.0) internal successors, (1280), 8 states have internal predecessors, (1280), 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) [2022-11-16 11:27:53,743 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 160.0) internal successors, (1280), 8 states have internal predecessors, (1280), 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) [2022-11-16 11:27:53,744 INFO L175 Difference]: Start difference. First operand has 224 places, 300 transitions, 2771 flow. Second operand 7 states and 890 transitions. [2022-11-16 11:27:53,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 335 transitions, 3492 flow [2022-11-16 11:27:53,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 335 transitions, 3352 flow, removed 33 selfloop flow, removed 9 redundant places. [2022-11-16 11:27:53,869 INFO L231 Difference]: Finished difference. Result has 222 places, 300 transitions, 2695 flow [2022-11-16 11:27:53,869 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=2622, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2695, PETRI_PLACES=222, PETRI_TRANSITIONS=300} [2022-11-16 11:27:53,870 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 78 predicate places. [2022-11-16 11:27:53,870 INFO L495 AbstractCegarLoop]: Abstraction has has 222 places, 300 transitions, 2695 flow [2022-11-16 11:27:53,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 125.57142857142857) internal successors, (879), 7 states have internal predecessors, (879), 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) [2022-11-16 11:27:53,870 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:53,871 INFO L209 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] [2022-11-16 11:27:53,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-16 11:27:54,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-16 11:27:54,077 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-16 11:27:54,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:54,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1666570004, now seen corresponding path program 6 times [2022-11-16 11:27:54,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:54,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123690710] [2022-11-16 11:27:54,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:54,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:54,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:54,334 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:27:54,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:54,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123690710] [2022-11-16 11:27:54,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123690710] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:27:54,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [54335233] [2022-11-16 11:27:54,335 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 11:27:54,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:27:54,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:27:54,339 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:27:54,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-16 11:27:54,491 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2022-11-16 11:27:54,491 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:27:54,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 11:27:54,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:27:54,627 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:27:54,627 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:27:54,749 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:27:54,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [54335233] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:27:54,749 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:27:54,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7] total 17 [2022-11-16 11:27:54,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350884747] [2022-11-16 11:27:54,750 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:27:54,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-16 11:27:54,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:54,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-16 11:27:54,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2022-11-16 11:27:54,753 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 160 [2022-11-16 11:27:54,756 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 300 transitions, 2695 flow. Second operand has 17 states, 17 states have (on average 113.41176470588235) internal successors, (1928), 17 states have internal predecessors, (1928), 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) [2022-11-16 11:27:54,756 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:54,756 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 160 [2022-11-16 11:27:54,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:58,668 INFO L130 PetriNetUnfolder]: 6451/13305 cut-off events. [2022-11-16 11:27:58,669 INFO L131 PetriNetUnfolder]: For 76235/76417 co-relation queries the response was YES. [2022-11-16 11:27:58,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50725 conditions, 13305 events. 6451/13305 cut-off events. For 76235/76417 co-relation queries the response was YES. Maximal size of possible extension queue 550. Compared 118844 event pairs, 547 based on Foata normal form. 34/13116 useless extension candidates. Maximal degree in co-relation 50684. Up to 1218 conditions per place. [2022-11-16 11:27:58,819 INFO L137 encePairwiseOnDemand]: 144/160 looper letters, 283 selfloop transitions, 268 changer transitions 0/650 dead transitions. [2022-11-16 11:27:58,819 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 650 transitions, 6258 flow [2022-11-16 11:27:58,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-16 11:27:58,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-11-16 11:27:58,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 4120 transitions. [2022-11-16 11:27:58,828 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7573529411764706 [2022-11-16 11:27:58,828 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 4120 transitions. [2022-11-16 11:27:58,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 4120 transitions. [2022-11-16 11:27:58,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:58,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 4120 transitions. [2022-11-16 11:27:58,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 121.17647058823529) internal successors, (4120), 34 states have internal predecessors, (4120), 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) [2022-11-16 11:27:58,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 160.0) internal successors, (5600), 35 states have internal predecessors, (5600), 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) [2022-11-16 11:27:58,854 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 160.0) internal successors, (5600), 35 states have internal predecessors, (5600), 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) [2022-11-16 11:27:58,855 INFO L175 Difference]: Start difference. First operand has 222 places, 300 transitions, 2695 flow. Second operand 34 states and 4120 transitions. [2022-11-16 11:27:58,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 650 transitions, 6258 flow [2022-11-16 11:27:59,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 650 transitions, 6169 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:27:59,496 INFO L231 Difference]: Finished difference. Result has 260 places, 425 transitions, 4830 flow [2022-11-16 11:27:59,497 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=2668, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=143, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=4830, PETRI_PLACES=260, PETRI_TRANSITIONS=425} [2022-11-16 11:27:59,498 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 116 predicate places. [2022-11-16 11:27:59,498 INFO L495 AbstractCegarLoop]: Abstraction has has 260 places, 425 transitions, 4830 flow [2022-11-16 11:27:59,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 113.41176470588235) internal successors, (1928), 17 states have internal predecessors, (1928), 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) [2022-11-16 11:27:59,499 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:59,499 INFO L209 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] [2022-11-16 11:27:59,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-16 11:27:59,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:27:59,704 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-16 11:27:59,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:59,705 INFO L85 PathProgramCache]: Analyzing trace with hash 141334880, now seen corresponding path program 1 times [2022-11-16 11:27:59,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:59,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578464508] [2022-11-16 11:27:59,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:59,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:59,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:03,268 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:28:03,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:28:03,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578464508] [2022-11-16 11:28:03,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578464508] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:28:03,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697750263] [2022-11-16 11:28:03,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:03,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:28:03,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:28:03,271 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:28:03,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342ec328-fa59-4ab4-89eb-2d4dd3719588/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-16 11:28:03,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:03,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 64 conjunts are in the unsatisfiable core [2022-11-16 11:28:03,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:28:03,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 11:28:04,305 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-16 11:28:04,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-16 11:28:04,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 11:28:05,862 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 11:28:06,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 11:28:06,610 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-16 11:28:06,808 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:28:06,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 17 [2022-11-16 11:28:07,359 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:28:07,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:28:10,078 WARN L833 $PredicateComparison]: unable to prove that (forall ((~M~0 Int) (v_ArrVal_332 (Array Int Int))) (or (not (< ~M~0 c_~N~0)) (= (mod (+ c_~sum3~0 c_~sum2~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_332) c_~A~0.base) (+ c_~A~0.offset (* ~M~0 4)))) 4294967296) (mod c_~sum1~0 4294967296)) (< (+ ~M~0 1) c_~N~0))) is different from false [2022-11-16 11:28:12,279 WARN L833 $PredicateComparison]: unable to prove that (forall ((~M~0 Int) (v_ArrVal_332 (Array Int Int))) (or (not (< ~M~0 c_~N~0)) (= (mod (+ c_~sum3~0 c_~sum2~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_332) c_~A~0.base) (+ c_~A~0.offset (* ~M~0 4)))) 4294967296) (mod (+ c_~sum1~0 |c_thread1Thread1of1ForFork0_#t~mem2|) 4294967296)) (< (+ ~M~0 1) c_~N~0))) is different from false [2022-11-16 11:28:14,321 WARN L833 $PredicateComparison]: unable to prove that (forall ((~M~0 Int) (v_ArrVal_332 (Array Int Int))) (or (not (< ~M~0 c_~N~0)) (= (mod (+ c_~sum1~0 (select (select |c_#memory_int| c_~A~0.base) (+ c_~A~0.offset (* c_thread1Thread1of1ForFork0_~i~0 4)))) 4294967296) (mod (+ c_~sum3~0 c_~sum2~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_332) c_~A~0.base) (+ c_~A~0.offset (* ~M~0 4)))) 4294967296)) (< (+ ~M~0 1) c_~N~0))) is different from false [2022-11-16 11:28:16,403 WARN L833 $PredicateComparison]: unable to prove that (forall ((~M~0 Int) (v_ArrVal_331 (Array Int Int)) (v_ArrVal_332 (Array Int Int))) (or (not (< ~M~0 c_~N~0)) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_331))) (= (mod (+ c_~sum3~0 c_~sum2~0 (select (select (store .cse0 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_332) c_~A~0.base) (+ c_~A~0.offset (* ~M~0 4)))) 4294967296) (mod (+ (select (select .cse0 c_~A~0.base) (+ c_~A~0.offset (* c_thread1Thread1of1ForFork0_~i~0 4))) c_~sum1~0) 4294967296))) (< (+ ~M~0 1) c_~N~0))) is different from false [2022-11-16 11:28:18,531 WARN L833 $PredicateComparison]: unable to prove that (forall ((~M~0 Int) (v_ArrVal_331 (Array Int Int)) (v_ArrVal_332 (Array Int Int))) (or (not (< ~M~0 c_~N~0)) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_331))) (= (mod (+ c_~sum3~0 c_~sum2~0 (select (select (store .cse0 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_332) c_~A~0.base) (+ c_~A~0.offset (* ~M~0 4)))) 4294967296) (mod (+ (select (select .cse0 c_~A~0.base) c_~A~0.offset) c_~sum1~0) 4294967296))) (< (+ ~M~0 1) c_~N~0))) is different from false [2022-11-16 11:28:20,603 WARN L833 $PredicateComparison]: unable to prove that (forall ((~M~0 Int) (v_ArrVal_331 (Array Int Int)) (v_ArrVal_330 (Array Int Int)) (v_ArrVal_332 (Array Int Int))) (or (not (< ~M~0 c_~N~0)) (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_330) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_331))) (= (mod (+ (select (select .cse0 c_~A~0.base) c_~A~0.offset) c_~sum1~0) 4294967296) (mod (+ (select (select (store .cse0 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_332) c_~A~0.base) (+ c_~A~0.offset (* ~M~0 4))) c_~sum3~0 c_~sum2~0) 4294967296))) (< (+ ~M~0 1) c_~N~0))) is different from false [2022-11-16 11:28:22,882 WARN L833 $PredicateComparison]: unable to prove that (forall ((~M~0 Int) (v_ArrVal_331 (Array Int Int)) (v_ArrVal_330 (Array Int Int)) (v_ArrVal_332 (Array Int Int))) (or (not (< ~M~0 c_~N~0)) (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_330) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_331))) (= (mod (+ (select (select (store .cse0 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_332) |c_ULTIMATE.start_main_#t~ret9#1.base|) (+ (* ~M~0 4) |c_ULTIMATE.start_main_#t~ret9#1.offset|)) c_~sum3~0 c_~sum2~0) 4294967296) (mod (+ c_~sum1~0 (select (select .cse0 |c_ULTIMATE.start_main_#t~ret9#1.base|) |c_ULTIMATE.start_main_#t~ret9#1.offset|)) 4294967296))) (< (+ ~M~0 1) c_~N~0))) is different from false [2022-11-16 11:28:24,940 WARN L833 $PredicateComparison]: unable to prove that (forall ((~M~0 Int) (v_ArrVal_331 (Array Int Int)) (v_ArrVal_330 (Array Int Int)) (v_ArrVal_332 (Array Int Int))) (or (not (< ~M~0 c_~N~0)) (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_330) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_331))) (= (mod (+ (select (select (store .cse0 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_332) |c_ULTIMATE.start_create_fresh_uint_array_#res#1.base|) (+ |c_ULTIMATE.start_create_fresh_uint_array_#res#1.offset| (* ~M~0 4))) c_~sum3~0 c_~sum2~0) 4294967296) (mod (+ (select (select .cse0 |c_ULTIMATE.start_create_fresh_uint_array_#res#1.base|) |c_ULTIMATE.start_create_fresh_uint_array_#res#1.offset|) c_~sum1~0) 4294967296))) (< (+ ~M~0 1) c_~N~0))) is different from false [2022-11-16 11:28:26,989 WARN L833 $PredicateComparison]: unable to prove that (forall ((~M~0 Int) (v_ArrVal_331 (Array Int Int)) (v_ArrVal_330 (Array Int Int)) (v_ArrVal_332 (Array Int Int))) (or (not (< ~M~0 c_~N~0)) (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_330) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_331))) (= (mod (+ c_~sum1~0 (select (select .cse0 |c_ULTIMATE.start_create_fresh_uint_array_~arr~0#1.base|) |c_ULTIMATE.start_create_fresh_uint_array_~arr~0#1.offset|)) 4294967296) (mod (+ (select (select (store .cse0 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_332) |c_ULTIMATE.start_create_fresh_uint_array_~arr~0#1.base|) (+ (* ~M~0 4) |c_ULTIMATE.start_create_fresh_uint_array_~arr~0#1.offset|)) c_~sum3~0 c_~sum2~0) 4294967296))) (< (+ ~M~0 1) c_~N~0))) is different from false [2022-11-16 11:28:29,652 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:28:29,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 52 [2022-11-16 11:28:29,692 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:28:29,693 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15734 treesize of output 14720 [2022-11-16 11:28:29,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14710 treesize of output 13174 [2022-11-16 11:28:29,943 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:28:29,944 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13174 treesize of output 12544 [2022-11-16 11:28:30,078 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:28:30,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 12534 treesize of output 11264 [2022-11-16 11:28:51,511 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 11:29:13,063 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 11:29:34,936 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 11:29:54,366 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 11:30:33,882 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-16 11:30:39,062 WARN L233 SmtUtils]: Spent 5.08s on a formula simplification. DAG size of input: 448 DAG size of output: 448 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 11:31:15,493 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 11:31:15,515 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 11:31:15,547 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 11:31:15,564 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-16 11:31:15,565 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 11:31:15,566 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-16 11:31:37,331 WARN L233 SmtUtils]: Spent 21.59s on a formula simplification. DAG size of input: 681 DAG size of output: 681 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 11:33:30,034 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 11:33:30,044 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-16 11:33:30,045 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 11:33:30,046 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-16 11:33:51,770 WARN L233 SmtUtils]: Spent 21.57s on a formula simplification. DAG size of input: 681 DAG size of output: 681 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 11:35:48,981 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 11:36:05,176 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 11:36:26,182 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 11:36:26,202 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 11:36:26,233 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 11:36:26,244 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-16 11:36:26,245 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 11:36:26,246 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-16 11:36:54,319 WARN L233 SmtUtils]: Spent 27.78s on a formula simplification. DAG size of input: 681 DAG size of output: 681 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 11:38:41,217 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 11:38:41,227 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-16 11:38:41,227 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 11:38:41,228 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-16 11:39:01,822 WARN L233 SmtUtils]: Spent 20.45s on a formula simplification. DAG size of input: 681 DAG size of output: 681 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 11:40:45,617 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-16 11:41:30,234 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts.