./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-lit/sssc12_variant.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_eb0664f1-425a-4503-983c-0ac33e4f4180/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb0664f1-425a-4503-983c-0ac33e4f4180/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb0664f1-425a-4503-983c-0ac33e4f4180/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb0664f1-425a-4503-983c-0ac33e4f4180/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-lit/sssc12_variant.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb0664f1-425a-4503-983c-0ac33e4f4180/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb0664f1-425a-4503-983c-0ac33e4f4180/bin/utaipan-gh47qXpMRh --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 726fce4da80b267da781dea82372ef1c43891e7d5d6ac2b3894c611bc25a242b --- 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-2329fc7 [2022-12-14 09:04:25,562 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:04:25,564 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:04:25,582 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:04:25,582 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:04:25,583 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:04:25,584 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:04:25,586 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:04:25,587 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:04:25,588 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:04:25,589 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:04:25,590 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:04:25,590 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:04:25,591 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:04:25,592 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:04:25,593 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:04:25,593 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:04:25,594 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:04:25,596 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:04:25,597 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:04:25,599 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:04:25,600 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:04:25,601 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:04:25,601 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:04:25,604 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:04:25,605 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:04:25,605 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:04:25,606 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:04:25,606 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:04:25,607 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:04:25,607 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:04:25,608 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:04:25,609 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:04:25,609 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:04:25,610 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:04:25,610 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:04:25,611 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:04:25,611 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:04:25,611 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:04:25,612 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:04:25,612 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:04:25,613 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb0664f1-425a-4503-983c-0ac33e4f4180/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 09:04:25,633 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:04:25,633 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:04:25,634 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:04:25,634 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:04:25,634 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:04:25,634 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:04:25,635 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:04:25,635 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:04:25,635 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:04:25,635 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:04:25,635 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:04:25,635 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:04:25,636 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:04:25,636 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:04:25,636 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:04:25,636 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:04:25,636 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:04:25,636 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:04:25,637 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:04:25,637 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 09:04:25,637 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 09:04:25,638 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:04:25,638 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 09:04:25,638 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:04:25,638 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:04:25,638 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:04:25,638 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:04:25,639 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 09:04:25,639 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 09:04:25,639 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:04:25,639 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:04:25,639 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:04:25,639 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:04:25,640 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:04:25,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:04:25,640 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:04:25,640 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:04:25,640 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:04:25,640 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:04:25,641 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:04:25,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:04:25,641 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:04:25,641 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:04:25,641 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_eb0664f1-425a-4503-983c-0ac33e4f4180/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb0664f1-425a-4503-983c-0ac33e4f4180/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 726fce4da80b267da781dea82372ef1c43891e7d5d6ac2b3894c611bc25a242b [2022-12-14 09:04:25,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:04:25,855 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:04:25,857 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:04:25,858 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:04:25,858 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:04:25,859 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb0664f1-425a-4503-983c-0ac33e4f4180/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread-lit/sssc12_variant.i [2022-12-14 09:04:28,419 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:04:28,625 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:04:28,625 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb0664f1-425a-4503-983c-0ac33e4f4180/sv-benchmarks/c/pthread-lit/sssc12_variant.i [2022-12-14 09:04:28,635 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb0664f1-425a-4503-983c-0ac33e4f4180/bin/utaipan-gh47qXpMRh/data/c582830bc/575399f725a0438b8f6c0c56f7a41f49/FLAG369155b92 [2022-12-14 09:04:28,993 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb0664f1-425a-4503-983c-0ac33e4f4180/bin/utaipan-gh47qXpMRh/data/c582830bc/575399f725a0438b8f6c0c56f7a41f49 [2022-12-14 09:04:28,995 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:04:28,996 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:04:28,996 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:04:28,997 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:04:28,999 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:04:29,000 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:04:28" (1/1) ... [2022-12-14 09:04:29,001 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a3fa656 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:29, skipping insertion in model container [2022-12-14 09:04:29,001 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:04:28" (1/1) ... [2022-12-14 09:04:29,006 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:04:29,033 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:04:29,272 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb0664f1-425a-4503-983c-0ac33e4f4180/sv-benchmarks/c/pthread-lit/sssc12_variant.i[46865,46878] [2022-12-14 09:04:29,274 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 09:04:29,275 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 09:04:29,276 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 09:04:29,276 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 09:04:29,285 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:04:29,292 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:04:29,324 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb0664f1-425a-4503-983c-0ac33e4f4180/sv-benchmarks/c/pthread-lit/sssc12_variant.i[46865,46878] [2022-12-14 09:04:29,325 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 09:04:29,325 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 09:04:29,325 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 09:04:29,326 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 09:04:29,330 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:04:29,365 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:04:29,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:29 WrapperNode [2022-12-14 09:04:29,366 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:04:29,366 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:04:29,366 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:04:29,366 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:04:29,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:29" (1/1) ... [2022-12-14 09:04:29,383 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:29" (1/1) ... [2022-12-14 09:04:29,398 INFO L138 Inliner]: procedures = 275, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 93 [2022-12-14 09:04:29,399 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:04:29,399 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:04:29,400 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:04:29,400 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:04:29,407 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:29" (1/1) ... [2022-12-14 09:04:29,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:29" (1/1) ... [2022-12-14 09:04:29,409 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:29" (1/1) ... [2022-12-14 09:04:29,410 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:29" (1/1) ... [2022-12-14 09:04:29,414 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:29" (1/1) ... [2022-12-14 09:04:29,417 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:29" (1/1) ... [2022-12-14 09:04:29,418 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:29" (1/1) ... [2022-12-14 09:04:29,419 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:29" (1/1) ... [2022-12-14 09:04:29,421 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:04:29,422 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:04:29,422 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:04:29,422 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:04:29,422 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:29" (1/1) ... [2022-12-14 09:04:29,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:04:29,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb0664f1-425a-4503-983c-0ac33e4f4180/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:04:29,444 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb0664f1-425a-4503-983c-0ac33e4f4180/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:04:29,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb0664f1-425a-4503-983c-0ac33e4f4180/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:04:29,472 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-14 09:04:29,472 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2022-12-14 09:04:29,472 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2022-12-14 09:04:29,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 09:04:29,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 09:04:29,473 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-14 09:04:29,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 09:04:29,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 09:04:29,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 09:04:29,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:04:29,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:04:29,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:04:29,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:04:29,475 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 09:04:29,576 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:04:29,577 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:04:29,722 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:04:29,749 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:04:29,749 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 09:04:29,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:04:29 BoogieIcfgContainer [2022-12-14 09:04:29,751 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:04:29,753 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:04:29,754 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:04:29,757 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:04:29,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:04:28" (1/3) ... [2022-12-14 09:04:29,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35cbb1b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:04:29, skipping insertion in model container [2022-12-14 09:04:29,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:29" (2/3) ... [2022-12-14 09:04:29,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35cbb1b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:04:29, skipping insertion in model container [2022-12-14 09:04:29,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:04:29" (3/3) ... [2022-12-14 09:04:29,760 INFO L112 eAbstractionObserver]: Analyzing ICFG sssc12_variant.i [2022-12-14 09:04:29,768 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 09:04:29,779 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:04:29,779 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-14 09:04:29,779 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 09:04:29,828 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 09:04:29,857 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 09:04:29,870 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 99 transitions, 203 flow [2022-12-14 09:04:29,873 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 99 transitions, 203 flow [2022-12-14 09:04:29,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 99 transitions, 203 flow [2022-12-14 09:04:29,925 INFO L130 PetriNetUnfolder]: 7/111 cut-off events. [2022-12-14 09:04:29,925 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-14 09:04:29,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 111 events. 7/111 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 96 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 61. Up to 4 conditions per place. [2022-12-14 09:04:29,932 INFO L119 LiptonReduction]: Number of co-enabled transitions 1410 [2022-12-14 09:04:32,477 INFO L134 LiptonReduction]: Checked pairs total: 1458 [2022-12-14 09:04:32,477 INFO L136 LiptonReduction]: Total number of compositions: 111 [2022-12-14 09:04:32,482 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 19 places, 17 transitions, 39 flow [2022-12-14 09:04:32,492 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 57 states, 44 states have (on average 2.272727272727273) internal successors, (100), 56 states have internal predecessors, (100), 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) [2022-12-14 09:04:32,503 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:04:32,508 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=FINITE_AUTOMATA, 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;@7ad406ee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:04:32,508 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-12-14 09:04:32,509 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 44 states have (on average 2.272727272727273) internal successors, (100), 56 states have internal predecessors, (100), 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) [2022-12-14 09:04:32,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 09:04:32,512 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:32,513 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 09:04:32,513 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thrErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-12-14 09:04:32,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:32,516 INFO L85 PathProgramCache]: Analyzing trace with hash 14144731, now seen corresponding path program 1 times [2022-12-14 09:04:32,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:04:32,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339457546] [2022-12-14 09:04:32,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:32,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:04:32,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:04:32,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:04:32,638 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:04:32,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339457546] [2022-12-14 09:04:32,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339457546] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:04:32,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:04:32,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 09:04:32,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569524914] [2022-12-14 09:04:32,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:04:32,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 09:04:32,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:04:32,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 09:04:32,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 09:04:32,662 INFO L87 Difference]: Start difference. First operand has 57 states, 44 states have (on average 2.272727272727273) internal successors, (100), 56 states have internal predecessors, (100), 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) Second operand has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-12-14 09:04:32,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:04:32,690 INFO L93 Difference]: Finished difference Result 39 states and 66 transitions. [2022-12-14 09:04:32,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 09:04:32,692 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) Word has length 4 [2022-12-14 09:04:32,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:04:32,700 INFO L225 Difference]: With dead ends: 39 [2022-12-14 09:04:32,700 INFO L226 Difference]: Without dead ends: 39 [2022-12-14 09:04:32,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 09:04:32,704 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:04:32,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:04:32,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-12-14 09:04:32,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-12-14 09:04:32,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 34 states have (on average 1.9411764705882353) internal successors, (66), 38 states have internal predecessors, (66), 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) [2022-12-14 09:04:32,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 66 transitions. [2022-12-14 09:04:32,734 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 66 transitions. Word has length 4 [2022-12-14 09:04:32,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:04:32,735 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 66 transitions. [2022-12-14 09:04:32,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-12-14 09:04:32,735 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 66 transitions. [2022-12-14 09:04:32,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 09:04:32,736 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:32,736 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 09:04:32,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:04:32,736 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-12-14 09:04:32,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:32,737 INFO L85 PathProgramCache]: Analyzing trace with hash 14144722, now seen corresponding path program 1 times [2022-12-14 09:04:32,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:04:32,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135297886] [2022-12-14 09:04:32,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:32,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:04:32,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:04:32,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:04:32,831 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:04:32,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135297886] [2022-12-14 09:04:32,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135297886] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:04:32,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:04:32,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 09:04:32,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155818520] [2022-12-14 09:04:32,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:04:32,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:04:32,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:04:32,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:04:32,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:32,834 INFO L87 Difference]: Start difference. First operand 39 states and 66 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-12-14 09:04:32,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:04:32,851 INFO L93 Difference]: Finished difference Result 31 states and 52 transitions. [2022-12-14 09:04:32,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:04:32,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) Word has length 4 [2022-12-14 09:04:32,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:04:32,852 INFO L225 Difference]: With dead ends: 31 [2022-12-14 09:04:32,852 INFO L226 Difference]: Without dead ends: 31 [2022-12-14 09:04:32,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:32,854 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:04:32,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:04:32,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-12-14 09:04:32,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-12-14 09:04:32,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 28 states have (on average 1.8571428571428572) internal successors, (52), 30 states have internal predecessors, (52), 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) [2022-12-14 09:04:32,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 52 transitions. [2022-12-14 09:04:32,858 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 52 transitions. Word has length 4 [2022-12-14 09:04:32,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:04:32,859 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 52 transitions. [2022-12-14 09:04:32,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-12-14 09:04:32,859 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 52 transitions. [2022-12-14 09:04:32,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 09:04:32,859 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:32,859 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-12-14 09:04:32,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 09:04:32,860 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-12-14 09:04:32,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:32,860 INFO L85 PathProgramCache]: Analyzing trace with hash 708106554, now seen corresponding path program 1 times [2022-12-14 09:04:32,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:04:32,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517625403] [2022-12-14 09:04:32,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:32,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:04:32,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:04:32,883 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 09:04:32,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:04:32,907 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 09:04:32,907 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 09:04:32,908 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2022-12-14 09:04:32,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2022-12-14 09:04:32,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2022-12-14 09:04:32,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2022-12-14 09:04:32,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2022-12-14 09:04:32,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2022-12-14 09:04:32,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2022-12-14 09:04:32,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2022-12-14 09:04:32,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2022-12-14 09:04:32,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2022-12-14 09:04:32,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2022-12-14 09:04:32,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2022-12-14 09:04:32,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2022-12-14 09:04:32,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 09:04:32,913 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-14 09:04:32,914 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-14 09:04:32,914 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-12-14 09:04:32,932 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 09:04:32,934 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 09:04:32,934 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 142 places, 147 transitions, 306 flow [2022-12-14 09:04:32,934 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 142 places, 147 transitions, 306 flow [2022-12-14 09:04:32,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 142 places, 147 transitions, 306 flow [2022-12-14 09:04:32,959 INFO L130 PetriNetUnfolder]: 12/173 cut-off events. [2022-12-14 09:04:32,959 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-14 09:04:32,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 173 events. 12/173 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 341 event pairs, 0 based on Foata normal form. 0/146 useless extension candidates. Maximal degree in co-relation 112. Up to 6 conditions per place. [2022-12-14 09:04:32,963 INFO L119 LiptonReduction]: Number of co-enabled transitions 7332 [2022-12-14 09:04:35,405 INFO L134 LiptonReduction]: Checked pairs total: 24915 [2022-12-14 09:04:35,405 INFO L136 LiptonReduction]: Total number of compositions: 129 [2022-12-14 09:04:35,406 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 51 places, 50 transitions, 112 flow [2022-12-14 09:04:35,477 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2501 states, 2398 states have (on average 3.020433694745621) internal successors, (7243), 2500 states have internal predecessors, (7243), 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) [2022-12-14 09:04:35,478 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:04:35,478 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=FINITE_AUTOMATA, 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;@7ad406ee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:04:35,479 INFO L358 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2022-12-14 09:04:35,485 INFO L276 IsEmpty]: Start isEmpty. Operand has 2501 states, 2398 states have (on average 3.020433694745621) internal successors, (7243), 2500 states have internal predecessors, (7243), 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) [2022-12-14 09:04:35,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 09:04:35,485 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:35,485 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 09:04:35,486 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-12-14 09:04:35,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:35,486 INFO L85 PathProgramCache]: Analyzing trace with hash 748199165, now seen corresponding path program 1 times [2022-12-14 09:04:35,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:04:35,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633573106] [2022-12-14 09:04:35,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:35,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:04:35,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:04:35,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:04:35,539 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:04:35,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633573106] [2022-12-14 09:04:35,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633573106] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:04:35,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:04:35,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 09:04:35,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935223010] [2022-12-14 09:04:35,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:04:35,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:04:35,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:04:35,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:04:35,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:35,546 INFO L87 Difference]: Start difference. First operand has 2501 states, 2398 states have (on average 3.020433694745621) internal successors, (7243), 2500 states have internal predecessors, (7243), 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) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-12-14 09:04:35,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:04:35,652 INFO L93 Difference]: Finished difference Result 2530 states and 7239 transitions. [2022-12-14 09:04:35,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:04:35,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) Word has length 5 [2022-12-14 09:04:35,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:04:35,673 INFO L225 Difference]: With dead ends: 2530 [2022-12-14 09:04:35,673 INFO L226 Difference]: Without dead ends: 2530 [2022-12-14 09:04:35,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:35,674 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 35 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:04:35,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 16 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:04:35,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2530 states. [2022-12-14 09:04:35,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2530 to 2145. [2022-12-14 09:04:35,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2145 states, 2112 states have (on average 2.9171401515151514) internal successors, (6161), 2144 states have internal predecessors, (6161), 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) [2022-12-14 09:04:35,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2145 states to 2145 states and 6161 transitions. [2022-12-14 09:04:35,785 INFO L78 Accepts]: Start accepts. Automaton has 2145 states and 6161 transitions. Word has length 5 [2022-12-14 09:04:35,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:04:35,785 INFO L495 AbstractCegarLoop]: Abstraction has 2145 states and 6161 transitions. [2022-12-14 09:04:35,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-12-14 09:04:35,785 INFO L276 IsEmpty]: Start isEmpty. Operand 2145 states and 6161 transitions. [2022-12-14 09:04:35,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 09:04:35,786 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:35,787 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:04:35,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 09:04:35,787 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thrErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-12-14 09:04:35,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:35,787 INFO L85 PathProgramCache]: Analyzing trace with hash 858196072, now seen corresponding path program 1 times [2022-12-14 09:04:35,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:04:35,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712182694] [2022-12-14 09:04:35,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:35,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:04:35,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:04:35,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:04:35,841 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:04:35,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712182694] [2022-12-14 09:04:35,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712182694] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:04:35,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:04:35,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:04:35,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745676578] [2022-12-14 09:04:35,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:04:35,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:04:35,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:04:35,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:04:35,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:35,843 INFO L87 Difference]: Start difference. First operand 2145 states and 6161 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-12-14 09:04:35,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:04:35,899 INFO L93 Difference]: Finished difference Result 2124 states and 6011 transitions. [2022-12-14 09:04:35,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:04:35,900 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) Word has length 11 [2022-12-14 09:04:35,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:04:35,907 INFO L225 Difference]: With dead ends: 2124 [2022-12-14 09:04:35,907 INFO L226 Difference]: Without dead ends: 2124 [2022-12-14 09:04:35,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:35,908 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 26 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:04:35,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 50 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:04:35,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2124 states. [2022-12-14 09:04:35,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2124 to 2079. [2022-12-14 09:04:35,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2079 states, 2046 states have (on average 2.898338220918866) internal successors, (5930), 2078 states have internal predecessors, (5930), 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) [2022-12-14 09:04:35,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2079 states to 2079 states and 5930 transitions. [2022-12-14 09:04:35,948 INFO L78 Accepts]: Start accepts. Automaton has 2079 states and 5930 transitions. Word has length 11 [2022-12-14 09:04:35,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:04:35,949 INFO L495 AbstractCegarLoop]: Abstraction has 2079 states and 5930 transitions. [2022-12-14 09:04:35,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-12-14 09:04:35,949 INFO L276 IsEmpty]: Start isEmpty. Operand 2079 states and 5930 transitions. [2022-12-14 09:04:35,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 09:04:35,949 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:35,950 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-12-14 09:04:35,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 09:04:35,950 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-12-14 09:04:35,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:35,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1546103349, now seen corresponding path program 1 times [2022-12-14 09:04:35,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:04:35,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185871292] [2022-12-14 09:04:35,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:35,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:04:35,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:04:35,964 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 09:04:35,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:04:35,974 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 09:04:35,974 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 09:04:35,974 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 19 remaining) [2022-12-14 09:04:35,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 19 remaining) [2022-12-14 09:04:35,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 19 remaining) [2022-12-14 09:04:35,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 19 remaining) [2022-12-14 09:04:35,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 19 remaining) [2022-12-14 09:04:35,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 19 remaining) [2022-12-14 09:04:35,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 19 remaining) [2022-12-14 09:04:35,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 19 remaining) [2022-12-14 09:04:35,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 19 remaining) [2022-12-14 09:04:35,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 19 remaining) [2022-12-14 09:04:35,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 19 remaining) [2022-12-14 09:04:35,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 19 remaining) [2022-12-14 09:04:35,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 19 remaining) [2022-12-14 09:04:35,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 19 remaining) [2022-12-14 09:04:35,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 19 remaining) [2022-12-14 09:04:35,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 19 remaining) [2022-12-14 09:04:35,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 19 remaining) [2022-12-14 09:04:35,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 19 remaining) [2022-12-14 09:04:35,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 19 remaining) [2022-12-14 09:04:35,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 09:04:35,977 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-14 09:04:35,977 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-14 09:04:35,977 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-12-14 09:04:35,991 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 09:04:35,993 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 09:04:35,993 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 188 places, 195 transitions, 411 flow [2022-12-14 09:04:35,994 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 188 places, 195 transitions, 411 flow [2022-12-14 09:04:35,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 188 places, 195 transitions, 411 flow [2022-12-14 09:04:36,033 INFO L130 PetriNetUnfolder]: 17/235 cut-off events. [2022-12-14 09:04:36,034 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-14 09:04:36,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 251 conditions, 235 events. 17/235 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 629 event pairs, 0 based on Foata normal form. 0/196 useless extension candidates. Maximal degree in co-relation 177. Up to 8 conditions per place. [2022-12-14 09:04:36,046 INFO L119 LiptonReduction]: Number of co-enabled transitions 17766 [2022-12-14 09:04:38,654 INFO L134 LiptonReduction]: Checked pairs total: 57507 [2022-12-14 09:04:38,654 INFO L136 LiptonReduction]: Total number of compositions: 158 [2022-12-14 09:04:38,655 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 74 places, 74 transitions, 169 flow [2022-12-14 09:04:39,712 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 52605 states, 51866 states have (on average 4.046176686075657) internal successors, (209859), 52604 states have internal predecessors, (209859), 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) [2022-12-14 09:04:39,713 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:04:39,713 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=FINITE_AUTOMATA, 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;@7ad406ee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:04:39,714 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-12-14 09:04:39,784 INFO L276 IsEmpty]: Start isEmpty. Operand has 52605 states, 51866 states have (on average 4.046176686075657) internal successors, (209859), 52604 states have internal predecessors, (209859), 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) [2022-12-14 09:04:39,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 09:04:39,784 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:39,784 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 09:04:39,785 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-12-14 09:04:39,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:39,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1129922946, now seen corresponding path program 1 times [2022-12-14 09:04:39,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:04:39,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986764533] [2022-12-14 09:04:39,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:39,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:04:39,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:04:39,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:04:39,815 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:04:39,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986764533] [2022-12-14 09:04:39,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986764533] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:04:39,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:04:39,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 09:04:39,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815974431] [2022-12-14 09:04:39,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:04:39,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:04:39,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:04:39,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:04:39,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:39,882 INFO L87 Difference]: Start difference. First operand has 52605 states, 51866 states have (on average 4.046176686075657) internal successors, (209859), 52604 states have internal predecessors, (209859), 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) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-12-14 09:04:40,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:04:40,608 INFO L93 Difference]: Finished difference Result 65158 states and 252657 transitions. [2022-12-14 09:04:40,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:04:40,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) Word has length 5 [2022-12-14 09:04:40,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:04:41,039 INFO L225 Difference]: With dead ends: 65158 [2022-12-14 09:04:41,040 INFO L226 Difference]: Without dead ends: 65158 [2022-12-14 09:04:41,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:41,041 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 59 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:04:41,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 15 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:04:41,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65158 states. [2022-12-14 09:04:42,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65158 to 55543. [2022-12-14 09:04:42,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55543 states, 55256 states have (on average 3.9775770957000143) internal successors, (219785), 55542 states have internal predecessors, (219785), 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) [2022-12-14 09:04:42,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55543 states to 55543 states and 219785 transitions. [2022-12-14 09:04:42,892 INFO L78 Accepts]: Start accepts. Automaton has 55543 states and 219785 transitions. Word has length 5 [2022-12-14 09:04:42,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:04:42,892 INFO L495 AbstractCegarLoop]: Abstraction has 55543 states and 219785 transitions. [2022-12-14 09:04:42,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-12-14 09:04:42,892 INFO L276 IsEmpty]: Start isEmpty. Operand 55543 states and 219785 transitions. [2022-12-14 09:04:42,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 09:04:42,892 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:42,893 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 09:04:42,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 09:04:42,893 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-12-14 09:04:42,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:42,893 INFO L85 PathProgramCache]: Analyzing trace with hash 667873853, now seen corresponding path program 1 times [2022-12-14 09:04:42,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:04:42,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843414302] [2022-12-14 09:04:42,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:42,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:04:42,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:04:42,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:04:42,919 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:04:42,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843414302] [2022-12-14 09:04:42,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843414302] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:04:42,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:04:42,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 09:04:42,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850202080] [2022-12-14 09:04:42,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:04:42,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:04:42,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:04:42,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:04:42,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:42,921 INFO L87 Difference]: Start difference. First operand 55543 states and 219785 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-12-14 09:04:43,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:04:43,474 INFO L93 Difference]: Finished difference Result 55700 states and 216049 transitions. [2022-12-14 09:04:43,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:04:43,475 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) Word has length 6 [2022-12-14 09:04:43,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:04:43,711 INFO L225 Difference]: With dead ends: 55700 [2022-12-14 09:04:43,711 INFO L226 Difference]: Without dead ends: 55700 [2022-12-14 09:04:43,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:43,712 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 52 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:04:43,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 21 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:04:43,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55700 states. [2022-12-14 09:04:45,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55700 to 50080. [2022-12-14 09:04:45,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50080 states, 49873 states have (on average 3.9360575862691234) internal successors, (196303), 50079 states have internal predecessors, (196303), 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) [2022-12-14 09:04:45,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50080 states to 50080 states and 196303 transitions. [2022-12-14 09:04:45,311 INFO L78 Accepts]: Start accepts. Automaton has 50080 states and 196303 transitions. Word has length 6 [2022-12-14 09:04:45,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:04:45,312 INFO L495 AbstractCegarLoop]: Abstraction has 50080 states and 196303 transitions. [2022-12-14 09:04:45,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-12-14 09:04:45,312 INFO L276 IsEmpty]: Start isEmpty. Operand 50080 states and 196303 transitions. [2022-12-14 09:04:45,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 09:04:45,313 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:45,313 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:04:45,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 09:04:45,313 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thrErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-12-14 09:04:45,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:45,313 INFO L85 PathProgramCache]: Analyzing trace with hash 680158079, now seen corresponding path program 1 times [2022-12-14 09:04:45,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:04:45,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347353501] [2022-12-14 09:04:45,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:45,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:04:45,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:04:45,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:04:45,356 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:04:45,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347353501] [2022-12-14 09:04:45,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347353501] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:04:45,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:04:45,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:04:45,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754022516] [2022-12-14 09:04:45,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:04:45,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:04:45,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:04:45,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:04:45,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:45,358 INFO L87 Difference]: Start difference. First operand 50080 states and 196303 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-12-14 09:04:45,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:04:45,738 INFO L93 Difference]: Finished difference Result 48974 states and 189569 transitions. [2022-12-14 09:04:45,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:04:45,738 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) Word has length 12 [2022-12-14 09:04:45,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:04:46,181 INFO L225 Difference]: With dead ends: 48974 [2022-12-14 09:04:46,181 INFO L226 Difference]: Without dead ends: 48974 [2022-12-14 09:04:46,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:46,182 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 52 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:04:46,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 83 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:04:46,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48974 states. [2022-12-14 09:04:47,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48974 to 47771. [2022-12-14 09:04:47,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47771 states, 47564 states have (on average 3.913737280296022) internal successors, (186153), 47770 states have internal predecessors, (186153), 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) [2022-12-14 09:04:47,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47771 states to 47771 states and 186153 transitions. [2022-12-14 09:04:47,442 INFO L78 Accepts]: Start accepts. Automaton has 47771 states and 186153 transitions. Word has length 12 [2022-12-14 09:04:47,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:04:47,442 INFO L495 AbstractCegarLoop]: Abstraction has 47771 states and 186153 transitions. [2022-12-14 09:04:47,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-12-14 09:04:47,442 INFO L276 IsEmpty]: Start isEmpty. Operand 47771 states and 186153 transitions. [2022-12-14 09:04:47,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 09:04:47,444 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:47,444 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:04:47,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 09:04:47,445 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thrErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-12-14 09:04:47,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:47,445 INFO L85 PathProgramCache]: Analyzing trace with hash -438290103, now seen corresponding path program 1 times [2022-12-14 09:04:47,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:04:47,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504972463] [2022-12-14 09:04:47,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:47,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:04:47,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:04:47,493 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:04:47,493 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:04:47,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504972463] [2022-12-14 09:04:47,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504972463] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:04:47,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:04:47,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:04:47,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124393909] [2022-12-14 09:04:47,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:04:47,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:04:47,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:04:47,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:04:47,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:47,495 INFO L87 Difference]: Start difference. First operand 47771 states and 186153 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2022-12-14 09:04:48,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:04:48,069 INFO L93 Difference]: Finished difference Result 48830 states and 187879 transitions. [2022-12-14 09:04:48,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:04:48,070 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) Word has length 15 [2022-12-14 09:04:48,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:04:48,267 INFO L225 Difference]: With dead ends: 48830 [2022-12-14 09:04:48,267 INFO L226 Difference]: Without dead ends: 48830 [2022-12-14 09:04:48,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:48,268 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 52 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:04:48,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 83 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:04:48,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48830 states. [2022-12-14 09:04:49,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48830 to 47433. [2022-12-14 09:04:49,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47433 states, 47226 states have (on average 3.8944225638419514) internal successors, (183918), 47432 states have internal predecessors, (183918), 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) [2022-12-14 09:04:49,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47433 states to 47433 states and 183918 transitions. [2022-12-14 09:04:49,455 INFO L78 Accepts]: Start accepts. Automaton has 47433 states and 183918 transitions. Word has length 15 [2022-12-14 09:04:49,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:04:49,456 INFO L495 AbstractCegarLoop]: Abstraction has 47433 states and 183918 transitions. [2022-12-14 09:04:49,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2022-12-14 09:04:49,456 INFO L276 IsEmpty]: Start isEmpty. Operand 47433 states and 183918 transitions. [2022-12-14 09:04:49,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 09:04:49,457 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:49,457 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2022-12-14 09:04:49,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 09:04:49,457 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-12-14 09:04:49,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:49,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1863819253, now seen corresponding path program 1 times [2022-12-14 09:04:49,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:04:49,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819624325] [2022-12-14 09:04:49,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:49,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:04:49,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:04:49,468 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 09:04:49,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:04:49,478 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 09:04:49,478 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 09:04:49,478 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining) [2022-12-14 09:04:49,478 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 25 remaining) [2022-12-14 09:04:49,479 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 25 remaining) [2022-12-14 09:04:49,479 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 25 remaining) [2022-12-14 09:04:49,479 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 25 remaining) [2022-12-14 09:04:49,479 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 25 remaining) [2022-12-14 09:04:49,479 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 25 remaining) [2022-12-14 09:04:49,479 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 25 remaining) [2022-12-14 09:04:49,479 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 25 remaining) [2022-12-14 09:04:49,479 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 25 remaining) [2022-12-14 09:04:49,479 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 25 remaining) [2022-12-14 09:04:49,479 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 25 remaining) [2022-12-14 09:04:49,479 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 25 remaining) [2022-12-14 09:04:49,479 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 25 remaining) [2022-12-14 09:04:49,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 25 remaining) [2022-12-14 09:04:49,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 25 remaining) [2022-12-14 09:04:49,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 25 remaining) [2022-12-14 09:04:49,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 25 remaining) [2022-12-14 09:04:49,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 25 remaining) [2022-12-14 09:04:49,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 25 remaining) [2022-12-14 09:04:49,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 25 remaining) [2022-12-14 09:04:49,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 25 remaining) [2022-12-14 09:04:49,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 25 remaining) [2022-12-14 09:04:49,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 25 remaining) [2022-12-14 09:04:49,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 25 remaining) [2022-12-14 09:04:49,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 09:04:49,481 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-14 09:04:49,481 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-14 09:04:49,481 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-12-14 09:04:49,502 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 09:04:49,505 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 09:04:49,505 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 234 places, 243 transitions, 518 flow [2022-12-14 09:04:49,506 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 234 places, 243 transitions, 518 flow [2022-12-14 09:04:49,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 234 places, 243 transitions, 518 flow [2022-12-14 09:04:49,549 INFO L130 PetriNetUnfolder]: 22/297 cut-off events. [2022-12-14 09:04:49,549 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-12-14 09:04:49,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 320 conditions, 297 events. 22/297 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 915 event pairs, 0 based on Foata normal form. 0/246 useless extension candidates. Maximal degree in co-relation 243. Up to 10 conditions per place. [2022-12-14 09:04:49,560 INFO L119 LiptonReduction]: Number of co-enabled transitions 32712 [2022-12-14 09:04:52,299 INFO L134 LiptonReduction]: Checked pairs total: 111437 [2022-12-14 09:04:52,299 INFO L136 LiptonReduction]: Total number of compositions: 190 [2022-12-14 09:04:52,300 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 96 places, 96 transitions, 224 flow [2022-12-14 09:05:18,370 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1052099 states, 1046902 states have (on average 5.064269626001288) internal successors, (5301794), 1052098 states have internal predecessors, (5301794), 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) [2022-12-14 09:05:18,371 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:05:18,371 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=FINITE_AUTOMATA, 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;@7ad406ee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:05:18,371 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2022-12-14 09:05:19,778 INFO L276 IsEmpty]: Start isEmpty. Operand has 1052099 states, 1046902 states have (on average 5.064269626001288) internal successors, (5301794), 1052098 states have internal predecessors, (5301794), 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) [2022-12-14 09:05:19,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 09:05:19,779 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:05:19,779 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 09:05:19,779 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2022-12-14 09:05:19,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:05:19,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1588643643, now seen corresponding path program 1 times [2022-12-14 09:05:19,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:05:19,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120274691] [2022-12-14 09:05:19,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:05:19,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:05:19,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:05:19,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:05:19,804 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:05:19,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120274691] [2022-12-14 09:05:19,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120274691] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:05:19,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:05:19,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 09:05:19,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86776] [2022-12-14 09:05:19,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:05:19,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:05:19,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:05:19,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:05:19,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:05:21,244 INFO L87 Difference]: Start difference. First operand has 1052099 states, 1046902 states have (on average 5.064269626001288) internal successors, (5301794), 1052098 states have internal predecessors, (5301794), 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) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-12-14 09:05:37,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:05:37,416 INFO L93 Difference]: Finished difference Result 1089618 states and 5406755 transitions. [2022-12-14 09:05:37,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:05:37,417 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) Word has length 5 [2022-12-14 09:05:37,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:05:48,354 INFO L225 Difference]: With dead ends: 1089618 [2022-12-14 09:05:48,354 INFO L226 Difference]: Without dead ends: 1089618 [2022-12-14 09:05:48,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:05:48,355 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 70 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:05:48,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 28 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:05:51,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089618 states.