./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c --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_d40c6017-3497-4e1d-8918-e778fbcb149f/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40c6017-3497-4e1d-8918-e778fbcb149f/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_d40c6017-3497-4e1d-8918-e778fbcb149f/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40c6017-3497-4e1d-8918-e778fbcb149f/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40c6017-3497-4e1d-8918-e778fbcb149f/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_d40c6017-3497-4e1d-8918-e778fbcb149f/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 83dad307cba3d7607e136206fd160e874fd8a32bc88cbef3e5973f117a7651cc --- 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 12:06:38,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:06:38,260 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:06:38,311 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:06:38,311 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:06:38,317 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:06:38,321 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:06:38,324 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:06:38,330 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:06:38,331 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:06:38,332 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:06:38,333 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:06:38,334 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:06:38,338 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:06:38,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:06:38,344 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:06:38,346 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:06:38,354 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:06:38,356 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:06:38,361 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:06:38,368 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:06:38,370 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:06:38,371 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:06:38,373 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:06:38,378 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:06:38,381 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:06:38,382 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:06:38,383 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:06:38,385 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:06:38,387 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:06:38,387 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:06:38,389 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:06:38,391 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:06:38,393 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:06:38,395 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:06:38,396 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:06:38,397 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:06:38,397 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:06:38,398 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:06:38,399 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:06:38,400 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:06:38,401 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40c6017-3497-4e1d-8918-e778fbcb149f/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-16 12:06:38,457 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:06:38,461 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:06:38,462 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:06:38,462 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:06:38,463 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:06:38,464 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:06:38,465 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:06:38,465 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:06:38,465 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:06:38,466 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:06:38,467 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:06:38,468 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:06:38,468 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:06:38,468 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:06:38,468 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:06:38,469 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:06:38,469 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:06:38,469 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:06:38,470 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 12:06:38,470 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:06:38,470 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:06:38,470 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:06:38,471 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:06:38,471 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:06:38,471 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:06:38,472 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:06:38,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:06:38,472 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:06:38,473 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:06:38,473 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:06:38,476 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:06:38,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:06:38,476 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:06:38,477 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:06:38,477 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:06:38,477 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_d40c6017-3497-4e1d-8918-e778fbcb149f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40c6017-3497-4e1d-8918-e778fbcb149f/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83dad307cba3d7607e136206fd160e874fd8a32bc88cbef3e5973f117a7651cc [2022-11-16 12:06:38,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:06:38,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:06:38,825 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:06:38,826 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:06:38,827 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:06:38,829 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40c6017-3497-4e1d-8918-e778fbcb149f/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c [2022-11-16 12:06:38,938 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40c6017-3497-4e1d-8918-e778fbcb149f/bin/uautomizer-tPACEb0tL8/data/fff3dec44/d9cf4343225f4f228ed168246b4f17c2/FLAG7d954589d [2022-11-16 12:06:39,507 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:06:39,513 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40c6017-3497-4e1d-8918-e778fbcb149f/sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c [2022-11-16 12:06:39,528 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40c6017-3497-4e1d-8918-e778fbcb149f/bin/uautomizer-tPACEb0tL8/data/fff3dec44/d9cf4343225f4f228ed168246b4f17c2/FLAG7d954589d [2022-11-16 12:06:39,792 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40c6017-3497-4e1d-8918-e778fbcb149f/bin/uautomizer-tPACEb0tL8/data/fff3dec44/d9cf4343225f4f228ed168246b4f17c2 [2022-11-16 12:06:39,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:06:39,799 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:06:39,801 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:06:39,801 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:06:39,805 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:06:39,806 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:06:39" (1/1) ... [2022-11-16 12:06:39,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70ade11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:39, skipping insertion in model container [2022-11-16 12:06:39,809 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:06:39" (1/1) ... [2022-11-16 12:06:39,818 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:06:39,867 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:06:40,342 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_d40c6017-3497-4e1d-8918-e778fbcb149f/sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c[12821,12834] [2022-11-16 12:06:40,352 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:06:40,360 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:06:40,421 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_d40c6017-3497-4e1d-8918-e778fbcb149f/sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c[12821,12834] [2022-11-16 12:06:40,424 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:06:40,439 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:06:40,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:40 WrapperNode [2022-11-16 12:06:40,440 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:06:40,441 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:06:40,441 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:06:40,441 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:06:40,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:40" (1/1) ... [2022-11-16 12:06:40,489 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:40" (1/1) ... [2022-11-16 12:06:40,568 INFO L138 Inliner]: procedures = 25, calls = 307, calls flagged for inlining = 69, calls inlined = 97, statements flattened = 1656 [2022-11-16 12:06:40,568 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:06:40,569 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:06:40,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:06:40,569 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:06:40,579 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:40" (1/1) ... [2022-11-16 12:06:40,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:40" (1/1) ... [2022-11-16 12:06:40,597 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:40" (1/1) ... [2022-11-16 12:06:40,604 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:40" (1/1) ... [2022-11-16 12:06:40,682 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:40" (1/1) ... [2022-11-16 12:06:40,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:40" (1/1) ... [2022-11-16 12:06:40,718 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:40" (1/1) ... [2022-11-16 12:06:40,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:40" (1/1) ... [2022-11-16 12:06:40,733 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:06:40,734 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:06:40,734 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:06:40,745 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:06:40,747 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:40" (1/1) ... [2022-11-16 12:06:40,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:06:40,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40c6017-3497-4e1d-8918-e778fbcb149f/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:06:40,784 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40c6017-3497-4e1d-8918-e778fbcb149f/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:06:40,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40c6017-3497-4e1d-8918-e778fbcb149f/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:06:40,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:06:40,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:06:40,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:06:40,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:06:40,834 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 12:06:40,834 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 12:06:40,835 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 12:06:40,835 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 12:06:40,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:06:40,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 12:06:40,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 12:06:40,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 12:06:40,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:06:40,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:06:40,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:06:40,839 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 12:06:41,062 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:06:41,065 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:06:43,616 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:06:47,045 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:06:47,045 INFO L300 CfgBuilder]: Removed 12 assume(true) statements. [2022-11-16 12:06:47,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:06:47 BoogieIcfgContainer [2022-11-16 12:06:47,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:06:47,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:06:47,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:06:47,056 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:06:47,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:06:39" (1/3) ... [2022-11-16 12:06:47,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@acb83a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:06:47, skipping insertion in model container [2022-11-16 12:06:47,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:06:40" (2/3) ... [2022-11-16 12:06:47,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@acb83a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:06:47, skipping insertion in model container [2022-11-16 12:06:47,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:06:47" (3/3) ... [2022-11-16 12:06:47,059 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-poker-hand-symm.wvr.c [2022-11-16 12:06:47,075 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:06:47,085 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:06:47,086 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 70 error locations. [2022-11-16 12:06:47,086 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:06:47,980 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 12:06:48,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 517 places, 563 transitions, 1142 flow [2022-11-16 12:06:48,369 INFO L130 PetriNetUnfolder]: 53/561 cut-off events. [2022-11-16 12:06:48,369 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 12:06:48,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 570 conditions, 561 events. 53/561 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 981 event pairs, 0 based on Foata normal form. 0/438 useless extension candidates. Maximal degree in co-relation 460. Up to 7 conditions per place. [2022-11-16 12:06:48,378 INFO L82 GeneralOperation]: Start removeDead. Operand has 517 places, 563 transitions, 1142 flow [2022-11-16 12:06:48,390 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 498 places, 543 transitions, 1098 flow [2022-11-16 12:06:48,400 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:06:48,407 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;@48ffabde, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:06:48,408 INFO L358 AbstractCegarLoop]: Starting to check reachability of 124 error locations. [2022-11-16 12:06:48,418 INFO L130 PetriNetUnfolder]: 3/69 cut-off events. [2022-11-16 12:06:48,418 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:06:48,418 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:06:48,419 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] [2022-11-16 12:06:48,420 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-16 12:06:48,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:06:48,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1034571749, now seen corresponding path program 1 times [2022-11-16 12:06:48,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:06:48,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105312232] [2022-11-16 12:06:48,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:06:48,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:06:48,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:06:49,040 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 12:06:49,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:06:49,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105312232] [2022-11-16 12:06:49,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105312232] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:06:49,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:06:49,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:06:49,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28207413] [2022-11-16 12:06:49,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:06:49,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:06:49,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:06:49,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:06:49,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:06:49,116 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 563 [2022-11-16 12:06:49,127 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 498 places, 543 transitions, 1098 flow. Second operand has 4 states, 4 states have (on average 358.5) internal successors, (1434), 4 states have internal predecessors, (1434), 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 12:06:49,128 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:06:49,128 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 563 [2022-11-16 12:06:49,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:06:54,464 INFO L130 PetriNetUnfolder]: 1599/4216 cut-off events. [2022-11-16 12:06:54,465 INFO L131 PetriNetUnfolder]: For 176/176 co-relation queries the response was YES. [2022-11-16 12:06:54,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7071 conditions, 4216 events. 1599/4216 cut-off events. For 176/176 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 35274 event pairs, 880 based on Foata normal form. 196/2476 useless extension candidates. Maximal degree in co-relation 3027. Up to 1380 conditions per place. [2022-11-16 12:06:54,496 INFO L137 encePairwiseOnDemand]: 460/563 looper letters, 246 selfloop transitions, 39 changer transitions 20/626 dead transitions. [2022-11-16 12:06:54,496 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 482 places, 626 transitions, 1850 flow [2022-11-16 12:06:54,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:06:54,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 12:06:54,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2168 transitions. [2022-11-16 12:06:54,517 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7701598579040853 [2022-11-16 12:06:54,518 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2168 transitions. [2022-11-16 12:06:54,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2168 transitions. [2022-11-16 12:06:54,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:06:54,524 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2168 transitions. [2022-11-16 12:06:54,535 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 433.6) internal successors, (2168), 5 states have internal predecessors, (2168), 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 12:06:54,549 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 563.0) internal successors, (3378), 6 states have internal predecessors, (3378), 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 12:06:54,552 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 563.0) internal successors, (3378), 6 states have internal predecessors, (3378), 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 12:06:54,554 INFO L175 Difference]: Start difference. First operand has 498 places, 543 transitions, 1098 flow. Second operand 5 states and 2168 transitions. [2022-11-16 12:06:54,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 482 places, 626 transitions, 1850 flow [2022-11-16 12:06:54,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 478 places, 626 transitions, 1834 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 12:06:54,576 INFO L231 Difference]: Finished difference. Result has 481 places, 507 transitions, 1244 flow [2022-11-16 12:06:54,579 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=563, PETRI_DIFFERENCE_MINUEND_FLOW=994, PETRI_DIFFERENCE_MINUEND_PLACES=474, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=495, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=456, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1244, PETRI_PLACES=481, PETRI_TRANSITIONS=507} [2022-11-16 12:06:54,583 INFO L288 CegarLoopForPetriNet]: 498 programPoint places, -17 predicate places. [2022-11-16 12:06:54,583 INFO L495 AbstractCegarLoop]: Abstraction has has 481 places, 507 transitions, 1244 flow [2022-11-16 12:06:54,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 358.5) internal successors, (1434), 4 states have internal predecessors, (1434), 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 12:06:54,585 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:06:54,585 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-16 12:06:54,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:06:54,586 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-16 12:06:54,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:06:54,587 INFO L85 PathProgramCache]: Analyzing trace with hash 760478115, now seen corresponding path program 1 times [2022-11-16 12:06:54,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:06:54,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015739681] [2022-11-16 12:06:54,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:06:54,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:06:54,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:06:54,878 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:06:54,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:06:54,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015739681] [2022-11-16 12:06:54,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015739681] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:06:54,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [720717472] [2022-11-16 12:06:54,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:06:54,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:06:54,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40c6017-3497-4e1d-8918-e778fbcb149f/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:06:54,889 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40c6017-3497-4e1d-8918-e778fbcb149f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:06:54,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40c6017-3497-4e1d-8918-e778fbcb149f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 12:06:55,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:06:55,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 12:06:55,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:06:55,937 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:06:55,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:06:56,013 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:06:56,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [720717472] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:06:56,014 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:06:56,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-16 12:06:56,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928902775] [2022-11-16 12:06:56,016 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:06:56,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:06:56,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:06:56,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:06:56,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:06:56,027 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 563 [2022-11-16 12:06:56,034 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 481 places, 507 transitions, 1244 flow. Second operand has 12 states, 12 states have (on average 359.6666666666667) internal successors, (4316), 12 states have internal predecessors, (4316), 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 12:06:56,034 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:06:56,035 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 563 [2022-11-16 12:06:56,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:07:06,447 INFO L130 PetriNetUnfolder]: 3996/10219 cut-off events. [2022-11-16 12:07:06,448 INFO L131 PetriNetUnfolder]: For 228/228 co-relation queries the response was YES. [2022-11-16 12:07:06,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17332 conditions, 10219 events. 3996/10219 cut-off events. For 228/228 co-relation queries the response was YES. Maximal size of possible extension queue 421. Compared 94773 event pairs, 2200 based on Foata normal form. 24/5483 useless extension candidates. Maximal degree in co-relation 12724. Up to 1360 conditions per place. [2022-11-16 12:07:06,536 INFO L137 encePairwiseOnDemand]: 500/563 looper letters, 519 selfloop transitions, 172 changer transitions 0/1012 dead transitions. [2022-11-16 12:07:06,536 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 1012 transitions, 3866 flow [2022-11-16 12:07:06,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 12:07:06,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-16 12:07:06,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 7141 transitions. [2022-11-16 12:07:06,559 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7046575883165581 [2022-11-16 12:07:06,560 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 7141 transitions. [2022-11-16 12:07:06,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 7141 transitions. [2022-11-16 12:07:06,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:07:06,566 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 7141 transitions. [2022-11-16 12:07:06,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 396.72222222222223) internal successors, (7141), 18 states have internal predecessors, (7141), 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 12:07:06,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 563.0) internal successors, (10697), 19 states have internal predecessors, (10697), 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 12:07:06,625 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 563.0) internal successors, (10697), 19 states have internal predecessors, (10697), 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 12:07:06,626 INFO L175 Difference]: Start difference. First operand has 481 places, 507 transitions, 1244 flow. Second operand 18 states and 7141 transitions. [2022-11-16 12:07:06,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 1012 transitions, 3866 flow [2022-11-16 12:07:06,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 478 places, 1012 transitions, 3843 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:07:06,657 INFO L231 Difference]: Finished difference. Result has 482 places, 624 transitions, 2251 flow [2022-11-16 12:07:06,658 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=563, PETRI_DIFFERENCE_MINUEND_FLOW=1221, PETRI_DIFFERENCE_MINUEND_PLACES=461, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=507, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2251, PETRI_PLACES=482, PETRI_TRANSITIONS=624} [2022-11-16 12:07:06,659 INFO L288 CegarLoopForPetriNet]: 498 programPoint places, -16 predicate places. [2022-11-16 12:07:06,660 INFO L495 AbstractCegarLoop]: Abstraction has has 482 places, 624 transitions, 2251 flow [2022-11-16 12:07:06,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 359.6666666666667) internal successors, (4316), 12 states have internal predecessors, (4316), 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 12:07:06,663 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:07:06,664 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-16 12:07:06,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40c6017-3497-4e1d-8918-e778fbcb149f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:07:06,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40c6017-3497-4e1d-8918-e778fbcb149f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:07:06,875 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-16 12:07:06,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:07:06,876 INFO L85 PathProgramCache]: Analyzing trace with hash 2099990545, now seen corresponding path program 1 times [2022-11-16 12:07:06,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:07:06,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814499194] [2022-11-16 12:07:06,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:07:06,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:07:06,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:07:07,053 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:07:07,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:07:07,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814499194] [2022-11-16 12:07:07,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814499194] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:07:07,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019969553] [2022-11-16 12:07:07,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:07:07,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:07:07,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40c6017-3497-4e1d-8918-e778fbcb149f/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:07:07,056 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40c6017-3497-4e1d-8918-e778fbcb149f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:07:07,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40c6017-3497-4e1d-8918-e778fbcb149f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 12:07:07,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:07:07,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 12:07:07,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:07:07,962 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:07:07,963 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:07:07,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2019969553] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:07:07,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:07:07,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-16 12:07:07,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752017471] [2022-11-16 12:07:07,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:07:07,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:07:07,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:07:07,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:07:07,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:07:07,969 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 563 [2022-11-16 12:07:07,972 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 482 places, 624 transitions, 2251 flow. Second operand has 6 states, 6 states have (on average 359.3333333333333) internal successors, (2156), 6 states have internal predecessors, (2156), 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 12:07:07,972 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:07:07,973 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 563 [2022-11-16 12:07:07,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:07:15,868 INFO L130 PetriNetUnfolder]: 3996/10187 cut-off events. [2022-11-16 12:07:15,869 INFO L131 PetriNetUnfolder]: For 670/670 co-relation queries the response was YES. [2022-11-16 12:07:15,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17483 conditions, 10187 events. 3996/10187 cut-off events. For 670/670 co-relation queries the response was YES. Maximal size of possible extension queue 420. Compared 94335 event pairs, 2200 based on Foata normal form. 32/5459 useless extension candidates. Maximal degree in co-relation 13865. Up to 5228 conditions per place. [2022-11-16 12:07:15,936 INFO L137 encePairwiseOnDemand]: 516/563 looper letters, 247 selfloop transitions, 123 changer transitions 0/691 dead transitions. [2022-11-16 12:07:15,936 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 691 transitions, 2992 flow [2022-11-16 12:07:15,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:07:15,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-16 12:07:15,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2784 transitions. [2022-11-16 12:07:15,945 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7064196904339001 [2022-11-16 12:07:15,946 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2784 transitions. [2022-11-16 12:07:15,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2784 transitions. [2022-11-16 12:07:15,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:07:15,948 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2784 transitions. [2022-11-16 12:07:15,955 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 397.7142857142857) internal successors, (2784), 7 states have internal predecessors, (2784), 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 12:07:15,965 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 563.0) internal successors, (4504), 8 states have internal predecessors, (4504), 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 12:07:15,967 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 563.0) internal successors, (4504), 8 states have internal predecessors, (4504), 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 12:07:15,968 INFO L175 Difference]: Start difference. First operand has 482 places, 624 transitions, 2251 flow. Second operand 7 states and 2784 transitions. [2022-11-16 12:07:15,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 691 transitions, 2992 flow [2022-11-16 12:07:15,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 471 places, 691 transitions, 2666 flow, removed 116 selfloop flow, removed 5 redundant places. [2022-11-16 12:07:15,990 INFO L231 Difference]: Finished difference. Result has 471 places, 592 transitions, 1955 flow [2022-11-16 12:07:15,991 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=563, PETRI_DIFFERENCE_MINUEND_FLOW=1709, PETRI_DIFFERENCE_MINUEND_PLACES=465, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=592, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=123, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=469, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1955, PETRI_PLACES=471, PETRI_TRANSITIONS=592} [2022-11-16 12:07:15,992 INFO L288 CegarLoopForPetriNet]: 498 programPoint places, -27 predicate places. [2022-11-16 12:07:15,992 INFO L495 AbstractCegarLoop]: Abstraction has has 471 places, 592 transitions, 1955 flow [2022-11-16 12:07:15,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 359.3333333333333) internal successors, (2156), 6 states have internal predecessors, (2156), 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 12:07:15,994 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:07:15,994 INFO L209 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:07:16,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40c6017-3497-4e1d-8918-e778fbcb149f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 12:07:16,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40c6017-3497-4e1d-8918-e778fbcb149f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:07:16,204 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-16 12:07:16,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:07:16,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1273459867, now seen corresponding path program 2 times [2022-11-16 12:07:16,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:07:16,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601800618] [2022-11-16 12:07:16,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:07:16,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:07:16,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:07:16,574 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:07:16,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:07:16,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601800618] [2022-11-16 12:07:16,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601800618] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:07:16,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [305216413] [2022-11-16 12:07:16,579 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:07:16,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:07:16,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40c6017-3497-4e1d-8918-e778fbcb149f/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:07:16,581 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40c6017-3497-4e1d-8918-e778fbcb149f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:07:16,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40c6017-3497-4e1d-8918-e778fbcb149f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 12:07:17,504 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 12:07:17,504 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:07:17,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 12:07:17,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:07:17,666 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-11-16 12:07:17,667 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:07:17,882 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-11-16 12:07:17,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [305216413] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:07:17,883 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:07:17,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5] total 17 [2022-11-16 12:07:17,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969304514] [2022-11-16 12:07:17,884 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:07:17,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:07:17,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:07:17,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:07:17,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:07:17,893 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 563 [2022-11-16 12:07:17,900 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 592 transitions, 1955 flow. Second operand has 18 states, 18 states have (on average 321.0) internal successors, (5778), 18 states have internal predecessors, (5778), 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 12:07:17,901 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:07:17,901 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 563 [2022-11-16 12:07:17,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:07:31,087 INFO L130 PetriNetUnfolder]: 5588/14015 cut-off events. [2022-11-16 12:07:31,087 INFO L131 PetriNetUnfolder]: For 692/692 co-relation queries the response was YES. [2022-11-16 12:07:31,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23994 conditions, 14015 events. 5588/14015 cut-off events. For 692/692 co-relation queries the response was YES. Maximal size of possible extension queue 420. Compared 133342 event pairs, 3080 based on Foata normal form. 10/7367 useless extension candidates. Maximal degree in co-relation 19075. Up to 1288 conditions per place. [2022-11-16 12:07:31,175 INFO L137 encePairwiseOnDemand]: 496/563 looper letters, 683 selfloop transitions, 210 changer transitions 0/1174 dead transitions. [2022-11-16 12:07:31,175 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 508 places, 1174 transitions, 5007 flow [2022-11-16 12:07:31,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-16 12:07:31,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2022-11-16 12:07:31,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 15485 transitions. [2022-11-16 12:07:31,214 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5979226195072979 [2022-11-16 12:07:31,214 INFO L72 ComplementDD]: Start complementDD. Operand 46 states and 15485 transitions. [2022-11-16 12:07:31,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 15485 transitions. [2022-11-16 12:07:31,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:07:31,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 46 states and 15485 transitions. [2022-11-16 12:07:31,257 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 47 states, 46 states have (on average 336.6304347826087) internal successors, (15485), 46 states have internal predecessors, (15485), 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 12:07:31,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 47 states, 47 states have (on average 563.0) internal successors, (26461), 47 states have internal predecessors, (26461), 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 12:07:31,315 INFO L81 ComplementDD]: Finished complementDD. Result has 47 states, 47 states have (on average 563.0) internal successors, (26461), 47 states have internal predecessors, (26461), 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 12:07:31,316 INFO L175 Difference]: Start difference. First operand has 471 places, 592 transitions, 1955 flow. Second operand 46 states and 15485 transitions. [2022-11-16 12:07:31,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 508 places, 1174 transitions, 5007 flow [2022-11-16 12:07:31,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 499 places, 1174 transitions, 4769 flow, removed 0 selfloop flow, removed 9 redundant places. [2022-11-16 12:07:31,344 INFO L231 Difference]: Finished difference. Result has 501 places, 631 transitions, 2296 flow [2022-11-16 12:07:31,345 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=563, PETRI_DIFFERENCE_MINUEND_FLOW=1657, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=584, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=167, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=46, PETRI_FLOW=2296, PETRI_PLACES=501, PETRI_TRANSITIONS=631} [2022-11-16 12:07:31,347 INFO L288 CegarLoopForPetriNet]: 498 programPoint places, 3 predicate places. [2022-11-16 12:07:31,347 INFO L495 AbstractCegarLoop]: Abstraction has has 501 places, 631 transitions, 2296 flow [2022-11-16 12:07:31,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 321.0) internal successors, (5778), 18 states have internal predecessors, (5778), 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 12:07:31,350 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:07:31,350 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:07:31,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40c6017-3497-4e1d-8918-e778fbcb149f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-16 12:07:31,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40c6017-3497-4e1d-8918-e778fbcb149f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:07:31,559 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-16 12:07:31,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:07:31,559 INFO L85 PathProgramCache]: Analyzing trace with hash 974030273, now seen corresponding path program 1 times [2022-11-16 12:07:31,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:07:31,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744969817] [2022-11-16 12:07:31,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:07:31,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:07:31,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:07:31,943 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 12:07:31,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:07:31,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744969817] [2022-11-16 12:07:31,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744969817] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:07:31,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:07:31,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:07:31,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095516550] [2022-11-16 12:07:31,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:07:31,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:07:31,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:07:31,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:07:31,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:07:31,949 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 563 [2022-11-16 12:07:31,951 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 501 places, 631 transitions, 2296 flow. Second operand has 5 states, 5 states have (on average 370.2) internal successors, (1851), 5 states have internal predecessors, (1851), 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 12:07:31,951 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:07:31,953 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 563 [2022-11-16 12:07:31,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:07:40,716 INFO L130 PetriNetUnfolder]: 4793/12124 cut-off events. [2022-11-16 12:07:40,716 INFO L131 PetriNetUnfolder]: For 877/877 co-relation queries the response was YES. [2022-11-16 12:07:40,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20800 conditions, 12124 events. 4793/12124 cut-off events. For 877/877 co-relation queries the response was YES. Maximal size of possible extension queue 420. Compared 113432 event pairs, 2640 based on Foata normal form. 4/6462 useless extension candidates. Maximal degree in co-relation 19586. Up to 7779 conditions per place. [2022-11-16 12:07:40,786 INFO L137 encePairwiseOnDemand]: 541/563 looper letters, 251 selfloop transitions, 36 changer transitions 0/634 dead transitions. [2022-11-16 12:07:40,786 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 506 places, 634 transitions, 2865 flow [2022-11-16 12:07:40,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:07:40,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:07:40,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2317 transitions. [2022-11-16 12:07:40,792 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6859088217880402 [2022-11-16 12:07:40,792 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2317 transitions. [2022-11-16 12:07:40,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2317 transitions. [2022-11-16 12:07:40,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:07:40,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2317 transitions. [2022-11-16 12:07:40,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 386.1666666666667) internal successors, (2317), 6 states have internal predecessors, (2317), 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 12:07:40,805 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 563.0) internal successors, (3941), 7 states have internal predecessors, (3941), 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 12:07:40,807 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 563.0) internal successors, (3941), 7 states have internal predecessors, (3941), 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 12:07:40,807 INFO L175 Difference]: Start difference. First operand has 501 places, 631 transitions, 2296 flow. Second operand 6 states and 2317 transitions. [2022-11-16 12:07:40,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 506 places, 634 transitions, 2865 flow [2022-11-16 12:07:40,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 490 places, 634 transitions, 2440 flow, removed 25 selfloop flow, removed 16 redundant places. [2022-11-16 12:07:40,824 INFO L231 Difference]: Finished difference. Result has 491 places, 626 transitions, 1926 flow [2022-11-16 12:07:40,825 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=563, PETRI_DIFFERENCE_MINUEND_FLOW=1842, PETRI_DIFFERENCE_MINUEND_PLACES=485, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=626, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=590, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1926, PETRI_PLACES=491, PETRI_TRANSITIONS=626} [2022-11-16 12:07:40,828 INFO L288 CegarLoopForPetriNet]: 498 programPoint places, -7 predicate places. [2022-11-16 12:07:40,828 INFO L495 AbstractCegarLoop]: Abstraction has has 491 places, 626 transitions, 1926 flow [2022-11-16 12:07:40,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 370.2) internal successors, (1851), 5 states have internal predecessors, (1851), 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 12:07:40,830 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:07:40,830 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:07:40,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:07:40,831 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-16 12:07:40,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:07:40,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1238238652, now seen corresponding path program 1 times [2022-11-16 12:07:40,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:07:40,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684041094] [2022-11-16 12:07:40,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:07:40,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:07:40,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:07:41,210 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-16 12:07:41,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:07:41,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684041094] [2022-11-16 12:07:41,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684041094] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:07:41,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:07:41,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:07:41,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237502895] [2022-11-16 12:07:41,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:07:41,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:07:41,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:07:41,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:07:41,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:07:41,222 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 563 [2022-11-16 12:07:41,224 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 491 places, 626 transitions, 1926 flow. Second operand has 5 states, 5 states have (on average 373.4) internal successors, (1867), 5 states have internal predecessors, (1867), 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 12:07:41,224 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:07:41,225 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 563 [2022-11-16 12:07:41,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand