./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9a4943-f2e6-4bb4-9276-8cf509eb3c6c/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9a4943-f2e6-4bb4-9276-8cf509eb3c6c/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_4e9a4943-f2e6-4bb4-9276-8cf509eb3c6c/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9a4943-f2e6-4bb4-9276-8cf509eb3c6c/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9a4943-f2e6-4bb4-9276-8cf509eb3c6c/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9a4943-f2e6-4bb4-9276-8cf509eb3c6c/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 23c4aefdda14d4315577cd0030d174ab477745d4b270d2de822290a016a0ff8d --- 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 11:12:35,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:12:35,080 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:12:35,124 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:12:35,125 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:12:35,126 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:12:35,127 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:12:35,130 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:12:35,131 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:12:35,133 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:12:35,134 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:12:35,143 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:12:35,144 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:12:35,149 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:12:35,151 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:12:35,152 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:12:35,153 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:12:35,154 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:12:35,155 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:12:35,157 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:12:35,159 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:12:35,164 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:12:35,168 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:12:35,169 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:12:35,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:12:35,186 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:12:35,187 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:12:35,188 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:12:35,188 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:12:35,189 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:12:35,190 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:12:35,190 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:12:35,191 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:12:35,192 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:12:35,193 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:12:35,193 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:12:35,199 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:12:35,200 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:12:35,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:12:35,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:12:35,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:12:35,203 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9a4943-f2e6-4bb4-9276-8cf509eb3c6c/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-16 11:12:35,248 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:12:35,248 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:12:35,249 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:12:35,249 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:12:35,250 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:12:35,250 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:12:35,251 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:12:35,251 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:12:35,251 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:12:35,252 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:12:35,253 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:12:35,253 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:12:35,253 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:12:35,253 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:12:35,254 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:12:35,254 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:12:35,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:12:35,254 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:12:35,255 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 11:12:35,255 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:12:35,255 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:12:35,255 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:12:35,255 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:12:35,256 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:12:35,256 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:12:35,256 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:12:35,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:12:35,256 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:12:35,257 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:12:35,257 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:12:35,257 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:12:35,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:12:35,258 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:12:35,258 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:12:35,258 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:12:35,258 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_4e9a4943-f2e6-4bb4-9276-8cf509eb3c6c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9a4943-f2e6-4bb4-9276-8cf509eb3c6c/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23c4aefdda14d4315577cd0030d174ab477745d4b270d2de822290a016a0ff8d [2022-11-16 11:12:35,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:12:35,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:12:35,603 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:12:35,604 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:12:35,605 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:12:35,606 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9a4943-f2e6-4bb4-9276-8cf509eb3c6c/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i [2022-11-16 11:12:35,691 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9a4943-f2e6-4bb4-9276-8cf509eb3c6c/bin/uautomizer-tPACEb0tL8/data/b73190218/28191d9cebdd4cb68d932a39ef41d683/FLAG19b001725 [2022-11-16 11:12:36,362 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:12:36,362 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9a4943-f2e6-4bb4-9276-8cf509eb3c6c/sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i [2022-11-16 11:12:36,386 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9a4943-f2e6-4bb4-9276-8cf509eb3c6c/bin/uautomizer-tPACEb0tL8/data/b73190218/28191d9cebdd4cb68d932a39ef41d683/FLAG19b001725 [2022-11-16 11:12:36,675 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9a4943-f2e6-4bb4-9276-8cf509eb3c6c/bin/uautomizer-tPACEb0tL8/data/b73190218/28191d9cebdd4cb68d932a39ef41d683 [2022-11-16 11:12:36,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:12:36,679 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:12:36,683 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:12:36,683 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:12:36,687 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:12:36,688 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:12:36" (1/1) ... [2022-11-16 11:12:36,689 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39349f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:36, skipping insertion in model container [2022-11-16 11:12:36,689 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:12:36" (1/1) ... [2022-11-16 11:12:36,698 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:12:36,748 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:12:37,320 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_4e9a4943-f2e6-4bb4-9276-8cf509eb3c6c/sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i[47038,47051] [2022-11-16 11:12:37,371 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:12:37,383 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:12:37,414 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_4e9a4943-f2e6-4bb4-9276-8cf509eb3c6c/sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i[47038,47051] [2022-11-16 11:12:37,431 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:12:37,492 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:12:37,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:37 WrapperNode [2022-11-16 11:12:37,494 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:12:37,495 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:12:37,495 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:12:37,495 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:12:37,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:37" (1/1) ... [2022-11-16 11:12:37,533 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:37" (1/1) ... [2022-11-16 11:12:37,588 INFO L138 Inliner]: procedures = 279, calls = 86, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 359 [2022-11-16 11:12:37,589 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:12:37,589 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:12:37,590 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:12:37,590 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:12:37,603 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:37" (1/1) ... [2022-11-16 11:12:37,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:37" (1/1) ... [2022-11-16 11:12:37,614 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:37" (1/1) ... [2022-11-16 11:12:37,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:37" (1/1) ... [2022-11-16 11:12:37,624 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:37" (1/1) ... [2022-11-16 11:12:37,631 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:37" (1/1) ... [2022-11-16 11:12:37,633 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:37" (1/1) ... [2022-11-16 11:12:37,635 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:37" (1/1) ... [2022-11-16 11:12:37,640 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:12:37,641 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:12:37,641 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:12:37,641 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:12:37,644 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:37" (1/1) ... [2022-11-16 11:12:37,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:12:37,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9a4943-f2e6-4bb4-9276-8cf509eb3c6c/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:12:37,692 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9a4943-f2e6-4bb4-9276-8cf509eb3c6c/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:12:37,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9a4943-f2e6-4bb4-9276-8cf509eb3c6c/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:12:37,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:12:37,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 11:12:37,744 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-11-16 11:12:37,744 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-11-16 11:12:37,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:12:37,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:12:37,744 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-11-16 11:12:37,744 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-11-16 11:12:37,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:12:37,745 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 11:12:37,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:12:37,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:12:37,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 11:12:37,745 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2022-11-16 11:12:37,746 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2022-11-16 11:12:37,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:12:37,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:12:37,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:12:37,748 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 11:12:37,922 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:12:37,924 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:12:38,654 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:12:38,666 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:12:38,667 INFO L300 CfgBuilder]: Removed 28 assume(true) statements. [2022-11-16 11:12:38,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:12:38 BoogieIcfgContainer [2022-11-16 11:12:38,672 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:12:38,675 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:12:38,675 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:12:38,682 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:12:38,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:12:36" (1/3) ... [2022-11-16 11:12:38,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7983c839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:12:38, skipping insertion in model container [2022-11-16 11:12:38,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:37" (2/3) ... [2022-11-16 11:12:38,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7983c839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:12:38, skipping insertion in model container [2022-11-16 11:12:38,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:12:38" (3/3) ... [2022-11-16 11:12:38,686 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_83-list2_racing1.i [2022-11-16 11:12:38,695 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:12:38,705 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:12:38,705 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-11-16 11:12:38,705 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:12:38,830 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2022-11-16 11:12:38,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 363 places, 401 transitions, 844 flow [2022-11-16 11:12:39,356 INFO L130 PetriNetUnfolder]: 164/1253 cut-off events. [2022-11-16 11:12:39,357 INFO L131 PetriNetUnfolder]: For 36/59 co-relation queries the response was YES. [2022-11-16 11:12:39,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1314 conditions, 1253 events. 164/1253 cut-off events. For 36/59 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 8101 event pairs, 0 based on Foata normal form. 0/1005 useless extension candidates. Maximal degree in co-relation 641. Up to 16 conditions per place. [2022-11-16 11:12:39,384 INFO L82 GeneralOperation]: Start removeDead. Operand has 363 places, 401 transitions, 844 flow [2022-11-16 11:12:39,415 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 363 places, 401 transitions, 844 flow [2022-11-16 11:12:39,439 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:12:39,448 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;@15094cca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:12:39,448 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2022-11-16 11:12:39,468 INFO L130 PetriNetUnfolder]: 4/95 cut-off events. [2022-11-16 11:12:39,468 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:12:39,468 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:12:39,470 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] [2022-11-16 11:12:39,471 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2022-11-16 11:12:39,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:39,479 INFO L85 PathProgramCache]: Analyzing trace with hash 2081197414, now seen corresponding path program 1 times [2022-11-16 11:12:39,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:12:39,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987193381] [2022-11-16 11:12:39,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:12:39,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:12:39,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:40,116 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 11:12:40,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:12:40,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987193381] [2022-11-16 11:12:40,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987193381] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:12:40,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:12:40,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:12:40,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685236287] [2022-11-16 11:12:40,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:12:40,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:12:40,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:12:40,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:12:40,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:12:40,223 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 345 out of 401 [2022-11-16 11:12:40,229 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 401 transitions, 844 flow. Second operand has 4 states, 4 states have (on average 346.75) internal successors, (1387), 4 states have internal predecessors, (1387), 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 11:12:40,230 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:12:40,230 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 345 of 401 [2022-11-16 11:12:40,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:12:40,609 INFO L130 PetriNetUnfolder]: 41/809 cut-off events. [2022-11-16 11:12:40,609 INFO L131 PetriNetUnfolder]: For 136/228 co-relation queries the response was YES. [2022-11-16 11:12:40,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 914 conditions, 809 events. 41/809 cut-off events. For 136/228 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 4659 event pairs, 0 based on Foata normal form. 274/975 useless extension candidates. Maximal degree in co-relation 579. Up to 45 conditions per place. [2022-11-16 11:12:40,629 INFO L137 encePairwiseOnDemand]: 364/401 looper letters, 20 selfloop transitions, 4 changer transitions 0/369 dead transitions. [2022-11-16 11:12:40,629 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 369 transitions, 828 flow [2022-11-16 11:12:40,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:12:40,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 11:12:40,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1783 transitions. [2022-11-16 11:12:40,657 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8892768079800498 [2022-11-16 11:12:40,658 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1783 transitions. [2022-11-16 11:12:40,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1783 transitions. [2022-11-16 11:12:40,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:12:40,667 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1783 transitions. [2022-11-16 11:12:40,676 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 356.6) internal successors, (1783), 5 states have internal predecessors, (1783), 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 11:12:40,688 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 401.0) internal successors, (2406), 6 states have internal predecessors, (2406), 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 11:12:40,690 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 401.0) internal successors, (2406), 6 states have internal predecessors, (2406), 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 11:12:40,692 INFO L175 Difference]: Start difference. First operand has 363 places, 401 transitions, 844 flow. Second operand 5 states and 1783 transitions. [2022-11-16 11:12:40,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 369 transitions, 828 flow [2022-11-16 11:12:40,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 369 transitions, 828 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:12:40,711 INFO L231 Difference]: Finished difference. Result has 364 places, 367 transitions, 788 flow [2022-11-16 11:12:40,714 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=401, PETRI_DIFFERENCE_MINUEND_FLOW=776, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=363, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=788, PETRI_PLACES=364, PETRI_TRANSITIONS=367} [2022-11-16 11:12:40,718 INFO L288 CegarLoopForPetriNet]: 363 programPoint places, 1 predicate places. [2022-11-16 11:12:40,719 INFO L495 AbstractCegarLoop]: Abstraction has has 364 places, 367 transitions, 788 flow [2022-11-16 11:12:40,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 346.75) internal successors, (1387), 4 states have internal predecessors, (1387), 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 11:12:40,721 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:12:40,721 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:12:40,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:12:40,722 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2022-11-16 11:12:40,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:40,723 INFO L85 PathProgramCache]: Analyzing trace with hash -241997732, now seen corresponding path program 1 times [2022-11-16 11:12:40,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:12:40,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576004473] [2022-11-16 11:12:40,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:12:40,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:12:40,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:12:40,796 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:12:40,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:12:40,900 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:12:40,901 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 11:12:40,903 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2022-11-16 11:12:40,906 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 31 remaining) [2022-11-16 11:12:40,906 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 31 remaining) [2022-11-16 11:12:40,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 31 remaining) [2022-11-16 11:12:40,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 31 remaining) [2022-11-16 11:12:40,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 31 remaining) [2022-11-16 11:12:40,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 31 remaining) [2022-11-16 11:12:40,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 31 remaining) [2022-11-16 11:12:40,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 31 remaining) [2022-11-16 11:12:40,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 31 remaining) [2022-11-16 11:12:40,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 31 remaining) [2022-11-16 11:12:40,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 31 remaining) [2022-11-16 11:12:40,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 31 remaining) [2022-11-16 11:12:40,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 31 remaining) [2022-11-16 11:12:40,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 31 remaining) [2022-11-16 11:12:40,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 31 remaining) [2022-11-16 11:12:40,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 31 remaining) [2022-11-16 11:12:40,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 31 remaining) [2022-11-16 11:12:40,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 31 remaining) [2022-11-16 11:12:40,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 31 remaining) [2022-11-16 11:12:40,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 31 remaining) [2022-11-16 11:12:40,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 31 remaining) [2022-11-16 11:12:40,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 31 remaining) [2022-11-16 11:12:40,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 31 remaining) [2022-11-16 11:12:40,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 31 remaining) [2022-11-16 11:12:40,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 31 remaining) [2022-11-16 11:12:40,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 31 remaining) [2022-11-16 11:12:40,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 31 remaining) [2022-11-16 11:12:40,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 31 remaining) [2022-11-16 11:12:40,927 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 31 remaining) [2022-11-16 11:12:40,927 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 31 remaining) [2022-11-16 11:12:40,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:12:40,928 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-16 11:12:40,932 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-16 11:12:40,932 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-16 11:12:41,099 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-11-16 11:12:41,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 566 places, 637 transitions, 1364 flow [2022-11-16 11:12:45,049 INFO L130 PetriNetUnfolder]: 1130/6634 cut-off events. [2022-11-16 11:12:45,050 INFO L131 PetriNetUnfolder]: For 602/691 co-relation queries the response was YES. [2022-11-16 11:12:45,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7308 conditions, 6634 events. 1130/6634 cut-off events. For 602/691 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 63947 event pairs, 22 based on Foata normal form. 0/5281 useless extension candidates. Maximal degree in co-relation 4064. Up to 192 conditions per place. [2022-11-16 11:12:45,314 INFO L82 GeneralOperation]: Start removeDead. Operand has 566 places, 637 transitions, 1364 flow [2022-11-16 11:12:45,461 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 566 places, 637 transitions, 1364 flow [2022-11-16 11:12:45,462 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:12:45,463 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;@15094cca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:12:45,463 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2022-11-16 11:12:45,473 INFO L130 PetriNetUnfolder]: 4/94 cut-off events. [2022-11-16 11:12:45,474 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:12:45,474 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:12:45,474 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] [2022-11-16 11:12:45,474 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2022-11-16 11:12:45,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:45,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1310771517, now seen corresponding path program 1 times [2022-11-16 11:12:45,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:12:45,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801724456] [2022-11-16 11:12:45,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:12:45,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:12:45,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:45,619 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 11:12:45,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:12:45,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801724456] [2022-11-16 11:12:45,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801724456] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:12:45,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:12:45,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:12:45,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493324434] [2022-11-16 11:12:45,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:12:45,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:12:45,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:12:45,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:12:45,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:12:45,632 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 543 out of 637 [2022-11-16 11:12:45,637 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 566 places, 637 transitions, 1364 flow. Second operand has 4 states, 4 states have (on average 544.75) internal successors, (2179), 4 states have internal predecessors, (2179), 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 11:12:45,637 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:12:45,637 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 543 of 637 [2022-11-16 11:12:45,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:12:48,587 INFO L130 PetriNetUnfolder]: 578/5255 cut-off events. [2022-11-16 11:12:48,588 INFO L131 PetriNetUnfolder]: For 1977/2909 co-relation queries the response was YES. [2022-11-16 11:12:48,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6518 conditions, 5255 events. 578/5255 cut-off events. For 1977/2909 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 51242 event pairs, 18 based on Foata normal form. 4777/9215 useless extension candidates. Maximal degree in co-relation 3956. Up to 609 conditions per place. [2022-11-16 11:12:49,132 INFO L137 encePairwiseOnDemand]: 576/637 looper letters, 39 selfloop transitions, 4 changer transitions 0/586 dead transitions. [2022-11-16 11:12:49,132 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 566 places, 586 transitions, 1348 flow [2022-11-16 11:12:49,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:12:49,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 11:12:49,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2816 transitions. [2022-11-16 11:12:49,139 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8841444270015698 [2022-11-16 11:12:49,140 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2816 transitions. [2022-11-16 11:12:49,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2816 transitions. [2022-11-16 11:12:49,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:12:49,142 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2816 transitions. [2022-11-16 11:12:49,150 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 563.2) internal successors, (2816), 5 states have internal predecessors, (2816), 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 11:12:49,158 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 637.0) internal successors, (3822), 6 states have internal predecessors, (3822), 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 11:12:49,161 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 637.0) internal successors, (3822), 6 states have internal predecessors, (3822), 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 11:12:49,161 INFO L175 Difference]: Start difference. First operand has 566 places, 637 transitions, 1364 flow. Second operand 5 states and 2816 transitions. [2022-11-16 11:12:49,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 566 places, 586 transitions, 1348 flow [2022-11-16 11:12:49,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 566 places, 586 transitions, 1348 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:12:49,177 INFO L231 Difference]: Finished difference. Result has 569 places, 582 transitions, 1280 flow [2022-11-16 11:12:49,178 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=1248, PETRI_DIFFERENCE_MINUEND_PLACES=562, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=579, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=575, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1280, PETRI_PLACES=569, PETRI_TRANSITIONS=582} [2022-11-16 11:12:49,179 INFO L288 CegarLoopForPetriNet]: 566 programPoint places, 3 predicate places. [2022-11-16 11:12:49,179 INFO L495 AbstractCegarLoop]: Abstraction has has 569 places, 582 transitions, 1280 flow [2022-11-16 11:12:49,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 544.75) internal successors, (2179), 4 states have internal predecessors, (2179), 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 11:12:49,181 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:12:49,181 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:12:49,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:12:49,182 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2022-11-16 11:12:49,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:49,183 INFO L85 PathProgramCache]: Analyzing trace with hash -410994612, now seen corresponding path program 1 times [2022-11-16 11:12:49,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:12:49,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975012597] [2022-11-16 11:12:49,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:12:49,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:12:49,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:49,342 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:12:49,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:12:49,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975012597] [2022-11-16 11:12:49,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975012597] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:12:49,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:12:49,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:12:49,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128851216] [2022-11-16 11:12:49,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:12:49,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:12:49,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:12:49,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:12:49,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:12:49,348 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 543 out of 637 [2022-11-16 11:12:49,352 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 569 places, 582 transitions, 1280 flow. Second operand has 4 states, 4 states have (on average 546.75) internal successors, (2187), 4 states have internal predecessors, (2187), 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 11:12:49,352 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:12:49,353 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 543 of 637 [2022-11-16 11:12:49,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:12:52,491 INFO L130 PetriNetUnfolder]: 578/5254 cut-off events. [2022-11-16 11:12:52,492 INFO L131 PetriNetUnfolder]: For 1982/2899 co-relation queries the response was YES. [2022-11-16 11:12:52,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6533 conditions, 5254 events. 578/5254 cut-off events. For 1982/2899 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 51353 event pairs, 18 based on Foata normal form. 19/4460 useless extension candidates. Maximal degree in co-relation 6426. Up to 598 conditions per place. [2022-11-16 11:12:52,761 INFO L137 encePairwiseOnDemand]: 631/637 looper letters, 31 selfloop transitions, 8 changer transitions 0/582 dead transitions. [2022-11-16 11:12:52,761 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 572 places, 582 transitions, 1356 flow [2022-11-16 11:12:52,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:12:52,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 11:12:52,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2752 transitions. [2022-11-16 11:12:52,770 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8640502354788069 [2022-11-16 11:12:52,770 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2752 transitions. [2022-11-16 11:12:52,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2752 transitions. [2022-11-16 11:12:52,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:12:52,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2752 transitions. [2022-11-16 11:12:52,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 550.4) internal successors, (2752), 5 states have internal predecessors, (2752), 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 11:12:52,790 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 637.0) internal successors, (3822), 6 states have internal predecessors, (3822), 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 11:12:52,793 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 637.0) internal successors, (3822), 6 states have internal predecessors, (3822), 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 11:12:52,793 INFO L175 Difference]: Start difference. First operand has 569 places, 582 transitions, 1280 flow. Second operand 5 states and 2752 transitions. [2022-11-16 11:12:52,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 572 places, 582 transitions, 1356 flow [2022-11-16 11:12:52,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 571 places, 582 transitions, 1354 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:12:52,810 INFO L231 Difference]: Finished difference. Result has 572 places, 582 transitions, 1298 flow [2022-11-16 11:12:52,811 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=1274, PETRI_DIFFERENCE_MINUEND_PLACES=567, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=581, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=573, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1298, PETRI_PLACES=572, PETRI_TRANSITIONS=582} [2022-11-16 11:12:52,812 INFO L288 CegarLoopForPetriNet]: 566 programPoint places, 6 predicate places. [2022-11-16 11:12:52,812 INFO L495 AbstractCegarLoop]: Abstraction has has 572 places, 582 transitions, 1298 flow [2022-11-16 11:12:52,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 546.75) internal successors, (2187), 4 states have internal predecessors, (2187), 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 11:12:52,814 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:12:52,815 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:12:52,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:12:52,815 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2022-11-16 11:12:52,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:52,816 INFO L85 PathProgramCache]: Analyzing trace with hash 144070262, now seen corresponding path program 1 times [2022-11-16 11:12:52,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:12:52,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454299796] [2022-11-16 11:12:52,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:12:52,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:12:52,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:53,082 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:12:53,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:12:53,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454299796] [2022-11-16 11:12:53,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454299796] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:12:53,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911887059] [2022-11-16 11:12:53,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:12:53,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:12:53,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9a4943-f2e6-4bb4-9276-8cf509eb3c6c/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:12:53,088 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9a4943-f2e6-4bb4-9276-8cf509eb3c6c/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:12:53,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9a4943-f2e6-4bb4-9276-8cf509eb3c6c/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 11:12:53,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:53,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 11:12:53,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:12:53,504 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:12:53,505 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:12:53,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911887059] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:12:53,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:12:53,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-16 11:12:53,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952200936] [2022-11-16 11:12:53,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:12:53,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:12:53,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:12:53,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:12:53,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:12:53,514 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 543 out of 637 [2022-11-16 11:12:53,521 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 572 places, 582 transitions, 1298 flow. Second operand has 6 states, 6 states have (on average 545.6666666666666) internal successors, (3274), 6 states have internal predecessors, (3274), 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 11:12:53,521 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:12:53,521 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 543 of 637 [2022-11-16 11:12:53,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:12:56,405 INFO L130 PetriNetUnfolder]: 578/5253 cut-off events. [2022-11-16 11:12:56,406 INFO L131 PetriNetUnfolder]: For 1988/2890 co-relation queries the response was YES. [2022-11-16 11:12:56,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6542 conditions, 5253 events. 578/5253 cut-off events. For 1988/2890 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 51281 event pairs, 18 based on Foata normal form. 16/4456 useless extension candidates. Maximal degree in co-relation 3972. Up to 601 conditions per place. [2022-11-16 11:12:56,648 INFO L137 encePairwiseOnDemand]: 632/637 looper letters, 35 selfloop transitions, 6 changer transitions 0/584 dead transitions. [2022-11-16 11:12:56,648 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 577 places, 584 transitions, 1382 flow [2022-11-16 11:12:56,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:12:56,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-16 11:12:56,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3843 transitions. [2022-11-16 11:12:56,658 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8618524332810047 [2022-11-16 11:12:56,658 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3843 transitions. [2022-11-16 11:12:56,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3843 transitions. [2022-11-16 11:12:56,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:12:56,661 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3843 transitions. [2022-11-16 11:12:56,671 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 549.0) internal successors, (3843), 7 states have internal predecessors, (3843), 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 11:12:56,682 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 637.0) internal successors, (5096), 8 states have internal predecessors, (5096), 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 11:12:56,686 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 637.0) internal successors, (5096), 8 states have internal predecessors, (5096), 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 11:12:56,687 INFO L175 Difference]: Start difference. First operand has 572 places, 582 transitions, 1298 flow. Second operand 7 states and 3843 transitions. [2022-11-16 11:12:56,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 577 places, 584 transitions, 1382 flow [2022-11-16 11:12:56,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 574 places, 584 transitions, 1370 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 11:12:56,700 INFO L231 Difference]: Finished difference. Result has 574 places, 581 transitions, 1294 flow [2022-11-16 11:12:56,702 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=1282, PETRI_DIFFERENCE_MINUEND_PLACES=568, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=581, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=575, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1294, PETRI_PLACES=574, PETRI_TRANSITIONS=581} [2022-11-16 11:12:56,703 INFO L288 CegarLoopForPetriNet]: 566 programPoint places, 8 predicate places. [2022-11-16 11:12:56,703 INFO L495 AbstractCegarLoop]: Abstraction has has 574 places, 581 transitions, 1294 flow [2022-11-16 11:12:56,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 545.6666666666666) internal successors, (3274), 6 states have internal predecessors, (3274), 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 11:12:56,705 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:12:56,705 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] [2022-11-16 11:12:56,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9a4943-f2e6-4bb4-9276-8cf509eb3c6c/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 11:12:56,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9a4943-f2e6-4bb4-9276-8cf509eb3c6c/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:12:56,912 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2022-11-16 11:12:56,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:56,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1915375658, now seen corresponding path program 1 times [2022-11-16 11:12:56,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:12:56,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549457949] [2022-11-16 11:12:56,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:12:56,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:12:56,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:57,096 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:12:57,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:12:57,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549457949] [2022-11-16 11:12:57,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549457949] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:12:57,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [324051509] [2022-11-16 11:12:57,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:12:57,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:12:57,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9a4943-f2e6-4bb4-9276-8cf509eb3c6c/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:12:57,100 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9a4943-f2e6-4bb4-9276-8cf509eb3c6c/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:12:57,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9a4943-f2e6-4bb4-9276-8cf509eb3c6c/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 11:12:57,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:57,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:12:57,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:12:57,404 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:12:57,404 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:12:57,477 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:12:57,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [324051509] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:12:57,478 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:12:57,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-16 11:12:57,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32676068] [2022-11-16 11:12:57,479 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:12:57,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:12:57,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:12:57,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:12:57,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:12:57,486 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 543 out of 637 [2022-11-16 11:12:57,503 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 574 places, 581 transitions, 1294 flow. Second operand has 10 states, 10 states have (on average 546.0) internal successors, (5460), 10 states have internal predecessors, (5460), 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 11:12:57,513 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:12:57,513 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 543 of 637 [2022-11-16 11:12:57,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:12:57,621 INFO L130 PetriNetUnfolder]: 0/153 cut-off events. [2022-11-16 11:12:57,621 INFO L131 PetriNetUnfolder]: For 23/23 co-relation queries the response was YES. [2022-11-16 11:12:57,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 153 events. 0/153 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 107 event pairs, 0 based on Foata normal form. 2/155 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2022-11-16 11:12:57,622 INFO L137 encePairwiseOnDemand]: 632/637 looper letters, 13 selfloop transitions, 7 changer transitions 0/147 dead transitions. [2022-11-16 11:12:57,623 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 147 transitions, 388 flow [2022-11-16 11:12:57,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 11:12:57,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-16 11:12:57,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 4909 transitions. [2022-11-16 11:12:57,636 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8562707134135705 [2022-11-16 11:12:57,636 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 4909 transitions. [2022-11-16 11:12:57,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 4909 transitions. [2022-11-16 11:12:57,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:12:57,640 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 4909 transitions. [2022-11-16 11:12:57,861 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 545.4444444444445) internal successors, (4909), 9 states have internal predecessors, (4909), 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 11:12:57,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 637.0) internal successors, (6370), 10 states have internal predecessors, (6370), 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 11:12:57,890 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 637.0) internal successors, (6370), 10 states have internal predecessors, (6370), 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 11:12:57,890 INFO L175 Difference]: Start difference. First operand has 574 places, 581 transitions, 1294 flow. Second operand 9 states and 4909 transitions. [2022-11-16 11:12:57,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 147 transitions, 388 flow [2022-11-16 11:12:57,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 147 transitions, 371 flow, removed 3 selfloop flow, removed 6 redundant places. [2022-11-16 11:12:57,895 INFO L231 Difference]: Finished difference. Result has 163 places, 142 transitions, 333 flow [2022-11-16 11:12:57,896 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=319, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=333, PETRI_PLACES=163, PETRI_TRANSITIONS=142} [2022-11-16 11:12:57,900 INFO L288 CegarLoopForPetriNet]: 566 programPoint places, -403 predicate places. [2022-11-16 11:12:57,901 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 142 transitions, 333 flow [2022-11-16 11:12:57,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 546.0) internal successors, (5460), 10 states have internal predecessors, (5460), 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 11:12:57,903 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:12:57,904 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:12:57,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9a4943-f2e6-4bb4-9276-8cf509eb3c6c/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:12:58,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9a4943-f2e6-4bb4-9276-8cf509eb3c6c/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-16 11:12:58,112 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2022-11-16 11:12:58,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:58,113 INFO L85 PathProgramCache]: Analyzing trace with hash -522110558, now seen corresponding path program 1 times [2022-11-16 11:12:58,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:12:58,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628176143] [2022-11-16 11:12:58,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:12:58,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:12:58,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:12:58,167 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:12:58,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:12:58,236 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:12:58,236 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 11:12:58,236 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 39 remaining) [2022-11-16 11:12:58,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 39 remaining) [2022-11-16 11:12:58,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 39 remaining) [2022-11-16 11:12:58,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 39 remaining) [2022-11-16 11:12:58,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 39 remaining) [2022-11-16 11:12:58,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 39 remaining) [2022-11-16 11:12:58,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 39 remaining) [2022-11-16 11:12:58,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 39 remaining) [2022-11-16 11:12:58,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 39 remaining) [2022-11-16 11:12:58,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 39 remaining) [2022-11-16 11:12:58,242 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 39 remaining) [2022-11-16 11:12:58,242 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 39 remaining) [2022-11-16 11:12:58,242 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 39 remaining) [2022-11-16 11:12:58,242 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 39 remaining) [2022-11-16 11:12:58,243 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 39 remaining) [2022-11-16 11:12:58,243 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 39 remaining) [2022-11-16 11:12:58,243 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 39 remaining) [2022-11-16 11:12:58,243 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 39 remaining) [2022-11-16 11:12:58,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 39 remaining) [2022-11-16 11:12:58,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 39 remaining) [2022-11-16 11:12:58,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 39 remaining) [2022-11-16 11:12:58,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 39 remaining) [2022-11-16 11:12:58,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 39 remaining) [2022-11-16 11:12:58,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 39 remaining) [2022-11-16 11:12:58,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 39 remaining) [2022-11-16 11:12:58,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 39 remaining) [2022-11-16 11:12:58,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 39 remaining) [2022-11-16 11:12:58,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 39 remaining) [2022-11-16 11:12:58,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 39 remaining) [2022-11-16 11:12:58,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 39 remaining) [2022-11-16 11:12:58,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 39 remaining) [2022-11-16 11:12:58,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 39 remaining) [2022-11-16 11:12:58,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 39 remaining) [2022-11-16 11:12:58,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 39 remaining) [2022-11-16 11:12:58,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 39 remaining) [2022-11-16 11:12:58,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 39 remaining) [2022-11-16 11:12:58,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 39 remaining) [2022-11-16 11:12:58,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 39 remaining) [2022-11-16 11:12:58,249 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 39 remaining) [2022-11-16 11:12:58,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:12:58,249 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-16 11:12:58,250 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-16 11:12:58,250 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-16 11:12:58,435 INFO L144 ThreadInstanceAdder]: Constructed 27 joinOtherThreadTransitions. [2022-11-16 11:12:58,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 769 places, 873 transitions, 1890 flow [2022-11-16 11:13:26,303 INFO L130 PetriNetUnfolder]: 8984/38697 cut-off events. [2022-11-16 11:13:26,303 INFO L131 PetriNetUnfolder]: For 7059/7268 co-relation queries the response was YES. [2022-11-16 11:13:29,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45871 conditions, 38697 events. 8984/38697 cut-off events. For 7059/7268 co-relation queries the response was YES. Maximal size of possible extension queue 539. Compared 461554 event pairs, 1024 based on Foata normal form. 0/31117 useless extension candidates. Maximal degree in co-relation 24023. Up to 2304 conditions per place. [2022-11-16 11:13:29,383 INFO L82 GeneralOperation]: Start removeDead. Operand has 769 places, 873 transitions, 1890 flow [2022-11-16 11:13:31,245 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 769 places, 873 transitions, 1890 flow [2022-11-16 11:13:31,249 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:13:31,250 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;@15094cca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:13:31,250 INFO L358 AbstractCegarLoop]: Starting to check reachability of 47 error locations. [2022-11-16 11:13:31,263 INFO L130 PetriNetUnfolder]: 4/95 cut-off events. [2022-11-16 11:13:31,263 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:13:31,263 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:13:31,263 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] [2022-11-16 11:13:31,264 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 44 more)] === [2022-11-16 11:13:31,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:13:31,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1982865408, now seen corresponding path program 1 times [2022-11-16 11:13:31,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:13:31,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551798258] [2022-11-16 11:13:31,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:13:31,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:13:31,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:13:31,377 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 11:13:31,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:13:31,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551798258] [2022-11-16 11:13:31,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551798258] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:13:31,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:13:31,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:13:31,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420189636] [2022-11-16 11:13:31,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:13:31,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:13:31,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:13:31,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:13:31,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:13:31,386 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 741 out of 873 [2022-11-16 11:13:31,390 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 769 places, 873 transitions, 1890 flow. Second operand has 4 states, 4 states have (on average 742.75) internal successors, (2971), 4 states have internal predecessors, (2971), 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 11:13:31,391 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:13:31,391 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 741 of 873 [2022-11-16 11:13:31,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand