./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b 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_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN --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 a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb --- 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-6b4ec56 [2022-11-20 11:01:08,464 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:01:08,466 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:01:08,491 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:01:08,491 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:01:08,493 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:01:08,495 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:01:08,497 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:01:08,499 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:01:08,501 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:01:08,502 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:01:08,504 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:01:08,505 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:01:08,506 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:01:08,508 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:01:08,509 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:01:08,510 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:01:08,512 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:01:08,514 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:01:08,519 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:01:08,521 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:01:08,523 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:01:08,528 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:01:08,529 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:01:08,542 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:01:08,543 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:01:08,544 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:01:08,545 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:01:08,546 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:01:08,547 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:01:08,555 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:01:08,557 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:01:08,558 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:01:08,559 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:01:08,561 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:01:08,561 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:01:08,562 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:01:08,562 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:01:08,563 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:01:08,564 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:01:08,568 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:01:08,569 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 11:01:08,608 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:01:08,613 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:01:08,614 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:01:08,615 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:01:08,616 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:01:08,616 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:01:08,617 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:01:08,618 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:01:08,618 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:01:08,618 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:01:08,620 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:01:08,620 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:01:08,620 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:01:08,621 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:01:08,621 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:01:08,622 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:01:08,622 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:01:08,622 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:01:08,623 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 11:01:08,623 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:01:08,623 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:01:08,624 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:01:08,624 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:01:08,624 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:01:08,625 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:01:08,625 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:01:08,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:01:08,626 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:01:08,627 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:01:08,627 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:01:08,628 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:01:08,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:01:08,628 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:01:08,629 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:01:08,629 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:01:08,629 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_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb [2022-11-20 11:01:09,031 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:01:09,073 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:01:09,077 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:01:09,079 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:01:09,080 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:01:09,081 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2022-11-20 11:01:12,872 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:01:13,253 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:01:13,254 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2022-11-20 11:01:13,283 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/data/8fd5a50fe/7767f6f0ba044a19b630ff1c54c56b67/FLAG990efb9b4 [2022-11-20 11:01:13,326 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/data/8fd5a50fe/7767f6f0ba044a19b630ff1c54c56b67 [2022-11-20 11:01:13,330 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:01:13,331 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:01:13,337 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:01:13,338 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:01:13,342 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:01:13,346 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:01:13" (1/1) ... [2022-11-20 11:01:13,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54e3be58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:13, skipping insertion in model container [2022-11-20 11:01:13,348 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:01:13" (1/1) ... [2022-11-20 11:01:13,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:01:13,418 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:01:14,069 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:01:14,104 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:01:14,186 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:01:14,274 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:01:14,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:14 WrapperNode [2022-11-20 11:01:14,276 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:01:14,277 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:01:14,278 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:01:14,278 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:01:14,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:14" (1/1) ... [2022-11-20 11:01:14,323 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:14" (1/1) ... [2022-11-20 11:01:14,369 INFO L138 Inliner]: procedures = 264, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 75 [2022-11-20 11:01:14,369 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:01:14,370 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:01:14,370 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:01:14,371 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:01:14,382 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:14" (1/1) ... [2022-11-20 11:01:14,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:14" (1/1) ... [2022-11-20 11:01:14,389 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:14" (1/1) ... [2022-11-20 11:01:14,389 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:14" (1/1) ... [2022-11-20 11:01:14,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:14" (1/1) ... [2022-11-20 11:01:14,410 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:14" (1/1) ... [2022-11-20 11:01:14,418 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:14" (1/1) ... [2022-11-20 11:01:14,419 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:14" (1/1) ... [2022-11-20 11:01:14,423 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:01:14,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:01:14,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:01:14,438 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:01:14,440 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:14" (1/1) ... [2022-11-20 11:01:14,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:01:14,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:01:14,482 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:01:14,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:01:14,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:01:14,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:01:14,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:01:14,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:01:14,532 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 11:01:14,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:01:14,533 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-20 11:01:14,533 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-20 11:01:14,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:01:14,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:01:14,535 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 11:01:14,808 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:01:14,810 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:01:15,111 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:01:15,120 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:01:15,130 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 11:01:15,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:01:15 BoogieIcfgContainer [2022-11-20 11:01:15,134 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:01:15,137 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:01:15,140 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:01:15,144 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:01:15,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:01:13" (1/3) ... [2022-11-20 11:01:15,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b4929cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:01:15, skipping insertion in model container [2022-11-20 11:01:15,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:14" (2/3) ... [2022-11-20 11:01:15,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b4929cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:01:15, skipping insertion in model container [2022-11-20 11:01:15,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:01:15" (3/3) ... [2022-11-20 11:01:15,152 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_08-tricky_address3.i [2022-11-20 11:01:15,164 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:01:15,177 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:01:15,177 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-20 11:01:15,178 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:01:15,282 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 11:01:15,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 94 transitions, 193 flow [2022-11-20 11:01:15,403 INFO L130 PetriNetUnfolder]: 4/93 cut-off events. [2022-11-20 11:01:15,403 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:01:15,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 93 events. 4/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 76 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2022-11-20 11:01:15,409 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 94 transitions, 193 flow [2022-11-20 11:01:15,415 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 93 transitions, 189 flow [2022-11-20 11:01:15,429 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:01:15,435 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;@36273d94, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:01:15,435 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-11-20 11:01:15,443 INFO L130 PetriNetUnfolder]: 1/20 cut-off events. [2022-11-20 11:01:15,443 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:01:15,444 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:01:15,445 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:01:15,445 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-20 11:01:15,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:01:15,452 INFO L85 PathProgramCache]: Analyzing trace with hash 651890107, now seen corresponding path program 1 times [2022-11-20 11:01:15,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:01:15,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355152245] [2022-11-20 11:01:15,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:01:15,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:01:15,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:01:15,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:01:15,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:01:15,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355152245] [2022-11-20 11:01:15,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355152245] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:01:15,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:01:15,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:01:15,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308953966] [2022-11-20 11:01:15,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:01:15,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:01:15,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:01:15,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:01:15,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:01:15,866 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 94 [2022-11-20 11:01:15,871 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 93 transitions, 189 flow. Second operand has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 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) [2022-11-20 11:01:15,878 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:01:15,878 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 94 [2022-11-20 11:01:15,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:01:16,011 INFO L130 PetriNetUnfolder]: 1/97 cut-off events. [2022-11-20 11:01:16,012 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 11:01:16,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 97 events. 1/97 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 73 event pairs, 0 based on Foata normal form. 2/88 useless extension candidates. Maximal degree in co-relation 62. Up to 14 conditions per place. [2022-11-20 11:01:16,014 INFO L137 encePairwiseOnDemand]: 84/94 looper letters, 16 selfloop transitions, 4 changer transitions 1/97 dead transitions. [2022-11-20 11:01:16,014 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 97 transitions, 237 flow [2022-11-20 11:01:16,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:01:16,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 11:01:16,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 417 transitions. [2022-11-20 11:01:16,032 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8872340425531915 [2022-11-20 11:01:16,033 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 417 transitions. [2022-11-20 11:01:16,034 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 417 transitions. [2022-11-20 11:01:16,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:01:16,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 417 transitions. [2022-11-20 11:01:16,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 83.4) internal successors, (417), 5 states have internal predecessors, (417), 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) [2022-11-20 11:01:16,053 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 94.0) internal successors, (564), 6 states have internal predecessors, (564), 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) [2022-11-20 11:01:16,054 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 94.0) internal successors, (564), 6 states have internal predecessors, (564), 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) [2022-11-20 11:01:16,056 INFO L175 Difference]: Start difference. First operand has 93 places, 93 transitions, 189 flow. Second operand 5 states and 417 transitions. [2022-11-20 11:01:16,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 97 transitions, 237 flow [2022-11-20 11:01:16,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 97 transitions, 236 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:01:16,066 INFO L231 Difference]: Finished difference. Result has 99 places, 92 transitions, 212 flow [2022-11-20 11:01:16,068 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=212, PETRI_PLACES=99, PETRI_TRANSITIONS=92} [2022-11-20 11:01:16,073 INFO L288 CegarLoopForPetriNet]: 93 programPoint places, 6 predicate places. [2022-11-20 11:01:16,073 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 92 transitions, 212 flow [2022-11-20 11:01:16,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 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) [2022-11-20 11:01:16,074 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:01:16,074 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:01:16,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:01:16,075 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-20 11:01:16,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:01:16,076 INFO L85 PathProgramCache]: Analyzing trace with hash -954077976, now seen corresponding path program 1 times [2022-11-20 11:01:16,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:01:16,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777206469] [2022-11-20 11:01:16,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:01:16,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:01:16,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:01:16,233 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 11:01:16,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:01:16,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777206469] [2022-11-20 11:01:16,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777206469] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:01:16,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:01:16,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:01:16,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535157082] [2022-11-20 11:01:16,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:01:16,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:01:16,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:01:16,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:01:16,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:01:16,241 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 94 [2022-11-20 11:01:16,252 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 92 transitions, 212 flow. Second operand has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:01:16,252 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:01:16,252 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 94 [2022-11-20 11:01:16,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:01:16,376 INFO L130 PetriNetUnfolder]: 1/95 cut-off events. [2022-11-20 11:01:16,377 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 11:01:16,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 95 events. 1/95 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 69 event pairs, 0 based on Foata normal form. 1/89 useless extension candidates. Maximal degree in co-relation 93. Up to 7 conditions per place. [2022-11-20 11:01:16,378 INFO L137 encePairwiseOnDemand]: 88/94 looper letters, 8 selfloop transitions, 8 changer transitions 0/92 dead transitions. [2022-11-20 11:01:16,378 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 92 transitions, 242 flow [2022-11-20 11:01:16,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:01:16,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 11:01:16,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 404 transitions. [2022-11-20 11:01:16,383 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8595744680851064 [2022-11-20 11:01:16,384 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 404 transitions. [2022-11-20 11:01:16,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 404 transitions. [2022-11-20 11:01:16,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:01:16,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 404 transitions. [2022-11-20 11:01:16,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 80.8) internal successors, (404), 5 states have internal predecessors, (404), 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) [2022-11-20 11:01:16,394 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 94.0) internal successors, (564), 6 states have internal predecessors, (564), 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) [2022-11-20 11:01:16,395 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 94.0) internal successors, (564), 6 states have internal predecessors, (564), 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) [2022-11-20 11:01:16,395 INFO L175 Difference]: Start difference. First operand has 99 places, 92 transitions, 212 flow. Second operand 5 states and 404 transitions. [2022-11-20 11:01:16,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 92 transitions, 242 flow [2022-11-20 11:01:16,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 92 transitions, 240 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:01:16,401 INFO L231 Difference]: Finished difference. Result has 101 places, 92 transitions, 230 flow [2022-11-20 11:01:16,401 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=230, PETRI_PLACES=101, PETRI_TRANSITIONS=92} [2022-11-20 11:01:16,402 INFO L288 CegarLoopForPetriNet]: 93 programPoint places, 8 predicate places. [2022-11-20 11:01:16,403 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 92 transitions, 230 flow [2022-11-20 11:01:16,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:01:16,404 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:01:16,404 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:01:16,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:01:16,405 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-20 11:01:16,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:01:16,406 INFO L85 PathProgramCache]: Analyzing trace with hash 488353993, now seen corresponding path program 1 times [2022-11-20 11:01:16,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:01:16,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787519210] [2022-11-20 11:01:16,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:01:16,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:01:16,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:01:16,632 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:01:16,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:01:16,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787519210] [2022-11-20 11:01:16,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787519210] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:01:16,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [271738395] [2022-11-20 11:01:16,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:01:16,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:01:16,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:01:16,639 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:01:16,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 11:01:16,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:01:16,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 11:01:16,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:01:16,899 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:01:16,899 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:01:16,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [271738395] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:01:16,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:01:16,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-20 11:01:16,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491846544] [2022-11-20 11:01:16,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:01:16,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:01:16,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:01:16,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:01:16,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:01:16,906 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 94 [2022-11-20 11:01:16,907 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 92 transitions, 230 flow. Second operand has 6 states, 6 states have (on average 80.33333333333333) internal successors, (482), 6 states have internal predecessors, (482), 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) [2022-11-20 11:01:16,907 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:01:16,908 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 94 [2022-11-20 11:01:16,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:01:17,014 INFO L130 PetriNetUnfolder]: 1/94 cut-off events. [2022-11-20 11:01:17,015 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-11-20 11:01:17,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 94 events. 1/94 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 65 event pairs, 0 based on Foata normal form. 1/88 useless extension candidates. Maximal degree in co-relation 12. Up to 6 conditions per place. [2022-11-20 11:01:17,016 INFO L137 encePairwiseOnDemand]: 89/94 looper letters, 12 selfloop transitions, 6 changer transitions 0/94 dead transitions. [2022-11-20 11:01:17,016 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 94 transitions, 268 flow [2022-11-20 11:01:17,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:01:17,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-20 11:01:17,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 565 transitions. [2022-11-20 11:01:17,021 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8586626139817629 [2022-11-20 11:01:17,021 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 565 transitions. [2022-11-20 11:01:17,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 565 transitions. [2022-11-20 11:01:17,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:01:17,023 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 565 transitions. [2022-11-20 11:01:17,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 80.71428571428571) internal successors, (565), 7 states have internal predecessors, (565), 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) [2022-11-20 11:01:17,030 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 94.0) internal successors, (752), 8 states have internal predecessors, (752), 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) [2022-11-20 11:01:17,030 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 94.0) internal successors, (752), 8 states have internal predecessors, (752), 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) [2022-11-20 11:01:17,031 INFO L175 Difference]: Start difference. First operand has 101 places, 92 transitions, 230 flow. Second operand 7 states and 565 transitions. [2022-11-20 11:01:17,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 94 transitions, 268 flow [2022-11-20 11:01:17,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 94 transitions, 256 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-20 11:01:17,036 INFO L231 Difference]: Finished difference. Result has 103 places, 91 transitions, 226 flow [2022-11-20 11:01:17,036 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=226, PETRI_PLACES=103, PETRI_TRANSITIONS=91} [2022-11-20 11:01:17,038 INFO L288 CegarLoopForPetriNet]: 93 programPoint places, 10 predicate places. [2022-11-20 11:01:17,038 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 91 transitions, 226 flow [2022-11-20 11:01:17,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.33333333333333) internal successors, (482), 6 states have internal predecessors, (482), 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) [2022-11-20 11:01:17,039 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:01:17,039 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] [2022-11-20 11:01:17,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 11:01:17,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:01:17,254 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-20 11:01:17,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:01:17,255 INFO L85 PathProgramCache]: Analyzing trace with hash -317314014, now seen corresponding path program 1 times [2022-11-20 11:01:17,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:01:17,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890272128] [2022-11-20 11:01:17,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:01:17,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:01:17,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:01:17,496 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:01:17,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:01:17,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890272128] [2022-11-20 11:01:17,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890272128] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:01:17,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15608883] [2022-11-20 11:01:17,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:01:17,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:01:17,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:01:17,502 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:01:17,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 11:01:17,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:01:17,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:01:17,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:01:17,704 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:01:17,704 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:01:17,765 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:01:17,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15608883] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:01:17,766 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:01:17,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 11:01:17,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091972551] [2022-11-20 11:01:17,771 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:01:17,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 11:01:17,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:01:17,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 11:01:17,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:01:17,775 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 94 [2022-11-20 11:01:17,780 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 91 transitions, 226 flow. Second operand has 10 states, 10 states have (on average 80.7) internal successors, (807), 10 states have internal predecessors, (807), 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) [2022-11-20 11:01:17,780 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:01:17,782 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 94 [2022-11-20 11:01:17,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:01:17,967 INFO L130 PetriNetUnfolder]: 1/102 cut-off events. [2022-11-20 11:01:17,968 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2022-11-20 11:01:17,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 102 events. 1/102 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 2/97 useless extension candidates. Maximal degree in co-relation 81. Up to 7 conditions per place. [2022-11-20 11:01:17,969 INFO L137 encePairwiseOnDemand]: 88/94 looper letters, 17 selfloop transitions, 9 changer transitions 0/102 dead transitions. [2022-11-20 11:01:17,969 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 102 transitions, 316 flow [2022-11-20 11:01:17,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 11:01:17,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-20 11:01:17,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 730 transitions. [2022-11-20 11:01:17,974 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8628841607565012 [2022-11-20 11:01:17,974 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 730 transitions. [2022-11-20 11:01:17,974 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 730 transitions. [2022-11-20 11:01:17,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:01:17,975 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 730 transitions. [2022-11-20 11:01:17,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 81.11111111111111) internal successors, (730), 9 states have internal predecessors, (730), 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) [2022-11-20 11:01:17,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 94.0) internal successors, (940), 10 states have internal predecessors, (940), 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) [2022-11-20 11:01:17,984 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 94.0) internal successors, (940), 10 states have internal predecessors, (940), 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) [2022-11-20 11:01:17,984 INFO L175 Difference]: Start difference. First operand has 103 places, 91 transitions, 226 flow. Second operand 9 states and 730 transitions. [2022-11-20 11:01:17,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 102 transitions, 316 flow [2022-11-20 11:01:17,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 102 transitions, 303 flow, removed 2 selfloop flow, removed 5 redundant places. [2022-11-20 11:01:17,989 INFO L231 Difference]: Finished difference. Result has 110 places, 95 transitions, 273 flow [2022-11-20 11:01:17,990 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=273, PETRI_PLACES=110, PETRI_TRANSITIONS=95} [2022-11-20 11:01:17,991 INFO L288 CegarLoopForPetriNet]: 93 programPoint places, 17 predicate places. [2022-11-20 11:01:17,991 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 95 transitions, 273 flow [2022-11-20 11:01:17,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 80.7) internal successors, (807), 10 states have internal predecessors, (807), 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) [2022-11-20 11:01:17,992 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:01:17,992 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:01:18,009 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-20 11:01:18,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:01:18,199 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-20 11:01:18,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:01:18,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1105021758, now seen corresponding path program 2 times [2022-11-20 11:01:18,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:01:18,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032908090] [2022-11-20 11:01:18,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:01:18,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:01:18,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:01:18,436 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:01:18,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:01:18,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032908090] [2022-11-20 11:01:18,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032908090] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:01:18,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757145413] [2022-11-20 11:01:18,437 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:01:18,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:01:18,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:01:18,439 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:01:18,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 11:01:18,578 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 11:01:18,579 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:01:18,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 11:01:18,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:01:18,687 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-20 11:01:19,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 11:01:19,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-20 11:01:19,152 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2022-11-20 11:01:19,205 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-20 11:01:19,206 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:01:19,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [757145413] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:01:19,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:01:19,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 16 [2022-11-20 11:01:19,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864232861] [2022-11-20 11:01:19,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:01:19,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 11:01:19,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:01:19,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 11:01:19,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-11-20 11:01:19,211 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 94 [2022-11-20 11:01:19,212 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 95 transitions, 273 flow. Second operand has 9 states, 9 states have (on average 68.33333333333333) internal successors, (615), 9 states have internal predecessors, (615), 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) [2022-11-20 11:01:19,212 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:01:19,213 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 94 [2022-11-20 11:01:19,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:01:19,413 INFO L130 PetriNetUnfolder]: 43/268 cut-off events. [2022-11-20 11:01:19,414 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2022-11-20 11:01:19,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 433 conditions, 268 events. 43/268 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1080 event pairs, 27 based on Foata normal form. 0/224 useless extension candidates. Maximal degree in co-relation 351. Up to 77 conditions per place. [2022-11-20 11:01:19,420 INFO L137 encePairwiseOnDemand]: 83/94 looper letters, 25 selfloop transitions, 13 changer transitions 0/109 dead transitions. [2022-11-20 11:01:19,420 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 109 transitions, 377 flow [2022-11-20 11:01:19,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 11:01:19,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-20 11:01:19,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 575 transitions. [2022-11-20 11:01:19,424 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7646276595744681 [2022-11-20 11:01:19,424 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 575 transitions. [2022-11-20 11:01:19,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 575 transitions. [2022-11-20 11:01:19,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:01:19,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 575 transitions. [2022-11-20 11:01:19,429 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 71.875) internal successors, (575), 8 states have internal predecessors, (575), 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) [2022-11-20 11:01:19,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 94.0) internal successors, (846), 9 states have internal predecessors, (846), 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) [2022-11-20 11:01:19,431 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 94.0) internal successors, (846), 9 states have internal predecessors, (846), 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) [2022-11-20 11:01:19,432 INFO L175 Difference]: Start difference. First operand has 110 places, 95 transitions, 273 flow. Second operand 8 states and 575 transitions. [2022-11-20 11:01:19,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 109 transitions, 377 flow [2022-11-20 11:01:19,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 109 transitions, 363 flow, removed 3 selfloop flow, removed 4 redundant places. [2022-11-20 11:01:19,444 INFO L231 Difference]: Finished difference. Result has 116 places, 103 transitions, 328 flow [2022-11-20 11:01:19,444 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=328, PETRI_PLACES=116, PETRI_TRANSITIONS=103} [2022-11-20 11:01:19,448 INFO L288 CegarLoopForPetriNet]: 93 programPoint places, 23 predicate places. [2022-11-20 11:01:19,449 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 103 transitions, 328 flow [2022-11-20 11:01:19,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 68.33333333333333) internal successors, (615), 9 states have internal predecessors, (615), 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) [2022-11-20 11:01:19,449 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:01:19,450 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:01:19,464 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-20 11:01:19,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:01:19,657 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-20 11:01:19,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:01:19,658 INFO L85 PathProgramCache]: Analyzing trace with hash 104064099, now seen corresponding path program 1 times [2022-11-20 11:01:19,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:01:19,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940502038] [2022-11-20 11:01:19,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:01:19,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:01:19,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:01:19,973 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:01:19,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:01:19,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940502038] [2022-11-20 11:01:19,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940502038] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:01:19,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053808458] [2022-11-20 11:01:19,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:01:19,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:01:19,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:01:19,978 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:01:20,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 11:01:20,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:01:20,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 11:01:20,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:01:20,211 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:01:20,215 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:01:20,361 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:01:20,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053808458] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:01:20,362 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:01:20,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-20 11:01:20,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169841690] [2022-11-20 11:01:20,364 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:01:20,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:01:20,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:01:20,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:01:20,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:01:20,378 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 94 [2022-11-20 11:01:20,382 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 103 transitions, 328 flow. Second operand has 18 states, 18 states have (on average 81.05555555555556) internal successors, (1459), 18 states have internal predecessors, (1459), 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) [2022-11-20 11:01:20,382 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:01:20,382 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 94 [2022-11-20 11:01:20,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:01:20,732 INFO L130 PetriNetUnfolder]: 8/202 cut-off events. [2022-11-20 11:01:20,732 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2022-11-20 11:01:20,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 397 conditions, 202 events. 8/202 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 415 event pairs, 2 based on Foata normal form. 4/191 useless extension candidates. Maximal degree in co-relation 315. Up to 14 conditions per place. [2022-11-20 11:01:20,738 INFO L137 encePairwiseOnDemand]: 88/94 looper letters, 33 selfloop transitions, 21 changer transitions 0/138 dead transitions. [2022-11-20 11:01:20,738 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 138 transitions, 598 flow [2022-11-20 11:01:20,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 11:01:20,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-20 11:01:20,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1696 transitions. [2022-11-20 11:01:20,744 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8591691995947315 [2022-11-20 11:01:20,744 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1696 transitions. [2022-11-20 11:01:20,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1696 transitions. [2022-11-20 11:01:20,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:01:20,746 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1696 transitions. [2022-11-20 11:01:20,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 80.76190476190476) internal successors, (1696), 21 states have internal predecessors, (1696), 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) [2022-11-20 11:01:20,755 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 94.0) internal successors, (2068), 22 states have internal predecessors, (2068), 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) [2022-11-20 11:01:20,757 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 94.0) internal successors, (2068), 22 states have internal predecessors, (2068), 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) [2022-11-20 11:01:20,757 INFO L175 Difference]: Start difference. First operand has 116 places, 103 transitions, 328 flow. Second operand 21 states and 1696 transitions. [2022-11-20 11:01:20,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 138 transitions, 598 flow [2022-11-20 11:01:20,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 138 transitions, 590 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-20 11:01:20,771 INFO L231 Difference]: Finished difference. Result has 138 places, 116 transitions, 484 flow [2022-11-20 11:01:20,772 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=484, PETRI_PLACES=138, PETRI_TRANSITIONS=116} [2022-11-20 11:01:20,775 INFO L288 CegarLoopForPetriNet]: 93 programPoint places, 45 predicate places. [2022-11-20 11:01:20,775 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 116 transitions, 484 flow [2022-11-20 11:01:20,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 81.05555555555556) internal successors, (1459), 18 states have internal predecessors, (1459), 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) [2022-11-20 11:01:20,777 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:01:20,778 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:01:20,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 11:01:20,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:01:20,987 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-20 11:01:20,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:01:20,988 INFO L85 PathProgramCache]: Analyzing trace with hash -163790045, now seen corresponding path program 2 times [2022-11-20 11:01:20,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:01:20,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873406699] [2022-11-20 11:01:20,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:01:20,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:01:21,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:01:21,507 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:01:21,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:01:21,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873406699] [2022-11-20 11:01:21,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873406699] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:01:21,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139478546] [2022-11-20 11:01:21,508 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:01:21,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:01:21,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:01:21,514 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:01:21,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 11:01:21,627 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 11:01:21,628 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:01:21,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 11:01:21,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:01:21,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-20 11:01:22,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 11:01:22,231 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-20 11:01:22,291 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2022-11-20 11:01:22,364 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2022-11-20 11:01:22,364 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:01:22,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139478546] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:01:22,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:01:22,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [17] total 24 [2022-11-20 11:01:22,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363194698] [2022-11-20 11:01:22,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:01:22,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 11:01:22,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:01:22,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 11:01:22,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=453, Unknown=0, NotChecked=0, Total=552 [2022-11-20 11:01:22,369 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 94 [2022-11-20 11:01:22,370 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 116 transitions, 484 flow. Second operand has 9 states, 9 states have (on average 68.44444444444444) internal successors, (616), 9 states have internal predecessors, (616), 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) [2022-11-20 11:01:22,370 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:01:22,370 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 94 [2022-11-20 11:01:22,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:01:22,575 INFO L130 PetriNetUnfolder]: 42/325 cut-off events. [2022-11-20 11:01:22,575 INFO L131 PetriNetUnfolder]: For 215/240 co-relation queries the response was YES. [2022-11-20 11:01:22,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 662 conditions, 325 events. 42/325 cut-off events. For 215/240 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1286 event pairs, 23 based on Foata normal form. 5/281 useless extension candidates. Maximal degree in co-relation 468. Up to 96 conditions per place. [2022-11-20 11:01:22,578 INFO L137 encePairwiseOnDemand]: 85/94 looper letters, 29 selfloop transitions, 10 changer transitions 1/123 dead transitions. [2022-11-20 11:01:22,579 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 123 transitions, 590 flow [2022-11-20 11:01:22,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 11:01:22,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-20 11:01:22,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 569 transitions. [2022-11-20 11:01:22,582 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7566489361702128 [2022-11-20 11:01:22,582 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 569 transitions. [2022-11-20 11:01:22,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 569 transitions. [2022-11-20 11:01:22,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:01:22,583 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 569 transitions. [2022-11-20 11:01:22,585 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 71.125) internal successors, (569), 8 states have internal predecessors, (569), 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) [2022-11-20 11:01:22,587 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 94.0) internal successors, (846), 9 states have internal predecessors, (846), 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) [2022-11-20 11:01:22,587 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 94.0) internal successors, (846), 9 states have internal predecessors, (846), 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) [2022-11-20 11:01:22,588 INFO L175 Difference]: Start difference. First operand has 138 places, 116 transitions, 484 flow. Second operand 8 states and 569 transitions. [2022-11-20 11:01:22,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 123 transitions, 590 flow [2022-11-20 11:01:22,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 123 transitions, 546 flow, removed 15 selfloop flow, removed 7 redundant places. [2022-11-20 11:01:22,594 INFO L231 Difference]: Finished difference. Result has 141 places, 120 transitions, 499 flow [2022-11-20 11:01:22,595 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=440, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=499, PETRI_PLACES=141, PETRI_TRANSITIONS=120} [2022-11-20 11:01:22,596 INFO L288 CegarLoopForPetriNet]: 93 programPoint places, 48 predicate places. [2022-11-20 11:01:22,596 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 120 transitions, 499 flow [2022-11-20 11:01:22,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 68.44444444444444) internal successors, (616), 9 states have internal predecessors, (616), 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) [2022-11-20 11:01:22,597 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:01:22,597 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:01:22,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 11:01:22,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-20 11:01:22,804 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-20 11:01:22,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:01:22,804 INFO L85 PathProgramCache]: Analyzing trace with hash -333512459, now seen corresponding path program 1 times [2022-11-20 11:01:22,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:01:22,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806238570] [2022-11-20 11:01:22,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:01:22,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:01:22,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:01:23,262 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:01:23,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:01:23,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806238570] [2022-11-20 11:01:23,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806238570] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:01:23,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [567239629] [2022-11-20 11:01:23,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:01:23,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:01:23,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:01:23,268 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:01:23,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 11:01:23,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:01:23,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 11:01:23,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:01:23,551 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:01:23,553 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:01:23,866 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:01:23,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [567239629] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:01:23,867 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:01:23,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-20 11:01:23,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196724559] [2022-11-20 11:01:23,867 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:01:23,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-20 11:01:23,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:01:23,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-20 11:01:23,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-20 11:01:23,872 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 94 [2022-11-20 11:01:23,874 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 120 transitions, 499 flow. Second operand has 23 states, 23 states have (on average 81.30434782608695) internal successors, (1870), 23 states have internal predecessors, (1870), 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) [2022-11-20 11:01:23,875 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:01:23,875 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 94 [2022-11-20 11:01:23,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:01:24,416 INFO L130 PetriNetUnfolder]: 10/235 cut-off events. [2022-11-20 11:01:24,417 INFO L131 PetriNetUnfolder]: For 206/209 co-relation queries the response was YES. [2022-11-20 11:01:24,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 535 conditions, 235 events. 10/235 cut-off events. For 206/209 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 478 event pairs, 0 based on Foata normal form. 3/219 useless extension candidates. Maximal degree in co-relation 433. Up to 17 conditions per place. [2022-11-20 11:01:24,419 INFO L137 encePairwiseOnDemand]: 88/94 looper letters, 45 selfloop transitions, 30 changer transitions 0/163 dead transitions. [2022-11-20 11:01:24,419 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 163 transitions, 847 flow [2022-11-20 11:01:24,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-20 11:01:24,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-20 11:01:24,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 2418 transitions. [2022-11-20 11:01:24,426 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8574468085106383 [2022-11-20 11:01:24,427 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 2418 transitions. [2022-11-20 11:01:24,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 2418 transitions. [2022-11-20 11:01:24,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:01:24,429 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 2418 transitions. [2022-11-20 11:01:24,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 80.6) internal successors, (2418), 30 states have internal predecessors, (2418), 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) [2022-11-20 11:01:24,442 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 94.0) internal successors, (2914), 31 states have internal predecessors, (2914), 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) [2022-11-20 11:01:24,444 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 94.0) internal successors, (2914), 31 states have internal predecessors, (2914), 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) [2022-11-20 11:01:24,444 INFO L175 Difference]: Start difference. First operand has 141 places, 120 transitions, 499 flow. Second operand 30 states and 2418 transitions. [2022-11-20 11:01:24,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 163 transitions, 847 flow [2022-11-20 11:01:24,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 163 transitions, 837 flow, removed 2 selfloop flow, removed 3 redundant places. [2022-11-20 11:01:24,451 INFO L231 Difference]: Finished difference. Result has 170 places, 130 transitions, 655 flow [2022-11-20 11:01:24,452 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=489, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=655, PETRI_PLACES=170, PETRI_TRANSITIONS=130} [2022-11-20 11:01:24,452 INFO L288 CegarLoopForPetriNet]: 93 programPoint places, 77 predicate places. [2022-11-20 11:01:24,452 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 130 transitions, 655 flow [2022-11-20 11:01:24,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 81.30434782608695) internal successors, (1870), 23 states have internal predecessors, (1870), 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) [2022-11-20 11:01:24,454 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:01:24,454 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:01:24,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-20 11:01:24,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-20 11:01:24,661 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-20 11:01:24,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:01:24,662 INFO L85 PathProgramCache]: Analyzing trace with hash -274946296, now seen corresponding path program 2 times [2022-11-20 11:01:24,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:01:24,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033563656] [2022-11-20 11:01:24,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:01:24,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:01:24,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:01:24,901 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-20 11:01:24,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:01:24,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033563656] [2022-11-20 11:01:24,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033563656] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:01:24,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:01:24,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:01:24,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687254603] [2022-11-20 11:01:24,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:01:24,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:01:24,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:01:24,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:01:24,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:01:24,906 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 94 [2022-11-20 11:01:24,907 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 130 transitions, 655 flow. Second operand has 6 states, 6 states have (on average 77.5) internal successors, (465), 6 states have internal predecessors, (465), 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) [2022-11-20 11:01:24,907 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:01:24,907 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 94 [2022-11-20 11:01:24,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:01:25,011 INFO L130 PetriNetUnfolder]: 10/231 cut-off events. [2022-11-20 11:01:25,011 INFO L131 PetriNetUnfolder]: For 249/250 co-relation queries the response was YES. [2022-11-20 11:01:25,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 532 conditions, 231 events. 10/231 cut-off events. For 249/250 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 455 event pairs, 0 based on Foata normal form. 0/216 useless extension candidates. Maximal degree in co-relation 415. Up to 16 conditions per place. [2022-11-20 11:01:25,014 INFO L137 encePairwiseOnDemand]: 87/94 looper letters, 10 selfloop transitions, 6 changer transitions 0/129 dead transitions. [2022-11-20 11:01:25,014 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 129 transitions, 685 flow [2022-11-20 11:01:25,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:01:25,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-20 11:01:25,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 546 transitions. [2022-11-20 11:01:25,017 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8297872340425532 [2022-11-20 11:01:25,017 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 546 transitions. [2022-11-20 11:01:25,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 546 transitions. [2022-11-20 11:01:25,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:01:25,018 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 546 transitions. [2022-11-20 11:01:25,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 78.0) internal successors, (546), 7 states have internal predecessors, (546), 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) [2022-11-20 11:01:25,022 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 94.0) internal successors, (752), 8 states have internal predecessors, (752), 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) [2022-11-20 11:01:25,023 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 94.0) internal successors, (752), 8 states have internal predecessors, (752), 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) [2022-11-20 11:01:25,023 INFO L175 Difference]: Start difference. First operand has 170 places, 130 transitions, 655 flow. Second operand 7 states and 546 transitions. [2022-11-20 11:01:25,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 129 transitions, 685 flow [2022-11-20 11:01:25,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 129 transitions, 639 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-11-20 11:01:25,031 INFO L231 Difference]: Finished difference. Result has 157 places, 129 transitions, 619 flow [2022-11-20 11:01:25,031 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=607, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=619, PETRI_PLACES=157, PETRI_TRANSITIONS=129} [2022-11-20 11:01:25,032 INFO L288 CegarLoopForPetriNet]: 93 programPoint places, 64 predicate places. [2022-11-20 11:01:25,032 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 129 transitions, 619 flow [2022-11-20 11:01:25,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.5) internal successors, (465), 6 states have internal predecessors, (465), 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) [2022-11-20 11:01:25,033 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:01:25,033 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:01:25,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 11:01:25,034 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-20 11:01:25,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:01:25,035 INFO L85 PathProgramCache]: Analyzing trace with hash 66599670, now seen corresponding path program 1 times [2022-11-20 11:01:25,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:01:25,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032857916] [2022-11-20 11:01:25,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:01:25,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:01:25,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:01:25,226 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-20 11:01:25,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:01:25,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032857916] [2022-11-20 11:01:25,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032857916] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:01:25,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:01:25,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:01:25,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821157603] [2022-11-20 11:01:25,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:01:25,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:01:25,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:01:25,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:01:25,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:01:25,234 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 94 [2022-11-20 11:01:25,235 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 129 transitions, 619 flow. Second operand has 5 states, 5 states have (on average 79.8) internal successors, (399), 5 states have internal predecessors, (399), 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) [2022-11-20 11:01:25,235 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:01:25,236 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 94 [2022-11-20 11:01:25,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:01:25,362 INFO L130 PetriNetUnfolder]: 10/227 cut-off events. [2022-11-20 11:01:25,362 INFO L131 PetriNetUnfolder]: For 243/244 co-relation queries the response was YES. [2022-11-20 11:01:25,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 516 conditions, 227 events. 10/227 cut-off events. For 243/244 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 422 event pairs, 0 based on Foata normal form. 0/216 useless extension candidates. Maximal degree in co-relation 396. Up to 16 conditions per place. [2022-11-20 11:01:25,365 INFO L137 encePairwiseOnDemand]: 88/94 looper letters, 9 selfloop transitions, 5 changer transitions 0/128 dead transitions. [2022-11-20 11:01:25,365 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 128 transitions, 645 flow [2022-11-20 11:01:25,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:01:25,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:01:25,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 480 transitions. [2022-11-20 11:01:25,370 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.851063829787234 [2022-11-20 11:01:25,370 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 480 transitions. [2022-11-20 11:01:25,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 480 transitions. [2022-11-20 11:01:25,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:01:25,372 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 480 transitions. [2022-11-20 11:01:25,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 80.0) internal successors, (480), 6 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:01:25,377 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 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) [2022-11-20 11:01:25,378 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 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) [2022-11-20 11:01:25,378 INFO L175 Difference]: Start difference. First operand has 157 places, 129 transitions, 619 flow. Second operand 6 states and 480 transitions. [2022-11-20 11:01:25,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 128 transitions, 645 flow [2022-11-20 11:01:25,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 128 transitions, 633 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-20 11:01:25,386 INFO L231 Difference]: Finished difference. Result has 155 places, 128 transitions, 615 flow [2022-11-20 11:01:25,388 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=605, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=615, PETRI_PLACES=155, PETRI_TRANSITIONS=128} [2022-11-20 11:01:25,389 INFO L288 CegarLoopForPetriNet]: 93 programPoint places, 62 predicate places. [2022-11-20 11:01:25,389 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 128 transitions, 615 flow [2022-11-20 11:01:25,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 79.8) internal successors, (399), 5 states have internal predecessors, (399), 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) [2022-11-20 11:01:25,390 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:01:25,390 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:01:25,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 11:01:25,391 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-20 11:01:25,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:01:25,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1769332419, now seen corresponding path program 1 times [2022-11-20 11:01:25,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:01:25,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318453459] [2022-11-20 11:01:25,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:01:25,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:01:25,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:01:25,992 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-20 11:01:25,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:01:25,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318453459] [2022-11-20 11:01:25,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318453459] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:01:25,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:01:25,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 11:01:25,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025428502] [2022-11-20 11:01:25,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:01:25,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 11:01:25,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:01:25,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 11:01:25,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:01:25,995 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 94 [2022-11-20 11:01:25,996 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 128 transitions, 615 flow. Second operand has 10 states, 10 states have (on average 66.6) internal successors, (666), 10 states have internal predecessors, (666), 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) [2022-11-20 11:01:25,997 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:01:25,997 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 94 [2022-11-20 11:01:25,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:01:26,402 INFO L130 PetriNetUnfolder]: 38/326 cut-off events. [2022-11-20 11:01:26,402 INFO L131 PetriNetUnfolder]: For 326/363 co-relation queries the response was YES. [2022-11-20 11:01:26,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 749 conditions, 326 events. 38/326 cut-off events. For 326/363 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1128 event pairs, 4 based on Foata normal form. 18/322 useless extension candidates. Maximal degree in co-relation 488. Up to 41 conditions per place. [2022-11-20 11:01:26,405 INFO L137 encePairwiseOnDemand]: 82/94 looper letters, 34 selfloop transitions, 13 changer transitions 15/151 dead transitions. [2022-11-20 11:01:26,405 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 151 transitions, 833 flow [2022-11-20 11:01:26,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 11:01:26,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 11:01:26,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 772 transitions. [2022-11-20 11:01:26,408 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.746615087040619 [2022-11-20 11:01:26,408 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 772 transitions. [2022-11-20 11:01:26,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 772 transitions. [2022-11-20 11:01:26,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:01:26,409 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 772 transitions. [2022-11-20 11:01:26,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 70.18181818181819) internal successors, (772), 11 states have internal predecessors, (772), 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) [2022-11-20 11:01:26,414 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 94.0) internal successors, (1128), 12 states have internal predecessors, (1128), 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) [2022-11-20 11:01:26,414 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 94.0) internal successors, (1128), 12 states have internal predecessors, (1128), 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) [2022-11-20 11:01:26,415 INFO L175 Difference]: Start difference. First operand has 155 places, 128 transitions, 615 flow. Second operand 11 states and 772 transitions. [2022-11-20 11:01:26,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 151 transitions, 833 flow [2022-11-20 11:01:26,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 151 transitions, 823 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:01:26,422 INFO L231 Difference]: Finished difference. Result has 163 places, 126 transitions, 636 flow [2022-11-20 11:01:26,423 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=605, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=636, PETRI_PLACES=163, PETRI_TRANSITIONS=126} [2022-11-20 11:01:26,424 INFO L288 CegarLoopForPetriNet]: 93 programPoint places, 70 predicate places. [2022-11-20 11:01:26,424 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 126 transitions, 636 flow [2022-11-20 11:01:26,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 66.6) internal successors, (666), 10 states have internal predecessors, (666), 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) [2022-11-20 11:01:26,425 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:01:26,425 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:01:26,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 11:01:26,425 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-20 11:01:26,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:01:26,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1650842700, now seen corresponding path program 1 times [2022-11-20 11:01:26,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:01:26,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377528050] [2022-11-20 11:01:26,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:01:26,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:01:26,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:01:26,902 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-20 11:01:26,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:01:26,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377528050] [2022-11-20 11:01:26,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377528050] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:01:26,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:01:26,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 11:01:26,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056158863] [2022-11-20 11:01:26,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:01:26,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 11:01:26,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:01:26,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 11:01:26,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:01:26,906 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 94 [2022-11-20 11:01:26,907 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 126 transitions, 636 flow. Second operand has 10 states, 10 states have (on average 66.3) internal successors, (663), 10 states have internal predecessors, (663), 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) [2022-11-20 11:01:26,908 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:01:26,908 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 94 [2022-11-20 11:01:26,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:01:27,286 INFO L130 PetriNetUnfolder]: 62/377 cut-off events. [2022-11-20 11:01:27,286 INFO L131 PetriNetUnfolder]: For 370/386 co-relation queries the response was YES. [2022-11-20 11:01:27,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 878 conditions, 377 events. 62/377 cut-off events. For 370/386 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1354 event pairs, 25 based on Foata normal form. 3/371 useless extension candidates. Maximal degree in co-relation 837. Up to 73 conditions per place. [2022-11-20 11:01:27,290 INFO L137 encePairwiseOnDemand]: 81/94 looper letters, 32 selfloop transitions, 16 changer transitions 12/154 dead transitions. [2022-11-20 11:01:27,291 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 154 transitions, 850 flow [2022-11-20 11:01:27,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 11:01:27,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-20 11:01:27,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 840 transitions. [2022-11-20 11:01:27,293 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7446808510638298 [2022-11-20 11:01:27,294 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 840 transitions. [2022-11-20 11:01:27,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 840 transitions. [2022-11-20 11:01:27,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:01:27,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 840 transitions. [2022-11-20 11:01:27,297 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 70.0) internal successors, (840), 12 states have internal predecessors, (840), 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) [2022-11-20 11:01:27,299 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 94.0) internal successors, (1222), 13 states have internal predecessors, (1222), 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) [2022-11-20 11:01:27,300 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 94.0) internal successors, (1222), 13 states have internal predecessors, (1222), 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) [2022-11-20 11:01:27,300 INFO L175 Difference]: Start difference. First operand has 163 places, 126 transitions, 636 flow. Second operand 12 states and 840 transitions. [2022-11-20 11:01:27,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 154 transitions, 850 flow [2022-11-20 11:01:27,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 154 transitions, 823 flow, removed 3 selfloop flow, removed 8 redundant places. [2022-11-20 11:01:27,333 INFO L231 Difference]: Finished difference. Result has 171 places, 130 transitions, 699 flow [2022-11-20 11:01:27,333 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=615, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=699, PETRI_PLACES=171, PETRI_TRANSITIONS=130} [2022-11-20 11:01:27,334 INFO L288 CegarLoopForPetriNet]: 93 programPoint places, 78 predicate places. [2022-11-20 11:01:27,334 INFO L495 AbstractCegarLoop]: Abstraction has has 171 places, 130 transitions, 699 flow [2022-11-20 11:01:27,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 66.3) internal successors, (663), 10 states have internal predecessors, (663), 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) [2022-11-20 11:01:27,335 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:01:27,335 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:01:27,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 11:01:27,336 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-20 11:01:27,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:01:27,337 INFO L85 PathProgramCache]: Analyzing trace with hash -919998386, now seen corresponding path program 1 times [2022-11-20 11:01:27,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:01:27,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718326534] [2022-11-20 11:01:27,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:01:27,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:01:27,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:01:28,242 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-20 11:01:28,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:01:28,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718326534] [2022-11-20 11:01:28,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718326534] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:01:28,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:01:28,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:01:28,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127486664] [2022-11-20 11:01:28,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:01:28,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:01:28,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:01:28,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:01:28,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:01:28,246 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 94 [2022-11-20 11:01:28,247 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 130 transitions, 699 flow. Second operand has 13 states, 13 states have (on average 59.46153846153846) internal successors, (773), 13 states have internal predecessors, (773), 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) [2022-11-20 11:01:28,247 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:01:28,247 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 94 [2022-11-20 11:01:28,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:01:29,122 INFO L130 PetriNetUnfolder]: 100/435 cut-off events. [2022-11-20 11:01:29,122 INFO L131 PetriNetUnfolder]: For 630/674 co-relation queries the response was YES. [2022-11-20 11:01:29,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1163 conditions, 435 events. 100/435 cut-off events. For 630/674 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1626 event pairs, 0 based on Foata normal form. 23/455 useless extension candidates. Maximal degree in co-relation 1020. Up to 44 conditions per place. [2022-11-20 11:01:29,129 INFO L137 encePairwiseOnDemand]: 80/94 looper letters, 60 selfloop transitions, 23 changer transitions 25/190 dead transitions. [2022-11-20 11:01:29,130 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 190 transitions, 1143 flow [2022-11-20 11:01:29,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-20 11:01:29,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-11-20 11:01:29,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 1435 transitions. [2022-11-20 11:01:29,134 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6637372802960222 [2022-11-20 11:01:29,134 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 1435 transitions. [2022-11-20 11:01:29,134 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 1435 transitions. [2022-11-20 11:01:29,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:01:29,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 1435 transitions. [2022-11-20 11:01:29,139 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 62.391304347826086) internal successors, (1435), 23 states have internal predecessors, (1435), 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) [2022-11-20 11:01:29,143 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 94.0) internal successors, (2256), 24 states have internal predecessors, (2256), 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) [2022-11-20 11:01:29,144 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 94.0) internal successors, (2256), 24 states have internal predecessors, (2256), 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) [2022-11-20 11:01:29,145 INFO L175 Difference]: Start difference. First operand has 171 places, 130 transitions, 699 flow. Second operand 23 states and 1435 transitions. [2022-11-20 11:01:29,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 190 transitions, 1143 flow [2022-11-20 11:01:29,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 190 transitions, 1123 flow, removed 2 selfloop flow, removed 8 redundant places. [2022-11-20 11:01:29,156 INFO L231 Difference]: Finished difference. Result has 183 places, 128 transitions, 709 flow [2022-11-20 11:01:29,157 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=673, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=709, PETRI_PLACES=183, PETRI_TRANSITIONS=128} [2022-11-20 11:01:29,158 INFO L288 CegarLoopForPetriNet]: 93 programPoint places, 90 predicate places. [2022-11-20 11:01:29,158 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 128 transitions, 709 flow [2022-11-20 11:01:29,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 59.46153846153846) internal successors, (773), 13 states have internal predecessors, (773), 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) [2022-11-20 11:01:29,159 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:01:29,159 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:01:29,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 11:01:29,161 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-20 11:01:29,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:01:29,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1309997886, now seen corresponding path program 1 times [2022-11-20 11:01:29,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:01:29,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097065704] [2022-11-20 11:01:29,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:01:29,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:01:29,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:01:30,225 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-20 11:01:30,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:01:30,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097065704] [2022-11-20 11:01:30,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097065704] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:01:30,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:01:30,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:01:30,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401823029] [2022-11-20 11:01:30,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:01:30,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:01:30,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:01:30,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:01:30,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:01:30,229 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 94 [2022-11-20 11:01:30,230 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 128 transitions, 709 flow. Second operand has 13 states, 13 states have (on average 57.61538461538461) internal successors, (749), 13 states have internal predecessors, (749), 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) [2022-11-20 11:01:30,230 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:01:30,230 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 94 [2022-11-20 11:01:30,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:01:31,008 INFO L130 PetriNetUnfolder]: 73/366 cut-off events. [2022-11-20 11:01:31,008 INFO L131 PetriNetUnfolder]: For 575/618 co-relation queries the response was YES. [2022-11-20 11:01:31,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 963 conditions, 366 events. 73/366 cut-off events. For 575/618 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1191 event pairs, 0 based on Foata normal form. 24/385 useless extension candidates. Maximal degree in co-relation 738. Up to 61 conditions per place. [2022-11-20 11:01:31,012 INFO L137 encePairwiseOnDemand]: 79/94 looper letters, 53 selfloop transitions, 27 changer transitions 5/165 dead transitions. [2022-11-20 11:01:31,015 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 165 transitions, 1014 flow [2022-11-20 11:01:31,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 11:01:31,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-20 11:01:31,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1260 transitions. [2022-11-20 11:01:31,018 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6382978723404256 [2022-11-20 11:01:31,019 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1260 transitions. [2022-11-20 11:01:31,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1260 transitions. [2022-11-20 11:01:31,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:01:31,020 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1260 transitions. [2022-11-20 11:01:31,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 60.0) internal successors, (1260), 21 states have internal predecessors, (1260), 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) [2022-11-20 11:01:31,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 94.0) internal successors, (2068), 22 states have internal predecessors, (2068), 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) [2022-11-20 11:01:31,038 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 94.0) internal successors, (2068), 22 states have internal predecessors, (2068), 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) [2022-11-20 11:01:31,039 INFO L175 Difference]: Start difference. First operand has 183 places, 128 transitions, 709 flow. Second operand 21 states and 1260 transitions. [2022-11-20 11:01:31,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 165 transitions, 1014 flow [2022-11-20 11:01:31,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 165 transitions, 881 flow, removed 22 selfloop flow, removed 22 redundant places. [2022-11-20 11:01:31,048 INFO L231 Difference]: Finished difference. Result has 176 places, 131 transitions, 671 flow [2022-11-20 11:01:31,049 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=606, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=671, PETRI_PLACES=176, PETRI_TRANSITIONS=131} [2022-11-20 11:01:31,049 INFO L288 CegarLoopForPetriNet]: 93 programPoint places, 83 predicate places. [2022-11-20 11:01:31,049 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 131 transitions, 671 flow [2022-11-20 11:01:31,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 57.61538461538461) internal successors, (749), 13 states have internal predecessors, (749), 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) [2022-11-20 11:01:31,060 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:01:31,060 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:01:31,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 11:01:31,061 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-20 11:01:31,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:01:31,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1544821368, now seen corresponding path program 1 times [2022-11-20 11:01:31,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:01:31,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992680234] [2022-11-20 11:01:31,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:01:31,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:01:31,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:01:31,947 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-20 11:01:31,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:01:31,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992680234] [2022-11-20 11:01:31,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992680234] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:01:31,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:01:31,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:01:31,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233791845] [2022-11-20 11:01:31,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:01:31,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:01:31,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:01:31,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:01:31,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:01:31,951 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 94 [2022-11-20 11:01:31,953 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 131 transitions, 671 flow. Second operand has 13 states, 13 states have (on average 59.53846153846154) internal successors, (774), 13 states have internal predecessors, (774), 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) [2022-11-20 11:01:31,953 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:01:31,953 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 94 [2022-11-20 11:01:31,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:01:32,747 INFO L130 PetriNetUnfolder]: 68/357 cut-off events. [2022-11-20 11:01:32,748 INFO L131 PetriNetUnfolder]: For 344/377 co-relation queries the response was YES. [2022-11-20 11:01:32,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 871 conditions, 357 events. 68/357 cut-off events. For 344/377 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1188 event pairs, 5 based on Foata normal form. 22/376 useless extension candidates. Maximal degree in co-relation 685. Up to 50 conditions per place. [2022-11-20 11:01:32,751 INFO L137 encePairwiseOnDemand]: 80/94 looper letters, 27 selfloop transitions, 12 changer transitions 50/167 dead transitions. [2022-11-20 11:01:32,751 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 167 transitions, 952 flow [2022-11-20 11:01:32,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-20 11:01:32,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-20 11:01:32,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1125 transitions. [2022-11-20 11:01:32,757 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6648936170212766 [2022-11-20 11:01:32,757 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1125 transitions. [2022-11-20 11:01:32,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1125 transitions. [2022-11-20 11:01:32,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:01:32,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1125 transitions. [2022-11-20 11:01:32,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 62.5) internal successors, (1125), 18 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) [2022-11-20 11:01:32,764 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 94.0) internal successors, (1786), 19 states have internal predecessors, (1786), 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) [2022-11-20 11:01:32,765 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 94.0) internal successors, (1786), 19 states have internal predecessors, (1786), 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) [2022-11-20 11:01:32,766 INFO L175 Difference]: Start difference. First operand has 176 places, 131 transitions, 671 flow. Second operand 18 states and 1125 transitions. [2022-11-20 11:01:32,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 167 transitions, 952 flow [2022-11-20 11:01:32,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 167 transitions, 870 flow, removed 3 selfloop flow, removed 18 redundant places. [2022-11-20 11:01:32,775 INFO L231 Difference]: Finished difference. Result has 174 places, 105 transitions, 524 flow [2022-11-20 11:01:32,776 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=524, PETRI_PLACES=174, PETRI_TRANSITIONS=105} [2022-11-20 11:01:32,777 INFO L288 CegarLoopForPetriNet]: 93 programPoint places, 81 predicate places. [2022-11-20 11:01:32,777 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 105 transitions, 524 flow [2022-11-20 11:01:32,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 59.53846153846154) internal successors, (774), 13 states have internal predecessors, (774), 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) [2022-11-20 11:01:32,778 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:01:32,778 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:01:32,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 11:01:32,780 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-20 11:01:32,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:01:32,780 INFO L85 PathProgramCache]: Analyzing trace with hash -326754893, now seen corresponding path program 1 times [2022-11-20 11:01:32,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:01:32,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605071386] [2022-11-20 11:01:32,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:01:32,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:01:32,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:01:33,669 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-20 11:01:33,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:01:33,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605071386] [2022-11-20 11:01:33,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605071386] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:01:33,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:01:33,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:01:33,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823197542] [2022-11-20 11:01:33,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:01:33,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:01:33,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:01:33,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:01:33,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:01:33,673 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 94 [2022-11-20 11:01:33,674 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 105 transitions, 524 flow. Second operand has 13 states, 13 states have (on average 57.69230769230769) internal successors, (750), 13 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) [2022-11-20 11:01:33,674 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:01:33,674 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 94 [2022-11-20 11:01:33,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:01:34,238 INFO L130 PetriNetUnfolder]: 20/179 cut-off events. [2022-11-20 11:01:34,238 INFO L131 PetriNetUnfolder]: For 242/242 co-relation queries the response was YES. [2022-11-20 11:01:34,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 475 conditions, 179 events. 20/179 cut-off events. For 242/242 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 156 event pairs, 0 based on Foata normal form. 4/182 useless extension candidates. Maximal degree in co-relation 454. Up to 14 conditions per place. [2022-11-20 11:01:34,239 INFO L137 encePairwiseOnDemand]: 82/94 looper letters, 0 selfloop transitions, 0 changer transitions 114/114 dead transitions. [2022-11-20 11:01:34,240 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 114 transitions, 620 flow [2022-11-20 11:01:34,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 11:01:34,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-20 11:01:34,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 880 transitions. [2022-11-20 11:01:34,242 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.624113475177305 [2022-11-20 11:01:34,243 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 880 transitions. [2022-11-20 11:01:34,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 880 transitions. [2022-11-20 11:01:34,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:01:34,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 880 transitions. [2022-11-20 11:01:34,246 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 58.666666666666664) internal successors, (880), 15 states have internal predecessors, (880), 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) [2022-11-20 11:01:34,248 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 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) [2022-11-20 11:01:34,249 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 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) [2022-11-20 11:01:34,249 INFO L175 Difference]: Start difference. First operand has 174 places, 105 transitions, 524 flow. Second operand 15 states and 880 transitions. [2022-11-20 11:01:34,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 114 transitions, 620 flow [2022-11-20 11:01:34,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 114 transitions, 581 flow, removed 2 selfloop flow, removed 16 redundant places. [2022-11-20 11:01:34,255 INFO L231 Difference]: Finished difference. Result has 143 places, 0 transitions, 0 flow [2022-11-20 11:01:34,255 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=485, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=0, PETRI_PLACES=143, PETRI_TRANSITIONS=0} [2022-11-20 11:01:34,256 INFO L288 CegarLoopForPetriNet]: 93 programPoint places, 50 predicate places. [2022-11-20 11:01:34,256 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 0 transitions, 0 flow [2022-11-20 11:01:34,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 57.69230769230769) internal successors, (750), 13 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) [2022-11-20 11:01:34,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2022-11-20 11:01:34,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2022-11-20 11:01:34,261 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2022-11-20 11:01:34,261 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2022-11-20 11:01:34,261 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 13 remaining) [2022-11-20 11:01:34,262 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2022-11-20 11:01:34,262 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2022-11-20 11:01:34,262 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2022-11-20 11:01:34,262 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2022-11-20 11:01:34,263 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2022-11-20 11:01:34,263 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2022-11-20 11:01:34,263 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2022-11-20 11:01:34,263 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2022-11-20 11:01:34,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 11:01:34,264 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:01:34,271 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 11:01:34,271 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:01:34,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:01:34 BasicIcfg [2022-11-20 11:01:34,277 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:01:34,278 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:01:34,278 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:01:34,278 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:01:34,278 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:01:15" (3/4) ... [2022-11-20 11:01:34,282 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 11:01:34,290 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-20 11:01:34,296 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-20 11:01:34,297 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-20 11:01:34,297 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 11:01:34,354 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 11:01:34,355 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:01:34,355 INFO L158 Benchmark]: Toolchain (without parser) took 21024.11ms. Allocated memory was 180.4MB in the beginning and 314.6MB in the end (delta: 134.2MB). Free memory was 148.2MB in the beginning and 154.3MB in the end (delta: -6.1MB). Peak memory consumption was 129.1MB. Max. memory is 16.1GB. [2022-11-20 11:01:34,356 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 180.4MB. Free memory is still 154.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:01:34,356 INFO L158 Benchmark]: CACSL2BoogieTranslator took 939.08ms. Allocated memory is still 180.4MB. Free memory was 147.5MB in the beginning and 120.5MB in the end (delta: 27.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-20 11:01:34,357 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.10ms. Allocated memory is still 180.4MB. Free memory was 120.5MB in the beginning and 117.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:01:34,357 INFO L158 Benchmark]: Boogie Preprocessor took 67.08ms. Allocated memory is still 180.4MB. Free memory was 117.8MB in the beginning and 116.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:01:34,357 INFO L158 Benchmark]: RCFGBuilder took 696.51ms. Allocated memory is still 180.4MB. Free memory was 116.3MB in the beginning and 101.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 11:01:34,358 INFO L158 Benchmark]: TraceAbstraction took 19139.54ms. Allocated memory was 180.4MB in the beginning and 314.6MB in the end (delta: 134.2MB). Free memory was 101.0MB in the beginning and 157.5MB in the end (delta: -56.5MB). Peak memory consumption was 80.9MB. Max. memory is 16.1GB. [2022-11-20 11:01:34,358 INFO L158 Benchmark]: Witness Printer took 77.24ms. Allocated memory is still 314.6MB. Free memory was 157.5MB in the beginning and 154.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:01:34,361 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 180.4MB. Free memory is still 154.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 939.08ms. Allocated memory is still 180.4MB. Free memory was 147.5MB in the beginning and 120.5MB in the end (delta: 27.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.10ms. Allocated memory is still 180.4MB. Free memory was 120.5MB in the beginning and 117.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.08ms. Allocated memory is still 180.4MB. Free memory was 117.8MB in the beginning and 116.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 696.51ms. Allocated memory is still 180.4MB. Free memory was 116.3MB in the beginning and 101.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 19139.54ms. Allocated memory was 180.4MB in the beginning and 314.6MB in the end (delta: 134.2MB). Free memory was 101.0MB in the beginning and 157.5MB in the end (delta: -56.5MB). Peak memory consumption was 80.9MB. Max. memory is 16.1GB. * Witness Printer took 77.24ms. Allocated memory is still 314.6MB. Free memory was 157.5MB in the beginning and 154.3MB 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: 937]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 937]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 944]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 944]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 931]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 931]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: 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, 126 locations, 13 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: 18.9s, OverallIterations: 16, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 6.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1467 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1467 mSDsluCounter, 763 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 62 IncrementalHoareTripleChecker+Unchecked, 590 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1406 IncrementalHoareTripleChecker+Invalid, 1525 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 173 mSDtfsCounter, 1406 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 807 GetRequests, 509 SyntacticMatches, 11 SemanticMatches, 287 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1412 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=709occurred in iteration=13, InterpolantAutomatonStates: 206, 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: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 9.3s InterpolantComputationTime, 1710 NumberOfCodeBlocks, 1640 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 1873 ConstructedInterpolants, 5 QuantifiedInterpolants, 11055 SizeOfPredicates, 39 NumberOfNonLiveVariables, 618 ConjunctsInSsa, 51 ConjunctsInUnsatCore, 25 InterpolantComputations, 13 PerfectInterpolantSequences, 2787/3507 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-20 11:01:34,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c194482f-c7b1-44cd-af5e-806b714227a4/bin/uautomizer-ug76WZFUDN/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