./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-lit/qw2004-2b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d3aa0e-89e0-4658-a0d7-cee4c1a1c95d/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d3aa0e-89e0-4658-a0d7-cee4c1a1c95d/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_97d3aa0e-89e0-4658-a0d7-cee4c1a1c95d/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d3aa0e-89e0-4658-a0d7-cee4c1a1c95d/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-lit/qw2004-2b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d3aa0e-89e0-4658-a0d7-cee4c1a1c95d/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_97d3aa0e-89e0-4658-a0d7-cee4c1a1c95d/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 f17f6182d2330561fe6717b6a061d0dded698483f9e32b37a3b36e1144855a29 --- 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 11:11:55,331 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:11:55,334 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:11:55,386 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:11:55,389 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:11:55,393 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:11:55,396 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:11:55,402 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:11:55,406 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:11:55,410 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:11:55,412 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:11:55,415 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:11:55,417 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:11:55,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:11:55,424 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:11:55,426 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:11:55,427 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:11:55,428 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:11:55,430 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:11:55,433 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:11:55,435 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:11:55,439 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:11:55,440 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:11:55,442 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:11:55,446 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:11:55,446 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:11:55,447 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:11:55,457 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:11:55,458 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:11:55,459 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:11:55,460 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:11:55,461 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:11:55,463 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:11:55,466 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:11:55,468 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:11:55,469 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:11:55,470 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:11:55,470 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:11:55,471 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:11:55,472 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:11:55,473 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:11:55,474 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d3aa0e-89e0-4658-a0d7-cee4c1a1c95d/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-16 11:11:55,545 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:11:55,546 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:11:55,547 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:11:55,547 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:11:55,548 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:11:55,549 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:11:55,550 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:11:55,550 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:11:55,550 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:11:55,551 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:11:55,552 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:11:55,553 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:11:55,553 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:11:55,554 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:11:55,554 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:11:55,554 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:11:55,555 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:11:55,555 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:11:55,555 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 11:11:55,556 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:11:55,556 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:11:55,557 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:11:55,557 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:11:55,557 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:11:55,558 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:11:55,558 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:11:55,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:11:55,559 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:11:55,559 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:11:55,560 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:11:55,560 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:11:55,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:11:55,561 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:11:55,561 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:11:55,562 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:11:55,562 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_97d3aa0e-89e0-4658-a0d7-cee4c1a1c95d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d3aa0e-89e0-4658-a0d7-cee4c1a1c95d/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f17f6182d2330561fe6717b6a061d0dded698483f9e32b37a3b36e1144855a29 [2022-11-16 11:11:55,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:11:56,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:11:56,006 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:11:56,008 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:11:56,009 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:11:56,010 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d3aa0e-89e0-4658-a0d7-cee4c1a1c95d/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/pthread-lit/qw2004-2b.i [2022-11-16 11:11:56,091 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d3aa0e-89e0-4658-a0d7-cee4c1a1c95d/bin/uautomizer-tPACEb0tL8/data/3f0705fff/863b380bf79141dfad7744b0d0d84870/FLAG8dabe19d6 [2022-11-16 11:11:56,715 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:11:56,727 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d3aa0e-89e0-4658-a0d7-cee4c1a1c95d/sv-benchmarks/c/pthread-lit/qw2004-2b.i [2022-11-16 11:11:56,756 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d3aa0e-89e0-4658-a0d7-cee4c1a1c95d/bin/uautomizer-tPACEb0tL8/data/3f0705fff/863b380bf79141dfad7744b0d0d84870/FLAG8dabe19d6 [2022-11-16 11:11:57,039 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d3aa0e-89e0-4658-a0d7-cee4c1a1c95d/bin/uautomizer-tPACEb0tL8/data/3f0705fff/863b380bf79141dfad7744b0d0d84870 [2022-11-16 11:11:57,042 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:11:57,043 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:11:57,045 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:11:57,045 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:11:57,054 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:11:57,055 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:11:57" (1/1) ... [2022-11-16 11:11:57,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5de76052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:11:57, skipping insertion in model container [2022-11-16 11:11:57,059 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:11:57" (1/1) ... [2022-11-16 11:11:57,070 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:11:57,143 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:11:57,557 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_97d3aa0e-89e0-4658-a0d7-cee4c1a1c95d/sv-benchmarks/c/pthread-lit/qw2004-2b.i[30003,30016] [2022-11-16 11:11:57,577 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:11:57,587 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:11:57,625 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_97d3aa0e-89e0-4658-a0d7-cee4c1a1c95d/sv-benchmarks/c/pthread-lit/qw2004-2b.i[30003,30016] [2022-11-16 11:11:57,633 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:11:57,672 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:11:57,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:11:57 WrapperNode [2022-11-16 11:11:57,673 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:11:57,674 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:11:57,674 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:11:57,675 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:11:57,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:11:57" (1/1) ... [2022-11-16 11:11:57,726 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:11:57" (1/1) ... [2022-11-16 11:11:57,768 INFO L138 Inliner]: procedures = 175, calls = 36, calls flagged for inlining = 9, calls inlined = 10, statements flattened = 123 [2022-11-16 11:11:57,769 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:11:57,770 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:11:57,770 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:11:57,771 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:11:57,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:11:57" (1/1) ... [2022-11-16 11:11:57,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:11:57" (1/1) ... [2022-11-16 11:11:57,801 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:11:57" (1/1) ... [2022-11-16 11:11:57,802 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:11:57" (1/1) ... [2022-11-16 11:11:57,806 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:11:57" (1/1) ... [2022-11-16 11:11:57,822 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:11:57" (1/1) ... [2022-11-16 11:11:57,824 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:11:57" (1/1) ... [2022-11-16 11:11:57,825 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:11:57" (1/1) ... [2022-11-16 11:11:57,828 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:11:57,829 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:11:57,829 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:11:57,830 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:11:57,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:11:57" (1/1) ... [2022-11-16 11:11:57,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:11:57,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d3aa0e-89e0-4658-a0d7-cee4c1a1c95d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:11:57,877 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d3aa0e-89e0-4658-a0d7-cee4c1a1c95d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:11:57,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d3aa0e-89e0-4658-a0d7-cee4c1a1c95d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:11:57,943 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpStop [2022-11-16 11:11:57,943 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpStop [2022-11-16 11:11:57,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:11:57,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 11:11:57,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:11:57,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:11:57,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:11:57,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:11:57,945 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 11:11:57,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:11:57,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:11:57,947 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 11:11:58,095 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:11:58,097 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:11:58,388 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:11:58,540 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:11:58,540 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:11:58,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:11:58 BoogieIcfgContainer [2022-11-16 11:11:58,544 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:11:58,546 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:11:58,546 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:11:58,556 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:11:58,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:11:57" (1/3) ... [2022-11-16 11:11:58,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@507e081e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:11:58, skipping insertion in model container [2022-11-16 11:11:58,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:11:57" (2/3) ... [2022-11-16 11:11:58,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@507e081e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:11:58, skipping insertion in model container [2022-11-16 11:11:58,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:11:58" (3/3) ... [2022-11-16 11:11:58,560 INFO L112 eAbstractionObserver]: Analyzing ICFG qw2004-2b.i [2022-11-16 11:11:58,579 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:11:58,592 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:11:58,593 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-16 11:11:58,593 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:11:58,720 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 11:11:58,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 123 places, 125 transitions, 255 flow [2022-11-16 11:11:58,990 INFO L130 PetriNetUnfolder]: 6/124 cut-off events. [2022-11-16 11:11:58,995 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:11:59,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 124 events. 6/124 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 145 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2022-11-16 11:11:59,003 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 125 transitions, 255 flow [2022-11-16 11:11:59,013 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 124 transitions, 251 flow [2022-11-16 11:11:59,040 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:11:59,052 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;@2e917d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:11:59,052 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-11-16 11:11:59,082 INFO L130 PetriNetUnfolder]: 0/41 cut-off events. [2022-11-16 11:11:59,085 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:11:59,086 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:11:59,087 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] [2022-11-16 11:11:59,088 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-16 11:11:59,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:11:59,096 INFO L85 PathProgramCache]: Analyzing trace with hash 2125580475, now seen corresponding path program 1 times [2022-11-16 11:11:59,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:11:59,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231478849] [2022-11-16 11:11:59,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:11:59,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:11:59,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:11:59,537 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 11:11:59,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:11:59,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231478849] [2022-11-16 11:11:59,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231478849] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:11:59,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:11:59,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:11:59,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106299026] [2022-11-16 11:11:59,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:11:59,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:11:59,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:11:59,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:11:59,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:11:59,598 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 125 [2022-11-16 11:11:59,603 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 124 transitions, 251 flow. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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 11:11:59,603 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:11:59,603 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 125 [2022-11-16 11:11:59,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:11:59,731 INFO L130 PetriNetUnfolder]: 24/254 cut-off events. [2022-11-16 11:11:59,732 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:11:59,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 299 conditions, 254 events. 24/254 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 958 event pairs, 4 based on Foata normal form. 10/227 useless extension candidates. Maximal degree in co-relation 266. Up to 37 conditions per place. [2022-11-16 11:11:59,738 INFO L137 encePairwiseOnDemand]: 115/125 looper letters, 13 selfloop transitions, 4 changer transitions 0/126 dead transitions. [2022-11-16 11:11:59,739 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 126 transitions, 289 flow [2022-11-16 11:11:59,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:11:59,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:11:59,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 354 transitions. [2022-11-16 11:11:59,761 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.944 [2022-11-16 11:11:59,762 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 354 transitions. [2022-11-16 11:11:59,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 354 transitions. [2022-11-16 11:11:59,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:11:59,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 354 transitions. [2022-11-16 11:11:59,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 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 11:11:59,784 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 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 11:11:59,785 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 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 11:11:59,787 INFO L175 Difference]: Start difference. First operand has 122 places, 124 transitions, 251 flow. Second operand 3 states and 354 transitions. [2022-11-16 11:11:59,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 126 transitions, 289 flow [2022-11-16 11:11:59,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 126 transitions, 288 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:11:59,798 INFO L231 Difference]: Finished difference. Result has 123 places, 124 transitions, 276 flow [2022-11-16 11:11:59,801 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=276, PETRI_PLACES=123, PETRI_TRANSITIONS=124} [2022-11-16 11:11:59,805 INFO L288 CegarLoopForPetriNet]: 122 programPoint places, 1 predicate places. [2022-11-16 11:11:59,806 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 124 transitions, 276 flow [2022-11-16 11:11:59,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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 11:11:59,807 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:11:59,807 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] [2022-11-16 11:11:59,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:11:59,808 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-16 11:11:59,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:11:59,809 INFO L85 PathProgramCache]: Analyzing trace with hash -507929743, now seen corresponding path program 1 times [2022-11-16 11:11:59,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:11:59,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662749604] [2022-11-16 11:11:59,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:11:59,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:11:59,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:11:59,967 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 11:11:59,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:11:59,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662749604] [2022-11-16 11:11:59,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662749604] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:11:59,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:11:59,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:11:59,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630049248] [2022-11-16 11:11:59,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:11:59,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:11:59,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:11:59,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:11:59,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:11:59,974 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 125 [2022-11-16 11:11:59,975 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 124 transitions, 276 flow. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 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 11:11:59,975 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:11:59,975 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 125 [2022-11-16 11:11:59,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:12:00,159 INFO L130 PetriNetUnfolder]: 25/345 cut-off events. [2022-11-16 11:12:00,159 INFO L131 PetriNetUnfolder]: For 12/24 co-relation queries the response was YES. [2022-11-16 11:12:00,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 440 conditions, 345 events. 25/345 cut-off events. For 12/24 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1563 event pairs, 9 based on Foata normal form. 2/300 useless extension candidates. Maximal degree in co-relation 405. Up to 38 conditions per place. [2022-11-16 11:12:00,165 INFO L137 encePairwiseOnDemand]: 118/125 looper letters, 21 selfloop transitions, 6 changer transitions 0/134 dead transitions. [2022-11-16 11:12:00,166 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 134 transitions, 367 flow [2022-11-16 11:12:00,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:12:00,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 11:12:00,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 571 transitions. [2022-11-16 11:12:00,170 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9136 [2022-11-16 11:12:00,171 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 571 transitions. [2022-11-16 11:12:00,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 571 transitions. [2022-11-16 11:12:00,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:12:00,172 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 571 transitions. [2022-11-16 11:12:00,174 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 114.2) internal successors, (571), 5 states have internal predecessors, (571), 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 11:12:00,177 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 125.0) internal successors, (750), 6 states have internal predecessors, (750), 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 11:12:00,178 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 125.0) internal successors, (750), 6 states have internal predecessors, (750), 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 11:12:00,179 INFO L175 Difference]: Start difference. First operand has 123 places, 124 transitions, 276 flow. Second operand 5 states and 571 transitions. [2022-11-16 11:12:00,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 134 transitions, 367 flow [2022-11-16 11:12:00,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 134 transitions, 362 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:12:00,184 INFO L231 Difference]: Finished difference. Result has 129 places, 126 transitions, 309 flow [2022-11-16 11:12:00,185 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=309, PETRI_PLACES=129, PETRI_TRANSITIONS=126} [2022-11-16 11:12:00,186 INFO L288 CegarLoopForPetriNet]: 122 programPoint places, 7 predicate places. [2022-11-16 11:12:00,186 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 126 transitions, 309 flow [2022-11-16 11:12:00,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 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 11:12:00,187 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:12:00,187 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] [2022-11-16 11:12:00,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:12:00,188 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-16 11:12:00,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:00,188 INFO L85 PathProgramCache]: Analyzing trace with hash 392771153, now seen corresponding path program 1 times [2022-11-16 11:12:00,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:12:00,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330172317] [2022-11-16 11:12:00,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:12:00,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:12:00,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:00,295 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 11:12:00,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:12:00,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330172317] [2022-11-16 11:12:00,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330172317] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:12:00,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:12:00,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:12:00,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858576688] [2022-11-16 11:12:00,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:12:00,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:12:00,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:12:00,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:12:00,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:12:00,301 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 125 [2022-11-16 11:12:00,302 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 126 transitions, 309 flow. Second operand has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 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 11:12:00,302 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:12:00,302 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 125 [2022-11-16 11:12:00,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:12:00,500 INFO L130 PetriNetUnfolder]: 49/603 cut-off events. [2022-11-16 11:12:00,500 INFO L131 PetriNetUnfolder]: For 66/85 co-relation queries the response was YES. [2022-11-16 11:12:00,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 789 conditions, 603 events. 49/603 cut-off events. For 66/85 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3666 event pairs, 9 based on Foata normal form. 2/533 useless extension candidates. Maximal degree in co-relation 750. Up to 60 conditions per place. [2022-11-16 11:12:00,507 INFO L137 encePairwiseOnDemand]: 122/125 looper letters, 36 selfloop transitions, 2 changer transitions 0/144 dead transitions. [2022-11-16 11:12:00,507 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 144 transitions, 460 flow [2022-11-16 11:12:00,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:12:00,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 11:12:00,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 456 transitions. [2022-11-16 11:12:00,510 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.912 [2022-11-16 11:12:00,511 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 456 transitions. [2022-11-16 11:12:00,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 456 transitions. [2022-11-16 11:12:00,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:12:00,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 456 transitions. [2022-11-16 11:12:00,514 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 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 11:12:00,516 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 125.0) internal successors, (625), 5 states have internal predecessors, (625), 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 11:12:00,517 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 125.0) internal successors, (625), 5 states have internal predecessors, (625), 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 11:12:00,517 INFO L175 Difference]: Start difference. First operand has 129 places, 126 transitions, 309 flow. Second operand 4 states and 456 transitions. [2022-11-16 11:12:00,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 144 transitions, 460 flow [2022-11-16 11:12:00,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 144 transitions, 445 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:12:00,523 INFO L231 Difference]: Finished difference. Result has 132 places, 127 transitions, 314 flow [2022-11-16 11:12:00,524 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=314, PETRI_PLACES=132, PETRI_TRANSITIONS=127} [2022-11-16 11:12:00,525 INFO L288 CegarLoopForPetriNet]: 122 programPoint places, 10 predicate places. [2022-11-16 11:12:00,525 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 127 transitions, 314 flow [2022-11-16 11:12:00,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 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 11:12:00,526 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:12:00,527 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] [2022-11-16 11:12:00,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:12:00,527 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-16 11:12:00,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:00,528 INFO L85 PathProgramCache]: Analyzing trace with hash -735615075, now seen corresponding path program 2 times [2022-11-16 11:12:00,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:12:00,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060381949] [2022-11-16 11:12:00,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:12:00,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:12:00,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:00,758 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 11:12:00,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:12:00,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060381949] [2022-11-16 11:12:00,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060381949] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:12:00,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:12:00,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:12:00,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346371678] [2022-11-16 11:12:00,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:12:00,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:12:00,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:12:00,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:12:00,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:12:00,764 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 125 [2022-11-16 11:12:00,765 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 127 transitions, 314 flow. Second operand has 5 states, 5 states have (on average 109.4) internal successors, (547), 5 states have internal predecessors, (547), 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 11:12:00,766 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:12:00,766 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 125 [2022-11-16 11:12:00,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:12:00,997 INFO L130 PetriNetUnfolder]: 31/476 cut-off events. [2022-11-16 11:12:00,998 INFO L131 PetriNetUnfolder]: For 27/49 co-relation queries the response was YES. [2022-11-16 11:12:01,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 596 conditions, 476 events. 31/476 cut-off events. For 27/49 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2570 event pairs, 9 based on Foata normal form. 7/432 useless extension candidates. Maximal degree in co-relation 556. Up to 41 conditions per place. [2022-11-16 11:12:01,003 INFO L137 encePairwiseOnDemand]: 114/125 looper letters, 13 selfloop transitions, 11 changer transitions 2/133 dead transitions. [2022-11-16 11:12:01,004 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 133 transitions, 384 flow [2022-11-16 11:12:01,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:12:01,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:12:01,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 677 transitions. [2022-11-16 11:12:01,007 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9026666666666666 [2022-11-16 11:12:01,007 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 677 transitions. [2022-11-16 11:12:01,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 677 transitions. [2022-11-16 11:12:01,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:12:01,008 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 677 transitions. [2022-11-16 11:12:01,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 112.83333333333333) internal successors, (677), 6 states have internal predecessors, (677), 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 11:12:01,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 125.0) internal successors, (875), 7 states have internal predecessors, (875), 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 11:12:01,019 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 125.0) internal successors, (875), 7 states have internal predecessors, (875), 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 11:12:01,020 INFO L175 Difference]: Start difference. First operand has 132 places, 127 transitions, 314 flow. Second operand 6 states and 677 transitions. [2022-11-16 11:12:01,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 133 transitions, 384 flow [2022-11-16 11:12:01,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 133 transitions, 383 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:12:01,026 INFO L231 Difference]: Finished difference. Result has 136 places, 128 transitions, 356 flow [2022-11-16 11:12:01,027 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=307, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=356, PETRI_PLACES=136, PETRI_TRANSITIONS=128} [2022-11-16 11:12:01,030 INFO L288 CegarLoopForPetriNet]: 122 programPoint places, 14 predicate places. [2022-11-16 11:12:01,030 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 128 transitions, 356 flow [2022-11-16 11:12:01,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 109.4) internal successors, (547), 5 states have internal predecessors, (547), 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 11:12:01,037 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:12:01,038 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] [2022-11-16 11:12:01,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:12:01,039 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-16 11:12:01,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:01,040 INFO L85 PathProgramCache]: Analyzing trace with hash -2104635568, now seen corresponding path program 1 times [2022-11-16 11:12:01,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:12:01,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836460568] [2022-11-16 11:12:01,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:12:01,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:12:01,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:01,255 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 11:12:01,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:12:01,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836460568] [2022-11-16 11:12:01,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836460568] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:12:01,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:12:01,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:12:01,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274958071] [2022-11-16 11:12:01,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:12:01,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:12:01,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:12:01,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:12:01,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:12:01,264 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 125 [2022-11-16 11:12:01,265 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 128 transitions, 356 flow. Second operand has 5 states, 5 states have (on average 109.4) internal successors, (547), 5 states have internal predecessors, (547), 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 11:12:01,265 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:12:01,265 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 125 [2022-11-16 11:12:01,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:12:01,442 INFO L130 PetriNetUnfolder]: 27/408 cut-off events. [2022-11-16 11:12:01,442 INFO L131 PetriNetUnfolder]: For 83/117 co-relation queries the response was YES. [2022-11-16 11:12:01,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 562 conditions, 408 events. 27/408 cut-off events. For 83/117 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1959 event pairs, 9 based on Foata normal form. 11/372 useless extension candidates. Maximal degree in co-relation 518. Up to 38 conditions per place. [2022-11-16 11:12:01,446 INFO L137 encePairwiseOnDemand]: 118/125 looper letters, 8 selfloop transitions, 12 changer transitions 1/128 dead transitions. [2022-11-16 11:12:01,446 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 128 transitions, 394 flow [2022-11-16 11:12:01,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:12:01,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-16 11:12:01,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 777 transitions. [2022-11-16 11:12:01,449 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.888 [2022-11-16 11:12:01,450 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 777 transitions. [2022-11-16 11:12:01,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 777 transitions. [2022-11-16 11:12:01,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:12:01,451 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 777 transitions. [2022-11-16 11:12:01,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 111.0) internal successors, (777), 7 states have internal predecessors, (777), 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 11:12:01,457 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 125.0) internal successors, (1000), 8 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:12:01,458 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 125.0) internal successors, (1000), 8 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:12:01,458 INFO L175 Difference]: Start difference. First operand has 136 places, 128 transitions, 356 flow. Second operand 7 states and 777 transitions. [2022-11-16 11:12:01,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 128 transitions, 394 flow [2022-11-16 11:12:01,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 128 transitions, 363 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-11-16 11:12:01,470 INFO L231 Difference]: Finished difference. Result has 134 places, 127 transitions, 343 flow [2022-11-16 11:12:01,470 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=319, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=343, PETRI_PLACES=134, PETRI_TRANSITIONS=127} [2022-11-16 11:12:01,475 INFO L288 CegarLoopForPetriNet]: 122 programPoint places, 12 predicate places. [2022-11-16 11:12:01,475 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 127 transitions, 343 flow [2022-11-16 11:12:01,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 109.4) internal successors, (547), 5 states have internal predecessors, (547), 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 11:12:01,476 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:12:01,477 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] [2022-11-16 11:12:01,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:12:01,478 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-16 11:12:01,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:01,479 INFO L85 PathProgramCache]: Analyzing trace with hash 725738917, now seen corresponding path program 1 times [2022-11-16 11:12:01,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:12:01,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369115452] [2022-11-16 11:12:01,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:12:01,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:12:01,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:01,694 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 11:12:01,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:12:01,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369115452] [2022-11-16 11:12:01,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369115452] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:12:01,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:12:01,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:12:01,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604381537] [2022-11-16 11:12:01,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:12:01,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:12:01,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:12:01,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:12:01,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:12:01,699 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 125 [2022-11-16 11:12:01,700 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 127 transitions, 343 flow. Second operand has 5 states, 5 states have (on average 109.4) internal successors, (547), 5 states have internal predecessors, (547), 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 11:12:01,701 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:12:01,701 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 125 [2022-11-16 11:12:01,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:12:01,827 INFO L130 PetriNetUnfolder]: 21/375 cut-off events. [2022-11-16 11:12:01,827 INFO L131 PetriNetUnfolder]: For 67/89 co-relation queries the response was YES. [2022-11-16 11:12:01,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 485 conditions, 375 events. 21/375 cut-off events. For 67/89 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1679 event pairs, 4 based on Foata normal form. 10/350 useless extension candidates. Maximal degree in co-relation 444. Up to 22 conditions per place. [2022-11-16 11:12:01,830 INFO L137 encePairwiseOnDemand]: 116/125 looper letters, 12 selfloop transitions, 9 changer transitions 1/129 dead transitions. [2022-11-16 11:12:01,831 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 129 transitions, 395 flow [2022-11-16 11:12:01,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:12:01,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:12:01,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 672 transitions. [2022-11-16 11:12:01,834 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.896 [2022-11-16 11:12:01,834 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 672 transitions. [2022-11-16 11:12:01,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 672 transitions. [2022-11-16 11:12:01,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:12:01,835 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 672 transitions. [2022-11-16 11:12:01,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 112.0) internal successors, (672), 6 states have internal predecessors, (672), 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 11:12:01,842 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 125.0) internal successors, (875), 7 states have internal predecessors, (875), 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 11:12:01,842 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 125.0) internal successors, (875), 7 states have internal predecessors, (875), 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 11:12:01,843 INFO L175 Difference]: Start difference. First operand has 134 places, 127 transitions, 343 flow. Second operand 6 states and 672 transitions. [2022-11-16 11:12:01,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 129 transitions, 395 flow [2022-11-16 11:12:01,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 129 transitions, 380 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 11:12:01,850 INFO L231 Difference]: Finished difference. Result has 136 places, 127 transitions, 355 flow [2022-11-16 11:12:01,850 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=355, PETRI_PLACES=136, PETRI_TRANSITIONS=127} [2022-11-16 11:12:01,853 INFO L288 CegarLoopForPetriNet]: 122 programPoint places, 14 predicate places. [2022-11-16 11:12:01,854 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 127 transitions, 355 flow [2022-11-16 11:12:01,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 109.4) internal successors, (547), 5 states have internal predecessors, (547), 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 11:12:01,854 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:12:01,855 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] [2022-11-16 11:12:01,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:12:01,857 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-16 11:12:01,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:01,858 INFO L85 PathProgramCache]: Analyzing trace with hash -2107295698, now seen corresponding path program 1 times [2022-11-16 11:12:01,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:12:01,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053653440] [2022-11-16 11:12:01,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:12:01,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:12:01,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:02,028 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 11:12:02,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:12:02,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053653440] [2022-11-16 11:12:02,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053653440] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:12:02,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:12:02,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:12:02,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231302787] [2022-11-16 11:12:02,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:12:02,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:12:02,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:12:02,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:12:02,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:12:02,046 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 125 [2022-11-16 11:12:02,048 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 127 transitions, 355 flow. Second operand has 5 states, 5 states have (on average 109.4) internal successors, (547), 5 states have internal predecessors, (547), 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 11:12:02,048 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:12:02,048 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 125 [2022-11-16 11:12:02,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:12:02,210 INFO L130 PetriNetUnfolder]: 18/370 cut-off events. [2022-11-16 11:12:02,215 INFO L131 PetriNetUnfolder]: For 112/134 co-relation queries the response was YES. [2022-11-16 11:12:02,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 475 conditions, 370 events. 18/370 cut-off events. For 112/134 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1683 event pairs, 0 based on Foata normal form. 16/361 useless extension candidates. Maximal degree in co-relation 431. Up to 17 conditions per place. [2022-11-16 11:12:02,221 INFO L137 encePairwiseOnDemand]: 117/125 looper letters, 13 selfloop transitions, 10 changer transitions 1/131 dead transitions. [2022-11-16 11:12:02,221 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 131 transitions, 423 flow [2022-11-16 11:12:02,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:12:02,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-16 11:12:02,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 781 transitions. [2022-11-16 11:12:02,225 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8925714285714286 [2022-11-16 11:12:02,226 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 781 transitions. [2022-11-16 11:12:02,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 781 transitions. [2022-11-16 11:12:02,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:12:02,227 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 781 transitions. [2022-11-16 11:12:02,229 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 111.57142857142857) internal successors, (781), 7 states have internal predecessors, (781), 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 11:12:02,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 125.0) internal successors, (1000), 8 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:12:02,233 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 125.0) internal successors, (1000), 8 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:12:02,233 INFO L175 Difference]: Start difference. First operand has 136 places, 127 transitions, 355 flow. Second operand 7 states and 781 transitions. [2022-11-16 11:12:02,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 131 transitions, 423 flow [2022-11-16 11:12:02,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 131 transitions, 410 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 11:12:02,240 INFO L231 Difference]: Finished difference. Result has 140 places, 129 transitions, 386 flow [2022-11-16 11:12:02,241 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=386, PETRI_PLACES=140, PETRI_TRANSITIONS=129} [2022-11-16 11:12:02,242 INFO L288 CegarLoopForPetriNet]: 122 programPoint places, 18 predicate places. [2022-11-16 11:12:02,243 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 129 transitions, 386 flow [2022-11-16 11:12:02,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 109.4) internal successors, (547), 5 states have internal predecessors, (547), 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 11:12:02,243 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:12:02,244 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] [2022-11-16 11:12:02,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:12:02,244 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-16 11:12:02,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:02,245 INFO L85 PathProgramCache]: Analyzing trace with hash 645409317, now seen corresponding path program 1 times [2022-11-16 11:12:02,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:12:02,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804028374] [2022-11-16 11:12:02,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:12:02,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:12:02,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:02,376 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 11:12:02,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:12:02,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804028374] [2022-11-16 11:12:02,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804028374] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:12:02,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:12:02,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:12:02,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580131118] [2022-11-16 11:12:02,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:12:02,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:12:02,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:12:02,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:12:02,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:12:02,381 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 125 [2022-11-16 11:12:02,382 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 129 transitions, 386 flow. Second operand has 5 states, 5 states have (on average 104.6) internal successors, (523), 5 states have internal predecessors, (523), 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 11:12:02,382 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:12:02,382 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 125 [2022-11-16 11:12:02,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:12:02,579 INFO L130 PetriNetUnfolder]: 32/485 cut-off events. [2022-11-16 11:12:02,580 INFO L131 PetriNetUnfolder]: For 241/270 co-relation queries the response was YES. [2022-11-16 11:12:02,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 727 conditions, 485 events. 32/485 cut-off events. For 241/270 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2573 event pairs, 9 based on Foata normal form. 7/457 useless extension candidates. Maximal degree in co-relation 684. Up to 39 conditions per place. [2022-11-16 11:12:02,585 INFO L137 encePairwiseOnDemand]: 119/125 looper letters, 36 selfloop transitions, 5 changer transitions 0/142 dead transitions. [2022-11-16 11:12:02,586 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 142 transitions, 542 flow [2022-11-16 11:12:02,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:12:02,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-16 11:12:02,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 745 transitions. [2022-11-16 11:12:02,590 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8514285714285714 [2022-11-16 11:12:02,592 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 745 transitions. [2022-11-16 11:12:02,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 745 transitions. [2022-11-16 11:12:02,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:12:02,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 745 transitions. [2022-11-16 11:12:02,597 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 106.42857142857143) internal successors, (745), 7 states have internal predecessors, (745), 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 11:12:02,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 125.0) internal successors, (1000), 8 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:12:02,601 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 125.0) internal successors, (1000), 8 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:12:02,601 INFO L175 Difference]: Start difference. First operand has 140 places, 129 transitions, 386 flow. Second operand 7 states and 745 transitions. [2022-11-16 11:12:02,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 142 transitions, 542 flow [2022-11-16 11:12:02,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 142 transitions, 505 flow, removed 13 selfloop flow, removed 3 redundant places. [2022-11-16 11:12:02,612 INFO L231 Difference]: Finished difference. Result has 148 places, 133 transitions, 404 flow [2022-11-16 11:12:02,613 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=404, PETRI_PLACES=148, PETRI_TRANSITIONS=133} [2022-11-16 11:12:02,616 INFO L288 CegarLoopForPetriNet]: 122 programPoint places, 26 predicate places. [2022-11-16 11:12:02,617 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 133 transitions, 404 flow [2022-11-16 11:12:02,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 104.6) internal successors, (523), 5 states have internal predecessors, (523), 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 11:12:02,617 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:12:02,618 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] [2022-11-16 11:12:02,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:12:02,619 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-16 11:12:02,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:02,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1471272809, now seen corresponding path program 1 times [2022-11-16 11:12:02,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:12:02,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263672225] [2022-11-16 11:12:02,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:12:02,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:12:02,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:02,825 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 11:12:02,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:12:02,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263672225] [2022-11-16 11:12:02,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263672225] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:12:02,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:12:02,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:12:02,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013209927] [2022-11-16 11:12:02,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:12:02,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:12:02,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:12:02,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:12:02,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:12:02,831 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 125 [2022-11-16 11:12:02,832 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 133 transitions, 404 flow. Second operand has 6 states, 6 states have (on average 109.33333333333333) internal successors, (656), 6 states have internal predecessors, (656), 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 11:12:02,832 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:12:02,833 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 125 [2022-11-16 11:12:02,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:12:02,998 INFO L130 PetriNetUnfolder]: 17/415 cut-off events. [2022-11-16 11:12:02,998 INFO L131 PetriNetUnfolder]: For 118/146 co-relation queries the response was YES. [2022-11-16 11:12:03,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 568 conditions, 415 events. 17/415 cut-off events. For 118/146 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1904 event pairs, 0 based on Foata normal form. 22/414 useless extension candidates. Maximal degree in co-relation 520. Up to 14 conditions per place. [2022-11-16 11:12:03,003 INFO L137 encePairwiseOnDemand]: 116/125 looper letters, 9 selfloop transitions, 13 changer transitions 1/134 dead transitions. [2022-11-16 11:12:03,003 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 134 transitions, 452 flow [2022-11-16 11:12:03,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:12:03,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-16 11:12:03,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 777 transitions. [2022-11-16 11:12:03,007 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.888 [2022-11-16 11:12:03,007 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 777 transitions. [2022-11-16 11:12:03,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 777 transitions. [2022-11-16 11:12:03,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:12:03,008 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 777 transitions. [2022-11-16 11:12:03,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 111.0) internal successors, (777), 7 states have internal predecessors, (777), 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 11:12:03,013 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 125.0) internal successors, (1000), 8 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:12:03,014 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 125.0) internal successors, (1000), 8 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:12:03,014 INFO L175 Difference]: Start difference. First operand has 148 places, 133 transitions, 404 flow. Second operand 7 states and 777 transitions. [2022-11-16 11:12:03,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 134 transitions, 452 flow [2022-11-16 11:12:03,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 134 transitions, 449 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:12:03,019 INFO L231 Difference]: Finished difference. Result has 151 places, 132 transitions, 419 flow [2022-11-16 11:12:03,020 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=393, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=419, PETRI_PLACES=151, PETRI_TRANSITIONS=132} [2022-11-16 11:12:03,021 INFO L288 CegarLoopForPetriNet]: 122 programPoint places, 29 predicate places. [2022-11-16 11:12:03,021 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 132 transitions, 419 flow [2022-11-16 11:12:03,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 109.33333333333333) internal successors, (656), 6 states have internal predecessors, (656), 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 11:12:03,022 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:12:03,022 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] [2022-11-16 11:12:03,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:12:03,023 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-16 11:12:03,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:03,023 INFO L85 PathProgramCache]: Analyzing trace with hash -2039078292, now seen corresponding path program 1 times [2022-11-16 11:12:03,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:12:03,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394978465] [2022-11-16 11:12:03,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:12:03,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:12:03,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:03,180 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 11:12:03,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:12:03,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394978465] [2022-11-16 11:12:03,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394978465] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:12:03,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:12:03,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:12:03,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868125347] [2022-11-16 11:12:03,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:12:03,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:12:03,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:12:03,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:12:03,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:12:03,193 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 125 [2022-11-16 11:12:03,195 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 132 transitions, 419 flow. Second operand has 6 states, 6 states have (on average 109.33333333333333) internal successors, (656), 6 states have internal predecessors, (656), 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 11:12:03,195 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:12:03,195 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 125 [2022-11-16 11:12:03,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:12:03,347 INFO L130 PetriNetUnfolder]: 17/414 cut-off events. [2022-11-16 11:12:03,347 INFO L131 PetriNetUnfolder]: For 137/160 co-relation queries the response was YES. [2022-11-16 11:12:03,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 576 conditions, 414 events. 17/414 cut-off events. For 137/160 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1889 event pairs, 0 based on Foata normal form. 24/416 useless extension candidates. Maximal degree in co-relation 526. Up to 14 conditions per place. [2022-11-16 11:12:03,351 INFO L137 encePairwiseOnDemand]: 118/125 looper letters, 6 selfloop transitions, 8 changer transitions 15/133 dead transitions. [2022-11-16 11:12:03,352 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 133 transitions, 465 flow [2022-11-16 11:12:03,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:12:03,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-16 11:12:03,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 885 transitions. [2022-11-16 11:12:03,355 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.885 [2022-11-16 11:12:03,356 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 885 transitions. [2022-11-16 11:12:03,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 885 transitions. [2022-11-16 11:12:03,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:12:03,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 885 transitions. [2022-11-16 11:12:03,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 110.625) internal successors, (885), 8 states have internal predecessors, (885), 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 11:12:03,362 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 125.0) internal successors, (1125), 9 states have internal predecessors, (1125), 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 11:12:03,363 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 125.0) internal successors, (1125), 9 states have internal predecessors, (1125), 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 11:12:03,363 INFO L175 Difference]: Start difference. First operand has 151 places, 132 transitions, 419 flow. Second operand 8 states and 885 transitions. [2022-11-16 11:12:03,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 133 transitions, 465 flow [2022-11-16 11:12:03,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 133 transitions, 447 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 11:12:03,369 INFO L231 Difference]: Finished difference. Result has 155 places, 118 transitions, 351 flow [2022-11-16 11:12:03,370 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=393, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=351, PETRI_PLACES=155, PETRI_TRANSITIONS=118} [2022-11-16 11:12:03,371 INFO L288 CegarLoopForPetriNet]: 122 programPoint places, 33 predicate places. [2022-11-16 11:12:03,371 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 118 transitions, 351 flow [2022-11-16 11:12:03,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 109.33333333333333) internal successors, (656), 6 states have internal predecessors, (656), 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 11:12:03,372 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:12:03,373 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] [2022-11-16 11:12:03,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:12:03,373 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-16 11:12:03,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:03,374 INFO L85 PathProgramCache]: Analyzing trace with hash 735573400, now seen corresponding path program 2 times [2022-11-16 11:12:03,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:12:03,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90257760] [2022-11-16 11:12:03,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:12:03,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:12:03,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:03,526 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 11:12:03,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:12:03,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90257760] [2022-11-16 11:12:03,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90257760] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:12:03,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:12:03,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:12:03,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412435596] [2022-11-16 11:12:03,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:12:03,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:12:03,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:12:03,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:12:03,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:12:03,530 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 125 [2022-11-16 11:12:03,532 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 118 transitions, 351 flow. Second operand has 6 states, 6 states have (on average 109.33333333333333) internal successors, (656), 6 states have internal predecessors, (656), 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 11:12:03,532 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:12:03,532 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 125 [2022-11-16 11:12:03,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:12:03,614 INFO L130 PetriNetUnfolder]: 6/206 cut-off events. [2022-11-16 11:12:03,614 INFO L131 PetriNetUnfolder]: For 84/97 co-relation queries the response was YES. [2022-11-16 11:12:03,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 302 conditions, 206 events. 6/206 cut-off events. For 84/97 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 428 event pairs, 0 based on Foata normal form. 15/212 useless extension candidates. Maximal degree in co-relation 272. Up to 6 conditions per place. [2022-11-16 11:12:03,616 INFO L137 encePairwiseOnDemand]: 118/125 looper letters, 0 selfloop transitions, 0 changer transitions 116/116 dead transitions. [2022-11-16 11:12:03,616 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 116 transitions, 353 flow [2022-11-16 11:12:03,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:12:03,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-16 11:12:03,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 770 transitions. [2022-11-16 11:12:03,620 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.88 [2022-11-16 11:12:03,620 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 770 transitions. [2022-11-16 11:12:03,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 770 transitions. [2022-11-16 11:12:03,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:12:03,621 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 770 transitions. [2022-11-16 11:12:03,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 110.0) internal successors, (770), 7 states have internal predecessors, (770), 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 11:12:03,626 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 125.0) internal successors, (1000), 8 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:12:03,626 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 125.0) internal successors, (1000), 8 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:12:03,627 INFO L175 Difference]: Start difference. First operand has 155 places, 118 transitions, 351 flow. Second operand 7 states and 770 transitions. [2022-11-16 11:12:03,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 116 transitions, 353 flow [2022-11-16 11:12:03,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 116 transitions, 291 flow, removed 5 selfloop flow, removed 22 redundant places. [2022-11-16 11:12:03,630 INFO L231 Difference]: Finished difference. Result has 131 places, 0 transitions, 0 flow [2022-11-16 11:12:03,630 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=131, PETRI_TRANSITIONS=0} [2022-11-16 11:12:03,631 INFO L288 CegarLoopForPetriNet]: 122 programPoint places, 9 predicate places. [2022-11-16 11:12:03,631 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 0 transitions, 0 flow [2022-11-16 11:12:03,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 109.33333333333333) internal successors, (656), 6 states have internal predecessors, (656), 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 11:12:03,635 INFO L805 garLoopResultBuilder]: Registering result SAFE for location BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 9 remaining) [2022-11-16 11:12:03,636 INFO L805 garLoopResultBuilder]: Registering result SAFE for location BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2022-11-16 11:12:03,636 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2022-11-16 11:12:03,636 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2022-11-16 11:12:03,636 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 9 remaining) [2022-11-16 11:12:03,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2022-11-16 11:12:03,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 9 remaining) [2022-11-16 11:12:03,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2022-11-16 11:12:03,638 INFO L805 garLoopResultBuilder]: Registering result SAFE for location BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2022-11-16 11:12:03,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:12:03,639 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:12:03,648 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 11:12:03,648 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:12:03,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:12:03 BasicIcfg [2022-11-16 11:12:03,658 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:12:03,658 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:12:03,659 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:12:03,659 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:12:03,660 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:11:58" (3/4) ... [2022-11-16 11:12:03,663 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 11:12:03,669 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure BCSP_PnpStop [2022-11-16 11:12:03,678 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2022-11-16 11:12:03,679 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-16 11:12:03,679 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 11:12:03,679 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 11:12:03,734 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d3aa0e-89e0-4658-a0d7-cee4c1a1c95d/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:12:03,734 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:12:03,736 INFO L158 Benchmark]: Toolchain (without parser) took 6691.93ms. Allocated memory was 102.8MB in the beginning and 201.3MB in the end (delta: 98.6MB). Free memory was 81.9MB in the beginning and 88.6MB in the end (delta: -6.7MB). Peak memory consumption was 91.4MB. Max. memory is 16.1GB. [2022-11-16 11:12:03,736 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 102.8MB. Free memory was 77.8MB in the beginning and 77.7MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:12:03,737 INFO L158 Benchmark]: CACSL2BoogieTranslator took 628.31ms. Allocated memory is still 102.8MB. Free memory was 81.5MB in the beginning and 70.3MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 11:12:03,737 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.42ms. Allocated memory is still 102.8MB. Free memory was 70.3MB in the beginning and 67.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:12:03,737 INFO L158 Benchmark]: Boogie Preprocessor took 58.20ms. Allocated memory is still 102.8MB. Free memory was 67.9MB in the beginning and 66.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:12:03,738 INFO L158 Benchmark]: RCFGBuilder took 714.62ms. Allocated memory is still 102.8MB. Free memory was 66.5MB in the beginning and 49.4MB in the end (delta: 17.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-16 11:12:03,739 INFO L158 Benchmark]: TraceAbstraction took 5112.22ms. Allocated memory was 102.8MB in the beginning and 201.3MB in the end (delta: 98.6MB). Free memory was 48.7MB in the beginning and 91.7MB in the end (delta: -43.0MB). Peak memory consumption was 57.6MB. Max. memory is 16.1GB. [2022-11-16 11:12:03,739 INFO L158 Benchmark]: Witness Printer took 76.14ms. Allocated memory is still 201.3MB. Free memory was 91.7MB in the beginning and 88.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:12:03,742 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 102.8MB. Free memory was 77.8MB in the beginning and 77.7MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 628.31ms. Allocated memory is still 102.8MB. Free memory was 81.5MB in the beginning and 70.3MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.42ms. Allocated memory is still 102.8MB. Free memory was 70.3MB in the beginning and 67.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.20ms. Allocated memory is still 102.8MB. Free memory was 67.9MB in the beginning and 66.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 714.62ms. Allocated memory is still 102.8MB. Free memory was 66.5MB in the beginning and 49.4MB in the end (delta: 17.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 5112.22ms. Allocated memory was 102.8MB in the beginning and 201.3MB in the end (delta: 98.6MB). Free memory was 48.7MB in the beginning and 91.7MB in the end (delta: -43.0MB). Peak memory consumption was 57.6MB. Max. memory is 16.1GB. * Witness Printer took 76.14ms. Allocated memory is still 201.3MB. Free memory was 91.7MB in the beginning and 88.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 719]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 719]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 712]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 712]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 719]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 719]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 153 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.9s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 124 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 124 mSDsluCounter, 110 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 56 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 472 IncrementalHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 54 mSDtfsCounter, 472 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=419occurred in iteration=9, InterpolantAutomatonStates: 67, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 592 NumberOfCodeBlocks, 592 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 581 ConstructedInterpolants, 0 QuantifiedInterpolants, 1269 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-16 11:12:03,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97d3aa0e-89e0-4658-a0d7-cee4c1a1c95d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE