./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248f6eb-325a-4a3f-a7a4-f2ff2d778cc0/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248f6eb-325a-4a3f-a7a4-f2ff2d778cc0/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248f6eb-325a-4a3f-a7a4-f2ff2d778cc0/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248f6eb-325a-4a3f-a7a4-f2ff2d778cc0/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248f6eb-325a-4a3f-a7a4-f2ff2d778cc0/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248f6eb-325a-4a3f-a7a4-f2ff2d778cc0/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e2cb2ea6991951b6a9c5c1df0de2ac5ff84f75971959d591fa5f258025f94929 --- 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-38b53e6 [2022-11-25 15:30:07,383 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:30:07,385 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:30:07,408 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:30:07,409 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:30:07,410 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:30:07,411 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:30:07,413 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:30:07,415 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:30:07,416 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:30:07,417 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:30:07,418 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:30:07,419 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:30:07,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:30:07,421 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:30:07,422 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:30:07,423 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:30:07,423 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:30:07,425 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:30:07,427 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:30:07,429 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:30:07,433 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:30:07,434 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:30:07,435 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:30:07,438 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:30:07,439 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:30:07,439 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:30:07,440 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:30:07,441 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:30:07,442 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:30:07,442 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:30:07,443 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:30:07,444 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:30:07,445 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:30:07,446 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:30:07,446 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:30:07,456 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:30:07,456 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:30:07,457 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:30:07,458 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:30:07,459 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:30:07,460 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248f6eb-325a-4a3f-a7a4-f2ff2d778cc0/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 15:30:07,488 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:30:07,488 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:30:07,489 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:30:07,489 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:30:07,490 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:30:07,490 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:30:07,491 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:30:07,491 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:30:07,491 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:30:07,492 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:30:07,492 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 15:30:07,492 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 15:30:07,492 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:30:07,493 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 15:30:07,493 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:30:07,493 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 15:30:07,493 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:30:07,494 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 15:30:07,494 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 15:30:07,494 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 15:30:07,495 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:30:07,495 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:30:07,495 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 15:30:07,495 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:30:07,496 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:30:07,496 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:30:07,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:30:07,497 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:30:07,497 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:30:07,497 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 15:30:07,497 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:30:07,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 15:30:07,498 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:30:07,498 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 15:30:07,498 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:30:07,499 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:30:07,499 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_7248f6eb-325a-4a3f-a7a4-f2ff2d778cc0/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248f6eb-325a-4a3f-a7a4-f2ff2d778cc0/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2cb2ea6991951b6a9c5c1df0de2ac5ff84f75971959d591fa5f258025f94929 [2022-11-25 15:30:07,778 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:30:07,820 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:30:07,823 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:30:07,824 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:30:07,825 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:30:07,826 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248f6eb-325a-4a3f-a7a4-f2ff2d778cc0/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c [2022-11-25 15:30:11,180 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:30:11,459 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:30:11,461 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248f6eb-325a-4a3f-a7a4-f2ff2d778cc0/sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c [2022-11-25 15:30:11,469 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248f6eb-325a-4a3f-a7a4-f2ff2d778cc0/bin/uautomizer-ZsLfNo2U6R/data/e474be1f8/c5d295aa82a441b9b7450d25bae9b2ac/FLAG1e1f46e97 [2022-11-25 15:30:11,491 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248f6eb-325a-4a3f-a7a4-f2ff2d778cc0/bin/uautomizer-ZsLfNo2U6R/data/e474be1f8/c5d295aa82a441b9b7450d25bae9b2ac [2022-11-25 15:30:11,494 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:30:11,496 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:30:11,501 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:30:11,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:30:11,507 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:30:11,510 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:30:11" (1/1) ... [2022-11-25 15:30:11,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d289382 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:30:11, skipping insertion in model container [2022-11-25 15:30:11,512 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:30:11" (1/1) ... [2022-11-25 15:30:11,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:30:11,544 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:30:11,742 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:30:11,746 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:30:11,749 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:30:11,752 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:30:11,753 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:30:11,756 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:30:11,768 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_7248f6eb-325a-4a3f-a7a4-f2ff2d778cc0/sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c[3544,3557] [2022-11-25 15:30:11,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:30:11,786 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:30:11,801 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:30:11,804 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:30:11,804 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:30:11,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:30:11,808 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:30:11,810 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:30:11,819 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_7248f6eb-325a-4a3f-a7a4-f2ff2d778cc0/sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c[3544,3557] [2022-11-25 15:30:11,823 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:30:11,841 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:30:11,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:30:11 WrapperNode [2022-11-25 15:30:11,841 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:30:11,843 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:30:11,843 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:30:11,844 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:30:11,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:30:11" (1/1) ... [2022-11-25 15:30:11,867 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:30:11" (1/1) ... [2022-11-25 15:30:11,918 INFO L138 Inliner]: procedures = 23, calls = 46, calls flagged for inlining = 18, calls inlined = 40, statements flattened = 521 [2022-11-25 15:30:11,919 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:30:11,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:30:11,920 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:30:11,920 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:30:11,934 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:30:11" (1/1) ... [2022-11-25 15:30:11,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:30:11" (1/1) ... [2022-11-25 15:30:11,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:30:11" (1/1) ... [2022-11-25 15:30:11,940 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:30:11" (1/1) ... [2022-11-25 15:30:11,952 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:30:11" (1/1) ... [2022-11-25 15:30:11,957 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:30:11" (1/1) ... [2022-11-25 15:30:11,960 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:30:11" (1/1) ... [2022-11-25 15:30:11,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:30:11" (1/1) ... [2022-11-25 15:30:11,968 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:30:11,969 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:30:11,970 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:30:11,970 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:30:11,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:30:11" (1/1) ... [2022-11-25 15:30:11,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:30:12,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248f6eb-325a-4a3f-a7a4-f2ff2d778cc0/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:30:12,023 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248f6eb-325a-4a3f-a7a4-f2ff2d778cc0/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:30:12,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248f6eb-325a-4a3f-a7a4-f2ff2d778cc0/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:30:12,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 15:30:12,066 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-25 15:30:12,066 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-25 15:30:12,066 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-25 15:30:12,066 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-25 15:30:12,067 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-25 15:30:12,067 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-25 15:30:12,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 15:30:12,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 15:30:12,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 15:30:12,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 15:30:12,068 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 15:30:12,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:30:12,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:30:12,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 15:30:12,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 15:30:12,070 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 15:30:12,232 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:30:12,235 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:30:13,511 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:30:18,726 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:30:18,727 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 15:30:18,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:30:18 BoogieIcfgContainer [2022-11-25 15:30:18,729 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:30:18,732 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:30:18,732 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:30:18,735 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:30:18,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:30:11" (1/3) ... [2022-11-25 15:30:18,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ac59f15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:30:18, skipping insertion in model container [2022-11-25 15:30:18,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:30:11" (2/3) ... [2022-11-25 15:30:18,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ac59f15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:30:18, skipping insertion in model container [2022-11-25 15:30:18,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:30:18" (3/3) ... [2022-11-25 15:30:18,738 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-collitem-subst.wvr.c [2022-11-25 15:30:18,748 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 15:30:18,758 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:30:18,759 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 72 error locations. [2022-11-25 15:30:18,759 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 15:30:20,315 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-25 15:30:20,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 212 places, 204 transitions, 432 flow [2022-11-25 15:30:20,748 INFO L130 PetriNetUnfolder]: 2/201 cut-off events. [2022-11-25 15:30:20,748 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-25 15:30:20,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 201 events. 2/201 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 496 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 90. Up to 2 conditions per place. [2022-11-25 15:30:20,754 INFO L82 GeneralOperation]: Start removeDead. Operand has 212 places, 204 transitions, 432 flow [2022-11-25 15:30:20,765 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 182 places, 172 transitions, 359 flow [2022-11-25 15:30:20,771 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 15:30:20,786 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 182 places, 172 transitions, 359 flow [2022-11-25 15:30:20,789 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 182 places, 172 transitions, 359 flow [2022-11-25 15:30:20,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 182 places, 172 transitions, 359 flow [2022-11-25 15:30:21,119 INFO L130 PetriNetUnfolder]: 0/172 cut-off events. [2022-11-25 15:30:21,119 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-25 15:30:21,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 184 conditions, 172 events. 0/172 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 512 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-11-25 15:30:21,124 INFO L119 LiptonReduction]: Number of co-enabled transitions 6318 [2022-11-25 15:30:30,387 WARN L233 SmtUtils]: Spent 5.78s on a formula simplification. DAG size of input: 648 DAG size of output: 371 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 15:30:55,977 WARN L233 SmtUtils]: Spent 12.40s on a formula simplification. DAG size of input: 1323 DAG size of output: 683 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 15:31:18,438 WARN L233 SmtUtils]: Spent 19.56s on a formula simplification. DAG size of input: 1524 DAG size of output: 807 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 15:31:32,383 INFO L134 LiptonReduction]: Checked pairs total: 3309 [2022-11-25 15:31:32,383 INFO L136 LiptonReduction]: Total number of compositions: 86 [2022-11-25 15:31:32,402 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:31:32,408 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@618f4020, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:31:32,409 INFO L358 AbstractCegarLoop]: Starting to check reachability of 147 error locations. [2022-11-25 15:31:32,413 INFO L130 PetriNetUnfolder]: 0/2 cut-off events. [2022-11-25 15:31:32,413 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 15:31:32,413 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:31:32,414 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 15:31:32,415 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-11-25 15:31:32,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:31:32,422 INFO L85 PathProgramCache]: Analyzing trace with hash 2603568, now seen corresponding path program 1 times [2022-11-25 15:31:32,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:31:32,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47821743] [2022-11-25 15:31:32,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:31:32,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:31:32,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:31:32,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:31:32,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:31:32,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47821743] [2022-11-25 15:31:32,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47821743] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:31:32,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:31:32,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 15:31:32,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764749924] [2022-11-25 15:31:32,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:31:32,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 15:31:32,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:31:32,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 15:31:32,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 15:31:32,817 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 290 [2022-11-25 15:31:32,820 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 86 transitions, 187 flow. Second operand has 2 states, 2 states have (on average 121.5) internal successors, (243), 2 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:31:32,820 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:31:32,821 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 290 [2022-11-25 15:31:32,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:32:26,039 INFO L130 PetriNetUnfolder]: 29733/42766 cut-off events. [2022-11-25 15:32:26,040 INFO L131 PetriNetUnfolder]: For 1277/1277 co-relation queries the response was YES. [2022-11-25 15:32:26,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86565 conditions, 42766 events. 29733/42766 cut-off events. For 1277/1277 co-relation queries the response was YES. Maximal size of possible extension queue 5832. Compared 313862 event pairs, 29733 based on Foata normal form. 0/9294 useless extension candidates. Maximal degree in co-relation 82328. Up to 42767 conditions per place. [2022-11-25 15:32:26,297 INFO L137 encePairwiseOnDemand]: 266/290 looper letters, 62 selfloop transitions, 0 changer transitions 0/62 dead transitions. [2022-11-25 15:32:26,298 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 62 transitions, 263 flow [2022-11-25 15:32:26,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 15:32:26,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 15:32:26,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 326 transitions. [2022-11-25 15:32:26,321 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5620689655172414 [2022-11-25 15:32:26,322 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 326 transitions. [2022-11-25 15:32:26,323 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 326 transitions. [2022-11-25 15:32:26,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:32:26,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 326 transitions. [2022-11-25 15:32:26,337 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 163.0) internal successors, (326), 2 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:32:26,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 290.0) internal successors, (870), 3 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:32:26,344 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 290.0) internal successors, (870), 3 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:32:26,346 INFO L175 Difference]: Start difference. First operand has 96 places, 86 transitions, 187 flow. Second operand 2 states and 326 transitions. [2022-11-25 15:32:26,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 62 transitions, 263 flow [2022-11-25 15:32:26,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 62 transitions, 254 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-25 15:32:26,407 INFO L231 Difference]: Finished difference. Result has 68 places, 62 transitions, 130 flow [2022-11-25 15:32:26,410 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=130, PETRI_PLACES=68, PETRI_TRANSITIONS=62} [2022-11-25 15:32:26,422 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -28 predicate places. [2022-11-25 15:32:26,422 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 62 transitions, 130 flow [2022-11-25 15:32:26,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 121.5) internal successors, (243), 2 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:32:26,423 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:32:26,424 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 15:32:26,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 15:32:26,424 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-11-25 15:32:26,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:32:26,430 INFO L85 PathProgramCache]: Analyzing trace with hash 2603569, now seen corresponding path program 1 times [2022-11-25 15:32:26,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:32:26,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590718849] [2022-11-25 15:32:26,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:32:26,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:32:26,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:32:26,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:32:26,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:32:26,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590718849] [2022-11-25 15:32:26,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590718849] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:32:26,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:32:26,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 15:32:26,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026969155] [2022-11-25 15:32:26,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:32:26,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:32:26,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:32:26,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:32:26,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:32:26,628 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-11-25 15:32:26,631 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 62 transitions, 130 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:32:26,631 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:32:26,632 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-11-25 15:32:26,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:33:13,075 INFO L130 PetriNetUnfolder]: 26581/38278 cut-off events. [2022-11-25 15:33:13,076 INFO L131 PetriNetUnfolder]: For 288/288 co-relation queries the response was YES. [2022-11-25 15:33:13,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77189 conditions, 38278 events. 26581/38278 cut-off events. For 288/288 co-relation queries the response was YES. Maximal size of possible extension queue 5202. Compared 277168 event pairs, 26581 based on Foata normal form. 0/8442 useless extension candidates. Maximal degree in co-relation 77186. Up to 38278 conditions per place. [2022-11-25 15:33:13,291 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 59 selfloop transitions, 1 changer transitions 0/60 dead transitions. [2022-11-25 15:33:13,291 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 60 transitions, 246 flow [2022-11-25 15:33:13,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:33:13,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 15:33:13,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 416 transitions. [2022-11-25 15:33:13,295 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4781609195402299 [2022-11-25 15:33:13,296 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 416 transitions. [2022-11-25 15:33:13,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 416 transitions. [2022-11-25 15:33:13,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:33:13,296 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 416 transitions. [2022-11-25 15:33:13,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:33:13,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:33:13,304 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:33:13,305 INFO L175 Difference]: Start difference. First operand has 68 places, 62 transitions, 130 flow. Second operand 3 states and 416 transitions. [2022-11-25 15:33:13,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 60 transitions, 246 flow [2022-11-25 15:33:13,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 60 transitions, 246 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 15:33:13,308 INFO L231 Difference]: Finished difference. Result has 68 places, 60 transitions, 128 flow [2022-11-25 15:33:13,309 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=68, PETRI_TRANSITIONS=60} [2022-11-25 15:33:13,310 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -28 predicate places. [2022-11-25 15:33:13,310 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 60 transitions, 128 flow [2022-11-25 15:33:13,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:33:13,311 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:33:13,311 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 15:33:13,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 15:33:13,312 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-11-25 15:33:13,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:33:13,316 INFO L85 PathProgramCache]: Analyzing trace with hash 2603570, now seen corresponding path program 1 times [2022-11-25 15:33:13,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:33:13,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031026116] [2022-11-25 15:33:13,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:33:13,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:33:13,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:33:13,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:33:13,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:33:13,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031026116] [2022-11-25 15:33:13,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031026116] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:33:13,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:33:13,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 15:33:13,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120723336] [2022-11-25 15:33:13,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:33:13,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:33:13,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:33:13,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:33:13,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:33:13,546 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-11-25 15:33:13,547 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 60 transitions, 128 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:33:13,547 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:33:13,547 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-11-25 15:33:13,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:33:53,631 INFO L130 PetriNetUnfolder]: 23605/34038 cut-off events. [2022-11-25 15:33:53,632 INFO L131 PetriNetUnfolder]: For 270/270 co-relation queries the response was YES. [2022-11-25 15:33:53,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68674 conditions, 34038 events. 23605/34038 cut-off events. For 270/270 co-relation queries the response was YES. Maximal size of possible extension queue 4608. Compared 242568 event pairs, 23605 based on Foata normal form. 0/7630 useless extension candidates. Maximal degree in co-relation 68670. Up to 34038 conditions per place. [2022-11-25 15:33:53,781 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 57 selfloop transitions, 1 changer transitions 0/58 dead transitions. [2022-11-25 15:33:53,781 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 58 transitions, 240 flow [2022-11-25 15:33:53,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:33:53,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 15:33:53,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 414 transitions. [2022-11-25 15:33:53,783 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47586206896551725 [2022-11-25 15:33:53,784 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 414 transitions. [2022-11-25 15:33:53,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 414 transitions. [2022-11-25 15:33:53,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:33:53,784 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 414 transitions. [2022-11-25 15:33:53,786 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:33:53,788 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:33:53,789 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:33:53,789 INFO L175 Difference]: Start difference. First operand has 68 places, 60 transitions, 128 flow. Second operand 3 states and 414 transitions. [2022-11-25 15:33:53,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 58 transitions, 240 flow [2022-11-25 15:33:53,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 58 transitions, 239 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 15:33:53,791 INFO L231 Difference]: Finished difference. Result has 67 places, 58 transitions, 125 flow [2022-11-25 15:33:53,791 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=123, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=125, PETRI_PLACES=67, PETRI_TRANSITIONS=58} [2022-11-25 15:33:53,792 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -29 predicate places. [2022-11-25 15:33:53,792 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 58 transitions, 125 flow [2022-11-25 15:33:53,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:33:53,793 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:33:53,793 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 15:33:53,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 15:33:53,793 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-11-25 15:33:53,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:33:53,794 INFO L85 PathProgramCache]: Analyzing trace with hash 2603572, now seen corresponding path program 1 times [2022-11-25 15:33:53,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:33:53,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985324951] [2022-11-25 15:33:53,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:33:53,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:33:53,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:33:54,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:33:54,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:33:54,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985324951] [2022-11-25 15:33:54,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985324951] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:33:54,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:33:54,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 15:33:54,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206367738] [2022-11-25 15:33:54,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:33:54,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:33:54,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:33:54,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:33:54,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:33:54,021 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-11-25 15:33:54,022 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 58 transitions, 125 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:33:54,022 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:33:54,022 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-11-25 15:33:54,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:34:27,486 INFO L130 PetriNetUnfolder]: 20903/30180 cut-off events. [2022-11-25 15:34:27,486 INFO L131 PetriNetUnfolder]: For 255/255 co-relation queries the response was YES. [2022-11-25 15:34:27,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60892 conditions, 30180 events. 20903/30180 cut-off events. For 255/255 co-relation queries the response was YES. Maximal size of possible extension queue 4081. Compared 212537 event pairs, 20903 based on Foata normal form. 0/6866 useless extension candidates. Maximal degree in co-relation 60888. Up to 30180 conditions per place. [2022-11-25 15:34:27,591 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 55 selfloop transitions, 1 changer transitions 0/56 dead transitions. [2022-11-25 15:34:27,591 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 56 transitions, 233 flow [2022-11-25 15:34:27,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:34:27,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 15:34:27,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 412 transitions. [2022-11-25 15:34:27,593 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4735632183908046 [2022-11-25 15:34:27,593 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 412 transitions. [2022-11-25 15:34:27,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 412 transitions. [2022-11-25 15:34:27,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:34:27,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 412 transitions. [2022-11-25 15:34:27,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:34:27,597 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:34:27,598 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:34:27,598 INFO L175 Difference]: Start difference. First operand has 67 places, 58 transitions, 125 flow. Second operand 3 states and 412 transitions. [2022-11-25 15:34:27,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 56 transitions, 233 flow [2022-11-25 15:34:27,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 56 transitions, 232 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 15:34:27,601 INFO L231 Difference]: Finished difference. Result has 66 places, 56 transitions, 122 flow [2022-11-25 15:34:27,601 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=122, PETRI_PLACES=66, PETRI_TRANSITIONS=56} [2022-11-25 15:34:27,602 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -30 predicate places. [2022-11-25 15:34:27,602 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 56 transitions, 122 flow [2022-11-25 15:34:27,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:34:27,603 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:34:27,603 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 15:34:27,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 15:34:27,603 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-11-25 15:34:27,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:34:27,604 INFO L85 PathProgramCache]: Analyzing trace with hash 2603573, now seen corresponding path program 1 times [2022-11-25 15:34:27,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:34:27,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309546893] [2022-11-25 15:34:27,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:34:27,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:34:27,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:27,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:34:27,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:34:27,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309546893] [2022-11-25 15:34:27,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309546893] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:34:27,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:34:27,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 15:34:27,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915261230] [2022-11-25 15:34:27,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:34:27,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:34:27,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:34:27,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:34:27,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:34:27,758 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-11-25 15:34:27,759 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 56 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:34:27,759 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:34:27,759 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-11-25 15:34:27,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:34:58,058 INFO L130 PetriNetUnfolder]: 18365/26554 cut-off events. [2022-11-25 15:34:58,059 INFO L131 PetriNetUnfolder]: For 240/240 co-relation queries the response was YES. [2022-11-25 15:34:58,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53578 conditions, 26554 events. 18365/26554 cut-off events. For 240/240 co-relation queries the response was YES. Maximal size of possible extension queue 3586. Compared 184707 event pairs, 18365 based on Foata normal form. 0/6142 useless extension candidates. Maximal degree in co-relation 53574. Up to 26554 conditions per place. [2022-11-25 15:34:58,151 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 53 selfloop transitions, 1 changer transitions 0/54 dead transitions. [2022-11-25 15:34:58,151 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 54 transitions, 226 flow [2022-11-25 15:34:58,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:34:58,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 15:34:58,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 410 transitions. [2022-11-25 15:34:58,153 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47126436781609193 [2022-11-25 15:34:58,153 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 410 transitions. [2022-11-25 15:34:58,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 410 transitions. [2022-11-25 15:34:58,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:34:58,154 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 410 transitions. [2022-11-25 15:34:58,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:34:58,157 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:34:58,158 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:34:58,158 INFO L175 Difference]: Start difference. First operand has 66 places, 56 transitions, 122 flow. Second operand 3 states and 410 transitions. [2022-11-25 15:34:58,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 54 transitions, 226 flow [2022-11-25 15:34:58,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 54 transitions, 225 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 15:34:58,160 INFO L231 Difference]: Finished difference. Result has 65 places, 54 transitions, 119 flow [2022-11-25 15:34:58,160 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=119, PETRI_PLACES=65, PETRI_TRANSITIONS=54} [2022-11-25 15:34:58,161 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -31 predicate places. [2022-11-25 15:34:58,161 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 54 transitions, 119 flow [2022-11-25 15:34:58,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:34:58,161 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:34:58,162 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 15:34:58,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 15:34:58,162 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-11-25 15:34:58,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:34:58,162 INFO L85 PathProgramCache]: Analyzing trace with hash 2603575, now seen corresponding path program 1 times [2022-11-25 15:34:58,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:34:58,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334804263] [2022-11-25 15:34:58,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:34:58,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:34:58,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:58,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:34:58,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:34:58,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334804263] [2022-11-25 15:34:58,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334804263] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:34:58,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:34:58,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 15:34:58,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152651305] [2022-11-25 15:34:58,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:34:58,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:34:58,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:34:58,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:34:58,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:34:58,236 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-11-25 15:34:58,237 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 54 transitions, 119 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:34:58,237 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:34:58,237 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-11-25 15:34:58,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:35:28,534 INFO L130 PetriNetUnfolder]: 16039/23232 cut-off events. [2022-11-25 15:35:28,534 INFO L131 PetriNetUnfolder]: For 224/224 co-relation queries the response was YES. [2022-11-25 15:35:28,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46902 conditions, 23232 events. 16039/23232 cut-off events. For 224/224 co-relation queries the response was YES. Maximal size of possible extension queue 3122. Compared 159089 event pairs, 16039 based on Foata normal form. 0/5484 useless extension candidates. Maximal degree in co-relation 46898. Up to 23232 conditions per place. [2022-11-25 15:35:28,608 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 51 selfloop transitions, 1 changer transitions 0/52 dead transitions. [2022-11-25 15:35:28,608 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 52 transitions, 219 flow [2022-11-25 15:35:28,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:35:28,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 15:35:28,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 408 transitions. [2022-11-25 15:35:28,610 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4689655172413793 [2022-11-25 15:35:28,611 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 408 transitions. [2022-11-25 15:35:28,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 408 transitions. [2022-11-25 15:35:28,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:35:28,621 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 408 transitions. [2022-11-25 15:35:28,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:35:28,627 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:35:28,628 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:35:28,629 INFO L175 Difference]: Start difference. First operand has 65 places, 54 transitions, 119 flow. Second operand 3 states and 408 transitions. [2022-11-25 15:35:28,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 52 transitions, 219 flow [2022-11-25 15:35:28,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 52 transitions, 218 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 15:35:28,630 INFO L231 Difference]: Finished difference. Result has 64 places, 52 transitions, 116 flow [2022-11-25 15:35:28,631 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=64, PETRI_TRANSITIONS=52} [2022-11-25 15:35:28,631 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -32 predicate places. [2022-11-25 15:35:28,632 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 52 transitions, 116 flow [2022-11-25 15:35:28,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:35:28,632 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:35:28,633 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 15:35:28,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 15:35:28,633 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-11-25 15:35:28,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:35:28,634 INFO L85 PathProgramCache]: Analyzing trace with hash 2603576, now seen corresponding path program 1 times [2022-11-25 15:35:28,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:35:28,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344006370] [2022-11-25 15:35:28,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:35:28,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:35:28,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:28,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:35:28,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:35:28,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344006370] [2022-11-25 15:35:28,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344006370] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:35:28,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:35:28,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 15:35:28,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423565017] [2022-11-25 15:35:28,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:35:28,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:35:28,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:35:28,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:35:28,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:35:28,724 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-11-25 15:35:28,724 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 52 transitions, 116 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:35:28,725 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:35:28,725 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-11-25 15:35:28,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:35:55,810 INFO L130 PetriNetUnfolder]: 13869/20130 cut-off events. [2022-11-25 15:35:55,810 INFO L131 PetriNetUnfolder]: For 208/208 co-relation queries the response was YES. [2022-11-25 15:35:55,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40666 conditions, 20130 events. 13869/20130 cut-off events. For 208/208 co-relation queries the response was YES. Maximal size of possible extension queue 2690. Compared 135689 event pairs, 13869 based on Foata normal form. 0/4862 useless extension candidates. Maximal degree in co-relation 40662. Up to 20130 conditions per place. [2022-11-25 15:35:55,879 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 49 selfloop transitions, 1 changer transitions 0/50 dead transitions. [2022-11-25 15:35:55,880 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 50 transitions, 212 flow [2022-11-25 15:35:55,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:35:55,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 15:35:55,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 406 transitions. [2022-11-25 15:35:55,882 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667 [2022-11-25 15:35:55,882 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 406 transitions. [2022-11-25 15:35:55,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 406 transitions. [2022-11-25 15:35:55,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:35:55,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 406 transitions. [2022-11-25 15:35:55,885 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:35:55,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:35:55,888 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:35:55,888 INFO L175 Difference]: Start difference. First operand has 64 places, 52 transitions, 116 flow. Second operand 3 states and 406 transitions. [2022-11-25 15:35:55,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 50 transitions, 212 flow [2022-11-25 15:35:55,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 50 transitions, 211 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 15:35:55,890 INFO L231 Difference]: Finished difference. Result has 63 places, 50 transitions, 113 flow [2022-11-25 15:35:55,890 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=113, PETRI_PLACES=63, PETRI_TRANSITIONS=50} [2022-11-25 15:35:55,891 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -33 predicate places. [2022-11-25 15:35:55,891 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 50 transitions, 113 flow [2022-11-25 15:35:55,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:35:55,892 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:35:55,892 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 15:35:55,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 15:35:55,893 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-11-25 15:35:55,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:35:55,893 INFO L85 PathProgramCache]: Analyzing trace with hash 2603578, now seen corresponding path program 1 times [2022-11-25 15:35:55,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:35:55,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947004739] [2022-11-25 15:35:55,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:35:55,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:35:55,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:56,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:35:56,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:35:56,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947004739] [2022-11-25 15:35:56,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947004739] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:35:56,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:35:56,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 15:35:56,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002831935] [2022-11-25 15:35:56,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:35:56,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:35:56,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:35:56,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:35:56,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:35:56,049 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-11-25 15:35:56,050 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 50 transitions, 113 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:35:56,051 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:35:56,051 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-11-25 15:35:56,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:36:17,797 INFO L130 PetriNetUnfolder]: 11929/17350 cut-off events. [2022-11-25 15:36:17,798 INFO L131 PetriNetUnfolder]: For 195/195 co-relation queries the response was YES. [2022-11-25 15:36:17,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35052 conditions, 17350 events. 11929/17350 cut-off events. For 195/195 co-relation queries the response was YES. Maximal size of possible extension queue 2313. Compared 114632 event pairs, 11929 based on Foata normal form. 0/4284 useless extension candidates. Maximal degree in co-relation 35048. Up to 17350 conditions per place. [2022-11-25 15:36:17,843 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 47 selfloop transitions, 1 changer transitions 0/48 dead transitions. [2022-11-25 15:36:17,844 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 48 transitions, 205 flow [2022-11-25 15:36:17,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:36:17,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 15:36:17,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 404 transitions. [2022-11-25 15:36:17,846 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46436781609195404 [2022-11-25 15:36:17,846 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 404 transitions. [2022-11-25 15:36:17,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 404 transitions. [2022-11-25 15:36:17,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:36:17,847 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 404 transitions. [2022-11-25 15:36:17,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:17,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:17,849 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:17,849 INFO L175 Difference]: Start difference. First operand has 63 places, 50 transitions, 113 flow. Second operand 3 states and 404 transitions. [2022-11-25 15:36:17,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 48 transitions, 205 flow [2022-11-25 15:36:17,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 48 transitions, 204 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 15:36:17,850 INFO L231 Difference]: Finished difference. Result has 62 places, 48 transitions, 110 flow [2022-11-25 15:36:17,851 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=62, PETRI_TRANSITIONS=48} [2022-11-25 15:36:17,851 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -34 predicate places. [2022-11-25 15:36:17,851 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 48 transitions, 110 flow [2022-11-25 15:36:17,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:17,852 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:36:17,852 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 15:36:17,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 15:36:17,852 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-11-25 15:36:17,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:36:17,853 INFO L85 PathProgramCache]: Analyzing trace with hash 2603579, now seen corresponding path program 1 times [2022-11-25 15:36:17,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:36:17,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618625301] [2022-11-25 15:36:17,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:17,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:36:17,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:18,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:36:18,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:36:18,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618625301] [2022-11-25 15:36:18,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618625301] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:36:18,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:36:18,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 15:36:18,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180736302] [2022-11-25 15:36:18,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:36:18,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:36:18,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:36:18,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:36:18,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:36:18,085 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-11-25 15:36:18,086 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 48 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:18,086 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:36:18,086 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-11-25 15:36:18,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:36:38,291 INFO L130 PetriNetUnfolder]: 10133/14774 cut-off events. [2022-11-25 15:36:38,291 INFO L131 PetriNetUnfolder]: For 182/182 co-relation queries the response was YES. [2022-11-25 15:36:38,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29850 conditions, 14774 events. 10133/14774 cut-off events. For 182/182 co-relation queries the response was YES. Maximal size of possible extension queue 1964. Compared 95988 event pairs, 10133 based on Foata normal form. 0/3742 useless extension candidates. Maximal degree in co-relation 29846. Up to 14774 conditions per place. [2022-11-25 15:36:38,348 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 45 selfloop transitions, 1 changer transitions 0/46 dead transitions. [2022-11-25 15:36:38,348 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 46 transitions, 198 flow [2022-11-25 15:36:38,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:36:38,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 15:36:38,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 402 transitions. [2022-11-25 15:36:38,350 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46206896551724136 [2022-11-25 15:36:38,350 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 402 transitions. [2022-11-25 15:36:38,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 402 transitions. [2022-11-25 15:36:38,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:36:38,351 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 402 transitions. [2022-11-25 15:36:38,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:38,354 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:38,354 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:38,355 INFO L175 Difference]: Start difference. First operand has 62 places, 48 transitions, 110 flow. Second operand 3 states and 402 transitions. [2022-11-25 15:36:38,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 46 transitions, 198 flow [2022-11-25 15:36:38,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 46 transitions, 197 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 15:36:38,356 INFO L231 Difference]: Finished difference. Result has 61 places, 46 transitions, 107 flow [2022-11-25 15:36:38,356 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=107, PETRI_PLACES=61, PETRI_TRANSITIONS=46} [2022-11-25 15:36:38,357 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -35 predicate places. [2022-11-25 15:36:38,358 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 46 transitions, 107 flow [2022-11-25 15:36:38,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:38,358 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:36:38,358 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 15:36:38,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 15:36:38,359 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-11-25 15:36:38,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:36:38,360 INFO L85 PathProgramCache]: Analyzing trace with hash 2603581, now seen corresponding path program 1 times [2022-11-25 15:36:38,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:36:38,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176599311] [2022-11-25 15:36:38,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:38,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:36:38,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:38,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:36:38,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:36:38,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176599311] [2022-11-25 15:36:38,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176599311] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:36:38,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:36:38,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 15:36:38,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656241381] [2022-11-25 15:36:38,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:36:38,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:36:38,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:36:38,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:36:38,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:36:38,513 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-11-25 15:36:38,514 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 46 transitions, 107 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:38,514 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:36:38,515 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-11-25 15:36:38,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:36:55,247 INFO L130 PetriNetUnfolder]: 8513/12450 cut-off events. [2022-11-25 15:36:55,247 INFO L131 PetriNetUnfolder]: For 168/168 co-relation queries the response was YES. [2022-11-25 15:36:55,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25174 conditions, 12450 events. 8513/12450 cut-off events. For 168/168 co-relation queries the response was YES. Maximal size of possible extension queue 1642. Compared 79466 event pairs, 8513 based on Foata normal form. 0/3254 useless extension candidates. Maximal degree in co-relation 25170. Up to 12450 conditions per place. [2022-11-25 15:36:55,286 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 43 selfloop transitions, 1 changer transitions 0/44 dead transitions. [2022-11-25 15:36:55,286 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 44 transitions, 191 flow [2022-11-25 15:36:55,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:36:55,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 15:36:55,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 400 transitions. [2022-11-25 15:36:55,289 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45977011494252873 [2022-11-25 15:36:55,289 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 400 transitions. [2022-11-25 15:36:55,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 400 transitions. [2022-11-25 15:36:55,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:36:55,290 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 400 transitions. [2022-11-25 15:36:55,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:55,293 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:55,294 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:55,294 INFO L175 Difference]: Start difference. First operand has 61 places, 46 transitions, 107 flow. Second operand 3 states and 400 transitions. [2022-11-25 15:36:55,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 44 transitions, 191 flow [2022-11-25 15:36:55,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 44 transitions, 190 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 15:36:55,297 INFO L231 Difference]: Finished difference. Result has 60 places, 44 transitions, 104 flow [2022-11-25 15:36:55,298 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=60, PETRI_TRANSITIONS=44} [2022-11-25 15:36:55,300 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -36 predicate places. [2022-11-25 15:36:55,301 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 44 transitions, 104 flow [2022-11-25 15:36:55,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:55,301 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:36:55,301 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 15:36:55,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 15:36:55,302 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-11-25 15:36:55,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:36:55,302 INFO L85 PathProgramCache]: Analyzing trace with hash 2603582, now seen corresponding path program 1 times [2022-11-25 15:36:55,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:36:55,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969390316] [2022-11-25 15:36:55,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:55,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:36:55,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:55,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:36:55,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:36:55,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969390316] [2022-11-25 15:36:55,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969390316] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:36:55,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:36:55,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 15:36:55,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613844987] [2022-11-25 15:36:55,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:36:55,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:36:55,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:36:55,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:36:55,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:36:55,490 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-11-25 15:36:55,490 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 44 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:55,490 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:36:55,491 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-11-25 15:36:55,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:37:09,264 INFO L130 PetriNetUnfolder]: 7029/10318 cut-off events. [2022-11-25 15:37:09,264 INFO L131 PetriNetUnfolder]: For 154/154 co-relation queries the response was YES. [2022-11-25 15:37:09,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20882 conditions, 10318 events. 7029/10318 cut-off events. For 154/154 co-relation queries the response was YES. Maximal size of possible extension queue 1348. Compared 64361 event pairs, 7029 based on Foata normal form. 0/2798 useless extension candidates. Maximal degree in co-relation 20878. Up to 10318 conditions per place. [2022-11-25 15:37:09,303 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 41 selfloop transitions, 1 changer transitions 0/42 dead transitions. [2022-11-25 15:37:09,303 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 42 transitions, 184 flow [2022-11-25 15:37:09,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:37:09,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 15:37:09,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 398 transitions. [2022-11-25 15:37:09,306 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4574712643678161 [2022-11-25 15:37:09,307 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 398 transitions. [2022-11-25 15:37:09,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 398 transitions. [2022-11-25 15:37:09,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:37:09,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 398 transitions. [2022-11-25 15:37:09,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:09,310 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:09,311 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:09,311 INFO L175 Difference]: Start difference. First operand has 60 places, 44 transitions, 104 flow. Second operand 3 states and 398 transitions. [2022-11-25 15:37:09,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 42 transitions, 184 flow [2022-11-25 15:37:09,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 42 transitions, 183 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 15:37:09,313 INFO L231 Difference]: Finished difference. Result has 59 places, 42 transitions, 101 flow [2022-11-25 15:37:09,313 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=101, PETRI_PLACES=59, PETRI_TRANSITIONS=42} [2022-11-25 15:37:09,314 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -37 predicate places. [2022-11-25 15:37:09,314 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 42 transitions, 101 flow [2022-11-25 15:37:09,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:09,315 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:37:09,315 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 15:37:09,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 15:37:09,315 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-11-25 15:37:09,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:37:09,316 INFO L85 PathProgramCache]: Analyzing trace with hash 2603584, now seen corresponding path program 1 times [2022-11-25 15:37:09,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:37:09,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828883195] [2022-11-25 15:37:09,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:37:09,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:37:09,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:09,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:37:09,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:37:09,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828883195] [2022-11-25 15:37:09,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828883195] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:37:09,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:37:09,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 15:37:09,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019598488] [2022-11-25 15:37:09,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:37:09,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:37:09,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:37:09,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:37:09,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:37:09,849 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-11-25 15:37:09,850 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 42 transitions, 101 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:09,850 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:37:09,850 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-11-25 15:37:09,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:37:21,266 INFO L130 PetriNetUnfolder]: 5731/8448 cut-off events. [2022-11-25 15:37:21,267 INFO L131 PetriNetUnfolder]: For 143/143 co-relation queries the response was YES. [2022-11-25 15:37:21,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17100 conditions, 8448 events. 5731/8448 cut-off events. For 143/143 co-relation queries the response was YES. Maximal size of possible extension queue 1097. Compared 51476 event pairs, 5731 based on Foata normal form. 0/2382 useless extension candidates. Maximal degree in co-relation 17096. Up to 8448 conditions per place. [2022-11-25 15:37:21,299 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 39 selfloop transitions, 1 changer transitions 0/40 dead transitions. [2022-11-25 15:37:21,299 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 40 transitions, 177 flow [2022-11-25 15:37:21,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:37:21,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 15:37:21,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 396 transitions. [2022-11-25 15:37:21,301 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45517241379310347 [2022-11-25 15:37:21,302 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 396 transitions. [2022-11-25 15:37:21,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 396 transitions. [2022-11-25 15:37:21,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:37:21,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 396 transitions. [2022-11-25 15:37:21,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:21,306 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:21,307 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:21,307 INFO L175 Difference]: Start difference. First operand has 59 places, 42 transitions, 101 flow. Second operand 3 states and 396 transitions. [2022-11-25 15:37:21,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 40 transitions, 177 flow [2022-11-25 15:37:21,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 40 transitions, 176 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 15:37:21,309 INFO L231 Difference]: Finished difference. Result has 58 places, 40 transitions, 98 flow [2022-11-25 15:37:21,309 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=58, PETRI_TRANSITIONS=40} [2022-11-25 15:37:21,310 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -38 predicate places. [2022-11-25 15:37:21,310 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 40 transitions, 98 flow [2022-11-25 15:37:21,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:21,311 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:37:21,311 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 15:37:21,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 15:37:21,311 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-11-25 15:37:21,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:37:21,312 INFO L85 PathProgramCache]: Analyzing trace with hash 2603585, now seen corresponding path program 1 times [2022-11-25 15:37:21,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:37:21,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636007473] [2022-11-25 15:37:21,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:37:21,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:37:21,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:21,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:37:21,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:37:21,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636007473] [2022-11-25 15:37:21,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636007473] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:37:21,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:37:21,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 15:37:21,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597798215] [2022-11-25 15:37:21,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:37:21,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:37:21,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:37:21,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:37:21,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:37:21,636 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-11-25 15:37:21,637 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 40 transitions, 98 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:21,637 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:37:21,637 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-11-25 15:37:21,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:37:31,040 INFO L130 PetriNetUnfolder]: 4557/6754 cut-off events. [2022-11-25 15:37:31,040 INFO L131 PetriNetUnfolder]: For 132/132 co-relation queries the response was YES. [2022-11-25 15:37:31,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13674 conditions, 6754 events. 4557/6754 cut-off events. For 132/132 co-relation queries the response was YES. Maximal size of possible extension queue 870. Compared 40158 event pairs, 4557 based on Foata normal form. 0/1998 useless extension candidates. Maximal degree in co-relation 13670. Up to 6754 conditions per place. [2022-11-25 15:37:31,058 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 37 selfloop transitions, 1 changer transitions 0/38 dead transitions. [2022-11-25 15:37:31,058 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 38 transitions, 170 flow [2022-11-25 15:37:31,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:37:31,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 15:37:31,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 394 transitions. [2022-11-25 15:37:31,060 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4528735632183908 [2022-11-25 15:37:31,060 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 394 transitions. [2022-11-25 15:37:31,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 394 transitions. [2022-11-25 15:37:31,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:37:31,061 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 394 transitions. [2022-11-25 15:37:31,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:31,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:31,064 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:31,064 INFO L175 Difference]: Start difference. First operand has 58 places, 40 transitions, 98 flow. Second operand 3 states and 394 transitions. [2022-11-25 15:37:31,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 38 transitions, 170 flow [2022-11-25 15:37:31,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 38 transitions, 169 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 15:37:31,066 INFO L231 Difference]: Finished difference. Result has 57 places, 38 transitions, 95 flow [2022-11-25 15:37:31,066 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=95, PETRI_PLACES=57, PETRI_TRANSITIONS=38} [2022-11-25 15:37:31,066 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -39 predicate places. [2022-11-25 15:37:31,067 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 38 transitions, 95 flow [2022-11-25 15:37:31,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:31,067 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:37:31,067 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 15:37:31,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 15:37:31,068 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err19ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-11-25 15:37:31,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:37:31,068 INFO L85 PathProgramCache]: Analyzing trace with hash 2603587, now seen corresponding path program 1 times [2022-11-25 15:37:31,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:37:31,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664726391] [2022-11-25 15:37:31,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:37:31,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:37:31,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:31,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:37:31,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:37:31,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664726391] [2022-11-25 15:37:31,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664726391] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:37:31,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:37:31,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 15:37:31,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44191852] [2022-11-25 15:37:31,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:37:31,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:37:31,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:37:31,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:37:31,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:37:31,151 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-11-25 15:37:31,152 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 38 transitions, 95 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:31,152 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:37:31,152 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-11-25 15:37:31,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:37:38,478 INFO L130 PetriNetUnfolder]: 3523/5260 cut-off events. [2022-11-25 15:37:38,479 INFO L131 PetriNetUnfolder]: For 120/120 co-relation queries the response was YES. [2022-11-25 15:37:38,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10662 conditions, 5260 events. 3523/5260 cut-off events. For 120/120 co-relation queries the response was YES. Maximal size of possible extension queue 666. Compared 30288 event pairs, 3523 based on Foata normal form. 0/1656 useless extension candidates. Maximal degree in co-relation 10658. Up to 5260 conditions per place. [2022-11-25 15:37:38,499 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 35 selfloop transitions, 1 changer transitions 0/36 dead transitions. [2022-11-25 15:37:38,499 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 36 transitions, 163 flow [2022-11-25 15:37:38,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:37:38,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 15:37:38,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 392 transitions. [2022-11-25 15:37:38,501 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45057471264367815 [2022-11-25 15:37:38,501 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 392 transitions. [2022-11-25 15:37:38,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 392 transitions. [2022-11-25 15:37:38,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:37:38,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 392 transitions. [2022-11-25 15:37:38,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:38,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:38,506 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:38,507 INFO L175 Difference]: Start difference. First operand has 57 places, 38 transitions, 95 flow. Second operand 3 states and 392 transitions. [2022-11-25 15:37:38,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 36 transitions, 163 flow [2022-11-25 15:37:38,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 36 transitions, 162 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 15:37:38,508 INFO L231 Difference]: Finished difference. Result has 56 places, 36 transitions, 92 flow [2022-11-25 15:37:38,509 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=56, PETRI_TRANSITIONS=36} [2022-11-25 15:37:38,509 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -40 predicate places. [2022-11-25 15:37:38,510 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 36 transitions, 92 flow [2022-11-25 15:37:38,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:38,510 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:37:38,510 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 15:37:38,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 15:37:38,511 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-11-25 15:37:38,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:37:38,511 INFO L85 PathProgramCache]: Analyzing trace with hash 2603588, now seen corresponding path program 1 times [2022-11-25 15:37:38,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:37:38,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506777442] [2022-11-25 15:37:38,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:37:38,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:37:38,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:38,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:37:38,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:37:38,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506777442] [2022-11-25 15:37:38,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506777442] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:37:38,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:37:38,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 15:37:38,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636486155] [2022-11-25 15:37:38,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:37:38,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:37:38,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:37:38,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:37:38,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:37:38,616 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-11-25 15:37:38,617 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 36 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:38,617 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:37:38,617 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-11-25 15:37:38,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:37:43,913 INFO L130 PetriNetUnfolder]: 2605/3930 cut-off events. [2022-11-25 15:37:43,913 INFO L131 PetriNetUnfolder]: For 108/108 co-relation queries the response was YES. [2022-11-25 15:37:43,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7978 conditions, 3930 events. 2605/3930 cut-off events. For 108/108 co-relation queries the response was YES. Maximal size of possible extension queue 486. Compared 21813 event pairs, 2605 based on Foata normal form. 0/1342 useless extension candidates. Maximal degree in co-relation 7974. Up to 3930 conditions per place. [2022-11-25 15:37:43,925 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 33 selfloop transitions, 1 changer transitions 0/34 dead transitions. [2022-11-25 15:37:43,925 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 34 transitions, 156 flow [2022-11-25 15:37:43,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:37:43,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 15:37:43,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 390 transitions. [2022-11-25 15:37:43,927 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4482758620689655 [2022-11-25 15:37:43,927 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 390 transitions. [2022-11-25 15:37:43,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 390 transitions. [2022-11-25 15:37:43,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:37:43,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 390 transitions. [2022-11-25 15:37:43,928 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:43,930 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:43,930 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:43,931 INFO L175 Difference]: Start difference. First operand has 56 places, 36 transitions, 92 flow. Second operand 3 states and 390 transitions. [2022-11-25 15:37:43,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 34 transitions, 156 flow [2022-11-25 15:37:43,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 34 transitions, 155 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 15:37:43,932 INFO L231 Difference]: Finished difference. Result has 55 places, 34 transitions, 89 flow [2022-11-25 15:37:43,932 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=89, PETRI_PLACES=55, PETRI_TRANSITIONS=34} [2022-11-25 15:37:43,933 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -41 predicate places. [2022-11-25 15:37:43,933 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 34 transitions, 89 flow [2022-11-25 15:37:43,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:43,933 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:37:43,934 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 15:37:43,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-25 15:37:43,934 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err22ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-11-25 15:37:43,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:37:43,935 INFO L85 PathProgramCache]: Analyzing trace with hash 2603590, now seen corresponding path program 1 times [2022-11-25 15:37:43,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:37:43,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590751630] [2022-11-25 15:37:43,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:37:43,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:37:43,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:44,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:37:44,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:37:44,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590751630] [2022-11-25 15:37:44,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590751630] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:37:44,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:37:44,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 15:37:44,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474560229] [2022-11-25 15:37:44,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:37:44,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:37:44,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:37:44,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:37:44,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:37:44,094 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-11-25 15:37:44,095 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 34 transitions, 89 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:44,095 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:37:44,095 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-11-25 15:37:44,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:37:47,634 INFO L130 PetriNetUnfolder]: 1829/2802 cut-off events. [2022-11-25 15:37:47,634 INFO L131 PetriNetUnfolder]: For 99/99 co-relation queries the response was YES. [2022-11-25 15:37:47,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5692 conditions, 2802 events. 1829/2802 cut-off events. For 99/99 co-relation queries the response was YES. Maximal size of possible extension queue 337. Compared 14982 event pairs, 1829 based on Foata normal form. 0/1064 useless extension candidates. Maximal degree in co-relation 5688. Up to 2802 conditions per place. [2022-11-25 15:37:47,647 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 31 selfloop transitions, 1 changer transitions 0/32 dead transitions. [2022-11-25 15:37:47,647 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 32 transitions, 149 flow [2022-11-25 15:37:47,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:37:47,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 15:37:47,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 388 transitions. [2022-11-25 15:37:47,649 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4459770114942529 [2022-11-25 15:37:47,649 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 388 transitions. [2022-11-25 15:37:47,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 388 transitions. [2022-11-25 15:37:47,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:37:47,650 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 388 transitions. [2022-11-25 15:37:47,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:47,653 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:47,654 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:47,654 INFO L175 Difference]: Start difference. First operand has 55 places, 34 transitions, 89 flow. Second operand 3 states and 388 transitions. [2022-11-25 15:37:47,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 32 transitions, 149 flow [2022-11-25 15:37:47,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 32 transitions, 148 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 15:37:47,656 INFO L231 Difference]: Finished difference. Result has 54 places, 32 transitions, 86 flow [2022-11-25 15:37:47,656 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=54, PETRI_TRANSITIONS=32} [2022-11-25 15:37:47,657 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -42 predicate places. [2022-11-25 15:37:47,657 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 32 transitions, 86 flow [2022-11-25 15:37:47,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:47,658 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:37:47,658 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 15:37:47,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-25 15:37:47,659 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err23ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-11-25 15:37:47,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:37:47,659 INFO L85 PathProgramCache]: Analyzing trace with hash 2603591, now seen corresponding path program 1 times [2022-11-25 15:37:47,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:37:47,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527673841] [2022-11-25 15:37:47,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:37:47,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:37:47,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:47,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:37:47,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:37:47,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527673841] [2022-11-25 15:37:47,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527673841] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:37:47,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:37:47,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 15:37:47,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430092834] [2022-11-25 15:37:47,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:37:47,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:37:47,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:37:47,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:37:47,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:37:47,876 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-11-25 15:37:47,876 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 32 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:47,877 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:37:47,877 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-11-25 15:37:47,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:37:50,493 INFO L130 PetriNetUnfolder]: 1157/1822 cut-off events. [2022-11-25 15:37:50,493 INFO L131 PetriNetUnfolder]: For 90/90 co-relation queries the response was YES. [2022-11-25 15:37:50,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3706 conditions, 1822 events. 1157/1822 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 9247 event pairs, 1157 based on Foata normal form. 0/814 useless extension candidates. Maximal degree in co-relation 3702. Up to 1822 conditions per place. [2022-11-25 15:37:50,499 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 29 selfloop transitions, 1 changer transitions 0/30 dead transitions. [2022-11-25 15:37:50,499 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 30 transitions, 142 flow [2022-11-25 15:37:50,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:37:50,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 15:37:50,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 386 transitions. [2022-11-25 15:37:50,501 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4436781609195402 [2022-11-25 15:37:50,501 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 386 transitions. [2022-11-25 15:37:50,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 386 transitions. [2022-11-25 15:37:50,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:37:50,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 386 transitions. [2022-11-25 15:37:50,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:50,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:50,505 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:50,506 INFO L175 Difference]: Start difference. First operand has 54 places, 32 transitions, 86 flow. Second operand 3 states and 386 transitions. [2022-11-25 15:37:50,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 30 transitions, 142 flow [2022-11-25 15:37:50,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 30 transitions, 141 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 15:37:50,507 INFO L231 Difference]: Finished difference. Result has 53 places, 30 transitions, 83 flow [2022-11-25 15:37:50,507 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=83, PETRI_PLACES=53, PETRI_TRANSITIONS=30} [2022-11-25 15:37:50,508 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -43 predicate places. [2022-11-25 15:37:50,508 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 30 transitions, 83 flow [2022-11-25 15:37:50,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:50,508 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:37:50,509 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 15:37:50,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-25 15:37:50,509 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err20ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-11-25 15:37:50,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:37:50,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1792705558, now seen corresponding path program 1 times [2022-11-25 15:37:50,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:37:50,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841993890] [2022-11-25 15:37:50,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:37:50,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:37:50,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:50,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:37:50,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:37:50,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841993890] [2022-11-25 15:37:50,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841993890] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:37:50,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:37:50,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 15:37:50,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831371969] [2022-11-25 15:37:50,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:37:50,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:37:50,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:37:50,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:37:50,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:37:50,658 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-11-25 15:37:50,659 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 30 transitions, 83 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:50,659 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:37:50,659 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-11-25 15:37:50,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:37:52,446 INFO L130 PetriNetUnfolder]: 933/1478 cut-off events. [2022-11-25 15:37:52,446 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2022-11-25 15:37:52,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3015 conditions, 1478 events. 933/1478 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 7229 event pairs, 933 based on Foata normal form. 0/680 useless extension candidates. Maximal degree in co-relation 3011. Up to 1478 conditions per place. [2022-11-25 15:37:52,450 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 27 selfloop transitions, 1 changer transitions 0/28 dead transitions. [2022-11-25 15:37:52,450 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 28 transitions, 135 flow [2022-11-25 15:37:52,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:37:52,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 15:37:52,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 384 transitions. [2022-11-25 15:37:52,451 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4413793103448276 [2022-11-25 15:37:52,451 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 384 transitions. [2022-11-25 15:37:52,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 384 transitions. [2022-11-25 15:37:52,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:37:52,452 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 384 transitions. [2022-11-25 15:37:52,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:52,455 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:52,455 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:52,455 INFO L175 Difference]: Start difference. First operand has 53 places, 30 transitions, 83 flow. Second operand 3 states and 384 transitions. [2022-11-25 15:37:52,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 28 transitions, 135 flow [2022-11-25 15:37:52,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 28 transitions, 134 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 15:37:52,457 INFO L231 Difference]: Finished difference. Result has 52 places, 28 transitions, 80 flow [2022-11-25 15:37:52,457 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=52, PETRI_TRANSITIONS=28} [2022-11-25 15:37:52,457 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -44 predicate places. [2022-11-25 15:37:52,458 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 28 transitions, 80 flow [2022-11-25 15:37:52,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:52,458 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:37:52,458 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 15:37:52,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-25 15:37:52,459 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-11-25 15:37:52,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:37:52,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1792705577, now seen corresponding path program 1 times [2022-11-25 15:37:52,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:37:52,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783793994] [2022-11-25 15:37:52,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:37:52,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:37:52,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:52,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:37:52,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:37:52,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783793994] [2022-11-25 15:37:52,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783793994] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:37:52,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:37:52,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 15:37:52,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440215691] [2022-11-25 15:37:52,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:37:52,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:37:52,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:37:52,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:37:52,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:37:52,517 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-11-25 15:37:52,518 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 28 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:52,518 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:37:52,518 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-11-25 15:37:52,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:37:53,945 INFO L130 PetriNetUnfolder]: 733/1170 cut-off events. [2022-11-25 15:37:53,945 INFO L131 PetriNetUnfolder]: For 56/56 co-relation queries the response was YES. [2022-11-25 15:37:53,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2396 conditions, 1170 events. 733/1170 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 5458 event pairs, 733 based on Foata normal form. 0/558 useless extension candidates. Maximal degree in co-relation 2392. Up to 1170 conditions per place. [2022-11-25 15:37:53,949 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 25 selfloop transitions, 1 changer transitions 0/26 dead transitions. [2022-11-25 15:37:53,949 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 26 transitions, 128 flow [2022-11-25 15:37:53,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:37:53,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 15:37:53,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 382 transitions. [2022-11-25 15:37:53,951 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43908045977011495 [2022-11-25 15:37:53,952 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 382 transitions. [2022-11-25 15:37:53,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 382 transitions. [2022-11-25 15:37:53,952 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:37:53,952 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 382 transitions. [2022-11-25 15:37:53,953 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:53,955 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:53,956 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:53,956 INFO L175 Difference]: Start difference. First operand has 52 places, 28 transitions, 80 flow. Second operand 3 states and 382 transitions. [2022-11-25 15:37:53,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 26 transitions, 128 flow [2022-11-25 15:37:53,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 26 transitions, 127 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 15:37:53,957 INFO L231 Difference]: Finished difference. Result has 51 places, 26 transitions, 77 flow [2022-11-25 15:37:53,958 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=77, PETRI_PLACES=51, PETRI_TRANSITIONS=26} [2022-11-25 15:37:53,958 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -45 predicate places. [2022-11-25 15:37:53,958 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 26 transitions, 77 flow [2022-11-25 15:37:53,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:53,959 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:37:53,959 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 15:37:53,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-25 15:37:53,959 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-11-25 15:37:53,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:37:53,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1792705576, now seen corresponding path program 1 times [2022-11-25 15:37:53,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:37:53,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315044529] [2022-11-25 15:37:53,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:37:53,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:37:53,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:54,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:37:54,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:37:54,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315044529] [2022-11-25 15:37:54,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315044529] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:37:54,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:37:54,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 15:37:54,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418972643] [2022-11-25 15:37:54,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:37:54,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:37:54,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:37:54,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:37:54,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:37:54,041 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-11-25 15:37:54,041 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 26 transitions, 77 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:54,042 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:37:54,042 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-11-25 15:37:54,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:37:55,468 INFO L130 PetriNetUnfolder]: 557/898 cut-off events. [2022-11-25 15:37:55,468 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2022-11-25 15:37:55,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1849 conditions, 898 events. 557/898 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 3982 event pairs, 557 based on Foata normal form. 0/448 useless extension candidates. Maximal degree in co-relation 1845. Up to 898 conditions per place. [2022-11-25 15:37:55,471 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 23 selfloop transitions, 1 changer transitions 0/24 dead transitions. [2022-11-25 15:37:55,471 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 24 transitions, 121 flow [2022-11-25 15:37:55,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:37:55,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 15:37:55,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 380 transitions. [2022-11-25 15:37:55,473 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4367816091954023 [2022-11-25 15:37:55,473 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 380 transitions. [2022-11-25 15:37:55,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 380 transitions. [2022-11-25 15:37:55,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:37:55,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 380 transitions. [2022-11-25 15:37:55,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:55,476 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:55,477 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:55,477 INFO L175 Difference]: Start difference. First operand has 51 places, 26 transitions, 77 flow. Second operand 3 states and 380 transitions. [2022-11-25 15:37:55,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 24 transitions, 121 flow [2022-11-25 15:37:55,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 24 transitions, 120 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 15:37:55,479 INFO L231 Difference]: Finished difference. Result has 50 places, 24 transitions, 74 flow [2022-11-25 15:37:55,479 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=50, PETRI_TRANSITIONS=24} [2022-11-25 15:37:55,480 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -46 predicate places. [2022-11-25 15:37:55,480 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 24 transitions, 74 flow [2022-11-25 15:37:55,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:55,480 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:37:55,480 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 15:37:55,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-25 15:37:55,481 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-11-25 15:37:55,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:37:55,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1792705571, now seen corresponding path program 1 times [2022-11-25 15:37:55,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:37:55,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495821974] [2022-11-25 15:37:55,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:37:55,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:37:55,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:55,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:37:55,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:37:55,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495821974] [2022-11-25 15:37:55,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495821974] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:37:55,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:37:55,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 15:37:55,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723361489] [2022-11-25 15:37:55,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:37:55,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:37:55,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:37:55,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:37:55,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:37:55,554 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-11-25 15:37:55,555 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 24 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:55,555 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:37:55,555 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-11-25 15:37:55,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:37:56,723 INFO L130 PetriNetUnfolder]: 405/662 cut-off events. [2022-11-25 15:37:56,723 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2022-11-25 15:37:56,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1374 conditions, 662 events. 405/662 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 2724 event pairs, 405 based on Foata normal form. 0/350 useless extension candidates. Maximal degree in co-relation 1370. Up to 662 conditions per place. [2022-11-25 15:37:56,725 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 21 selfloop transitions, 1 changer transitions 0/22 dead transitions. [2022-11-25 15:37:56,725 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 22 transitions, 114 flow [2022-11-25 15:37:56,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:37:56,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 15:37:56,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 378 transitions. [2022-11-25 15:37:56,727 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43448275862068964 [2022-11-25 15:37:56,727 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 378 transitions. [2022-11-25 15:37:56,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 378 transitions. [2022-11-25 15:37:56,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:37:56,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 378 transitions. [2022-11-25 15:37:56,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:56,731 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:56,731 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:56,732 INFO L175 Difference]: Start difference. First operand has 50 places, 24 transitions, 74 flow. Second operand 3 states and 378 transitions. [2022-11-25 15:37:56,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 22 transitions, 114 flow [2022-11-25 15:37:56,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 22 transitions, 113 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 15:37:56,733 INFO L231 Difference]: Finished difference. Result has 49 places, 22 transitions, 71 flow [2022-11-25 15:37:56,733 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=71, PETRI_PLACES=49, PETRI_TRANSITIONS=22} [2022-11-25 15:37:56,734 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -47 predicate places. [2022-11-25 15:37:56,734 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 22 transitions, 71 flow [2022-11-25 15:37:56,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:56,734 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:37:56,734 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 15:37:56,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-25 15:37:56,735 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-11-25 15:37:56,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:37:56,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1792705570, now seen corresponding path program 1 times [2022-11-25 15:37:56,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:37:56,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502492689] [2022-11-25 15:37:56,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:37:56,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:37:56,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:56,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:37:56,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:37:56,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502492689] [2022-11-25 15:37:56,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502492689] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:37:56,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:37:56,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 15:37:56,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121784376] [2022-11-25 15:37:56,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:37:56,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:37:56,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:37:56,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:37:56,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:37:56,816 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-11-25 15:37:56,818 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 22 transitions, 71 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:56,818 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:37:56,819 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-11-25 15:37:56,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:37:57,818 INFO L130 PetriNetUnfolder]: 277/462 cut-off events. [2022-11-25 15:37:57,819 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-11-25 15:37:57,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 971 conditions, 462 events. 277/462 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 1754 event pairs, 277 based on Foata normal form. 0/264 useless extension candidates. Maximal degree in co-relation 967. Up to 462 conditions per place. [2022-11-25 15:37:57,820 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 19 selfloop transitions, 1 changer transitions 0/20 dead transitions. [2022-11-25 15:37:57,821 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 20 transitions, 107 flow [2022-11-25 15:37:57,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:37:57,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 15:37:57,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 376 transitions. [2022-11-25 15:37:57,823 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.432183908045977 [2022-11-25 15:37:57,823 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 376 transitions. [2022-11-25 15:37:57,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 376 transitions. [2022-11-25 15:37:57,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:37:57,824 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 376 transitions. [2022-11-25 15:37:57,825 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:57,826 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:57,827 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:57,827 INFO L175 Difference]: Start difference. First operand has 49 places, 22 transitions, 71 flow. Second operand 3 states and 376 transitions. [2022-11-25 15:37:57,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 20 transitions, 107 flow [2022-11-25 15:37:57,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 20 transitions, 106 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 15:37:57,829 INFO L231 Difference]: Finished difference. Result has 48 places, 20 transitions, 68 flow [2022-11-25 15:37:57,829 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=48, PETRI_TRANSITIONS=20} [2022-11-25 15:37:57,829 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -48 predicate places. [2022-11-25 15:37:57,830 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 20 transitions, 68 flow [2022-11-25 15:37:57,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:57,830 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:37:57,830 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 15:37:57,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-25 15:37:57,831 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-11-25 15:37:57,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:37:57,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1792705565, now seen corresponding path program 1 times [2022-11-25 15:37:57,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:37:57,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33931391] [2022-11-25 15:37:57,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:37:57,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:37:57,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:57,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:37:57,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:37:57,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33931391] [2022-11-25 15:37:57,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33931391] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:37:57,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:37:57,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 15:37:57,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536826374] [2022-11-25 15:37:57,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:37:57,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:37:57,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:37:57,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:37:57,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:37:57,915 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-11-25 15:37:57,915 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 20 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:57,916 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:37:57,916 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-11-25 15:37:57,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:37:58,631 INFO L130 PetriNetUnfolder]: 173/298 cut-off events. [2022-11-25 15:37:58,631 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-11-25 15:37:58,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 640 conditions, 298 events. 173/298 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1007 event pairs, 173 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 636. Up to 298 conditions per place. [2022-11-25 15:37:58,632 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 17 selfloop transitions, 1 changer transitions 0/18 dead transitions. [2022-11-25 15:37:58,633 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 18 transitions, 100 flow [2022-11-25 15:37:58,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:37:58,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 15:37:58,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 374 transitions. [2022-11-25 15:37:58,635 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4298850574712644 [2022-11-25 15:37:58,635 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 374 transitions. [2022-11-25 15:37:58,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 374 transitions. [2022-11-25 15:37:58,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:37:58,635 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 374 transitions. [2022-11-25 15:37:58,636 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:58,637 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:58,637 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:58,637 INFO L175 Difference]: Start difference. First operand has 48 places, 20 transitions, 68 flow. Second operand 3 states and 374 transitions. [2022-11-25 15:37:58,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 18 transitions, 100 flow [2022-11-25 15:37:58,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 18 transitions, 99 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 15:37:58,638 INFO L231 Difference]: Finished difference. Result has 47 places, 18 transitions, 65 flow [2022-11-25 15:37:58,638 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=65, PETRI_PLACES=47, PETRI_TRANSITIONS=18} [2022-11-25 15:37:58,639 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -49 predicate places. [2022-11-25 15:37:58,639 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 18 transitions, 65 flow [2022-11-25 15:37:58,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:58,639 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:37:58,639 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 15:37:58,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-25 15:37:58,639 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-11-25 15:37:58,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:37:58,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1792705564, now seen corresponding path program 1 times [2022-11-25 15:37:58,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:37:58,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085315519] [2022-11-25 15:37:58,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:37:58,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:37:58,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:58,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:37:58,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:37:58,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085315519] [2022-11-25 15:37:58,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085315519] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:37:58,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:37:58,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 15:37:58,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127746339] [2022-11-25 15:37:58,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:37:58,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:37:58,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:37:58,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:37:58,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:37:58,756 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-11-25 15:37:58,757 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 18 transitions, 65 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:58,757 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:37:58,757 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-11-25 15:37:58,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:37:59,297 INFO L130 PetriNetUnfolder]: 93/170 cut-off events. [2022-11-25 15:37:59,297 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-25 15:37:59,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 381 conditions, 170 events. 93/170 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 475 event pairs, 93 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 377. Up to 170 conditions per place. [2022-11-25 15:37:59,298 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 15 selfloop transitions, 1 changer transitions 0/16 dead transitions. [2022-11-25 15:37:59,298 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 16 transitions, 93 flow [2022-11-25 15:37:59,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:37:59,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 15:37:59,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 372 transitions. [2022-11-25 15:37:59,303 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42758620689655175 [2022-11-25 15:37:59,303 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 372 transitions. [2022-11-25 15:37:59,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 372 transitions. [2022-11-25 15:37:59,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:37:59,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 372 transitions. [2022-11-25 15:37:59,310 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:59,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:59,313 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:59,313 INFO L175 Difference]: Start difference. First operand has 47 places, 18 transitions, 65 flow. Second operand 3 states and 372 transitions. [2022-11-25 15:37:59,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 16 transitions, 93 flow [2022-11-25 15:37:59,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 16 transitions, 92 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 15:37:59,314 INFO L231 Difference]: Finished difference. Result has 46 places, 16 transitions, 62 flow [2022-11-25 15:37:59,315 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=46, PETRI_TRANSITIONS=16} [2022-11-25 15:37:59,315 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -50 predicate places. [2022-11-25 15:37:59,315 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 16 transitions, 62 flow [2022-11-25 15:37:59,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:59,316 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:37:59,316 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 15:37:59,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-25 15:37:59,316 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting thread2Err19ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-11-25 15:37:59,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:37:59,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1792705559, now seen corresponding path program 1 times [2022-11-25 15:37:59,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:37:59,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615840419] [2022-11-25 15:37:59,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:37:59,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:37:59,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:59,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:37:59,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:37:59,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615840419] [2022-11-25 15:37:59,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615840419] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:37:59,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:37:59,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 15:37:59,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470536500] [2022-11-25 15:37:59,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:37:59,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:37:59,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:37:59,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:37:59,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:37:59,436 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-11-25 15:37:59,436 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 16 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:59,437 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:37:59,437 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-11-25 15:37:59,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:37:59,813 INFO L130 PetriNetUnfolder]: 37/78 cut-off events. [2022-11-25 15:37:59,813 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-25 15:37:59,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194 conditions, 78 events. 37/78 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 152 event pairs, 37 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 190. Up to 78 conditions per place. [2022-11-25 15:37:59,814 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 0 selfloop transitions, 0 changer transitions 14/14 dead transitions. [2022-11-25 15:37:59,814 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 14 transitions, 86 flow [2022-11-25 15:37:59,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:37:59,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 15:37:59,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 370 transitions. [2022-11-25 15:37:59,816 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42528735632183906 [2022-11-25 15:37:59,816 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 370 transitions. [2022-11-25 15:37:59,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 370 transitions. [2022-11-25 15:37:59,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:37:59,817 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 370 transitions. [2022-11-25 15:37:59,818 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:59,819 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:59,820 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:59,820 INFO L175 Difference]: Start difference. First operand has 46 places, 16 transitions, 62 flow. Second operand 3 states and 370 transitions. [2022-11-25 15:37:59,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 14 transitions, 86 flow [2022-11-25 15:37:59,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 14 transitions, 85 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 15:37:59,822 INFO L231 Difference]: Finished difference. Result has 45 places, 0 transitions, 0 flow [2022-11-25 15:37:59,822 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=45, PETRI_TRANSITIONS=0} [2022-11-25 15:37:59,823 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -51 predicate places. [2022-11-25 15:37:59,823 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 0 transitions, 0 flow [2022-11-25 15:37:59,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:37:59,826 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (146 of 147 remaining) [2022-11-25 15:37:59,827 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (145 of 147 remaining) [2022-11-25 15:37:59,828 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (144 of 147 remaining) [2022-11-25 15:37:59,828 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (143 of 147 remaining) [2022-11-25 15:37:59,828 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (142 of 147 remaining) [2022-11-25 15:37:59,828 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (141 of 147 remaining) [2022-11-25 15:37:59,828 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (140 of 147 remaining) [2022-11-25 15:37:59,829 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (139 of 147 remaining) [2022-11-25 15:37:59,829 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (138 of 147 remaining) [2022-11-25 15:37:59,829 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (137 of 147 remaining) [2022-11-25 15:37:59,829 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (136 of 147 remaining) [2022-11-25 15:37:59,829 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (135 of 147 remaining) [2022-11-25 15:37:59,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (134 of 147 remaining) [2022-11-25 15:37:59,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (133 of 147 remaining) [2022-11-25 15:37:59,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (132 of 147 remaining) [2022-11-25 15:37:59,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (131 of 147 remaining) [2022-11-25 15:37:59,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (130 of 147 remaining) [2022-11-25 15:37:59,831 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (129 of 147 remaining) [2022-11-25 15:37:59,831 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (128 of 147 remaining) [2022-11-25 15:37:59,831 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (127 of 147 remaining) [2022-11-25 15:37:59,831 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (126 of 147 remaining) [2022-11-25 15:37:59,831 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (125 of 147 remaining) [2022-11-25 15:37:59,832 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (124 of 147 remaining) [2022-11-25 15:37:59,832 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (123 of 147 remaining) [2022-11-25 15:37:59,832 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (122 of 147 remaining) [2022-11-25 15:37:59,832 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (121 of 147 remaining) [2022-11-25 15:37:59,833 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (120 of 147 remaining) [2022-11-25 15:37:59,833 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (119 of 147 remaining) [2022-11-25 15:37:59,833 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (118 of 147 remaining) [2022-11-25 15:37:59,833 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (117 of 147 remaining) [2022-11-25 15:37:59,833 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (116 of 147 remaining) [2022-11-25 15:37:59,834 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (115 of 147 remaining) [2022-11-25 15:37:59,836 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (114 of 147 remaining) [2022-11-25 15:37:59,837 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (113 of 147 remaining) [2022-11-25 15:37:59,837 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (112 of 147 remaining) [2022-11-25 15:37:59,837 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (111 of 147 remaining) [2022-11-25 15:37:59,837 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (110 of 147 remaining) [2022-11-25 15:37:59,838 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (109 of 147 remaining) [2022-11-25 15:37:59,838 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (108 of 147 remaining) [2022-11-25 15:37:59,838 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (107 of 147 remaining) [2022-11-25 15:37:59,838 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (106 of 147 remaining) [2022-11-25 15:37:59,838 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (105 of 147 remaining) [2022-11-25 15:37:59,839 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (104 of 147 remaining) [2022-11-25 15:37:59,839 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (103 of 147 remaining) [2022-11-25 15:37:59,839 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (102 of 147 remaining) [2022-11-25 15:37:59,839 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (101 of 147 remaining) [2022-11-25 15:37:59,839 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (100 of 147 remaining) [2022-11-25 15:37:59,840 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (99 of 147 remaining) [2022-11-25 15:37:59,840 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (98 of 147 remaining) [2022-11-25 15:37:59,840 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (97 of 147 remaining) [2022-11-25 15:37:59,840 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (96 of 147 remaining) [2022-11-25 15:37:59,840 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (95 of 147 remaining) [2022-11-25 15:37:59,841 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (94 of 147 remaining) [2022-11-25 15:37:59,841 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (93 of 147 remaining) [2022-11-25 15:37:59,841 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (92 of 147 remaining) [2022-11-25 15:37:59,841 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (91 of 147 remaining) [2022-11-25 15:37:59,841 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (90 of 147 remaining) [2022-11-25 15:37:59,842 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (89 of 147 remaining) [2022-11-25 15:37:59,842 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (88 of 147 remaining) [2022-11-25 15:37:59,842 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (87 of 147 remaining) [2022-11-25 15:37:59,842 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (86 of 147 remaining) [2022-11-25 15:37:59,842 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (85 of 147 remaining) [2022-11-25 15:37:59,843 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (84 of 147 remaining) [2022-11-25 15:37:59,843 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (83 of 147 remaining) [2022-11-25 15:37:59,843 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (82 of 147 remaining) [2022-11-25 15:37:59,843 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (81 of 147 remaining) [2022-11-25 15:37:59,843 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (80 of 147 remaining) [2022-11-25 15:37:59,844 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (79 of 147 remaining) [2022-11-25 15:37:59,844 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (78 of 147 remaining) [2022-11-25 15:37:59,844 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (77 of 147 remaining) [2022-11-25 15:37:59,844 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (76 of 147 remaining) [2022-11-25 15:37:59,844 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (75 of 147 remaining) [2022-11-25 15:37:59,845 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (74 of 147 remaining) [2022-11-25 15:37:59,845 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (73 of 147 remaining) [2022-11-25 15:37:59,845 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (72 of 147 remaining) [2022-11-25 15:37:59,845 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (71 of 147 remaining) [2022-11-25 15:37:59,845 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (70 of 147 remaining) [2022-11-25 15:37:59,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (69 of 147 remaining) [2022-11-25 15:37:59,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (68 of 147 remaining) [2022-11-25 15:37:59,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (67 of 147 remaining) [2022-11-25 15:37:59,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (66 of 147 remaining) [2022-11-25 15:37:59,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (65 of 147 remaining) [2022-11-25 15:37:59,847 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (64 of 147 remaining) [2022-11-25 15:37:59,847 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (63 of 147 remaining) [2022-11-25 15:37:59,847 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (62 of 147 remaining) [2022-11-25 15:37:59,847 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (61 of 147 remaining) [2022-11-25 15:37:59,847 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 147 remaining) [2022-11-25 15:37:59,848 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 147 remaining) [2022-11-25 15:37:59,848 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 147 remaining) [2022-11-25 15:37:59,848 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 147 remaining) [2022-11-25 15:37:59,848 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 147 remaining) [2022-11-25 15:37:59,848 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 147 remaining) [2022-11-25 15:37:59,849 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 147 remaining) [2022-11-25 15:37:59,849 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 147 remaining) [2022-11-25 15:37:59,849 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 147 remaining) [2022-11-25 15:37:59,849 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 147 remaining) [2022-11-25 15:37:59,849 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 147 remaining) [2022-11-25 15:37:59,850 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 147 remaining) [2022-11-25 15:37:59,850 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 147 remaining) [2022-11-25 15:37:59,850 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 147 remaining) [2022-11-25 15:37:59,850 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 147 remaining) [2022-11-25 15:37:59,851 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 147 remaining) [2022-11-25 15:37:59,851 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 147 remaining) [2022-11-25 15:37:59,851 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 147 remaining) [2022-11-25 15:37:59,851 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 147 remaining) [2022-11-25 15:37:59,851 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 147 remaining) [2022-11-25 15:37:59,852 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 147 remaining) [2022-11-25 15:37:59,852 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 147 remaining) [2022-11-25 15:37:59,852 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 147 remaining) [2022-11-25 15:37:59,852 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 147 remaining) [2022-11-25 15:37:59,852 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 147 remaining) [2022-11-25 15:37:59,853 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 147 remaining) [2022-11-25 15:37:59,853 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 147 remaining) [2022-11-25 15:37:59,853 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 147 remaining) [2022-11-25 15:37:59,853 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 147 remaining) [2022-11-25 15:37:59,853 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 147 remaining) [2022-11-25 15:37:59,854 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 147 remaining) [2022-11-25 15:37:59,854 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 147 remaining) [2022-11-25 15:37:59,854 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 147 remaining) [2022-11-25 15:37:59,854 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 147 remaining) [2022-11-25 15:37:59,854 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 147 remaining) [2022-11-25 15:37:59,855 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 147 remaining) [2022-11-25 15:37:59,855 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 147 remaining) [2022-11-25 15:37:59,855 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 147 remaining) [2022-11-25 15:37:59,855 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 147 remaining) [2022-11-25 15:37:59,855 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 147 remaining) [2022-11-25 15:37:59,856 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 147 remaining) [2022-11-25 15:37:59,856 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 147 remaining) [2022-11-25 15:37:59,856 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 147 remaining) [2022-11-25 15:37:59,856 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 147 remaining) [2022-11-25 15:37:59,856 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 147 remaining) [2022-11-25 15:37:59,857 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 147 remaining) [2022-11-25 15:37:59,857 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 147 remaining) [2022-11-25 15:37:59,857 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 147 remaining) [2022-11-25 15:37:59,857 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 147 remaining) [2022-11-25 15:37:59,857 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 147 remaining) [2022-11-25 15:37:59,858 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 147 remaining) [2022-11-25 15:37:59,858 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 147 remaining) [2022-11-25 15:37:59,858 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 147 remaining) [2022-11-25 15:37:59,858 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 147 remaining) [2022-11-25 15:37:59,858 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 147 remaining) [2022-11-25 15:37:59,859 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 147 remaining) [2022-11-25 15:37:59,859 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 147 remaining) [2022-11-25 15:37:59,859 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 147 remaining) [2022-11-25 15:37:59,859 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 147 remaining) [2022-11-25 15:37:59,859 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 147 remaining) [2022-11-25 15:37:59,860 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 147 remaining) [2022-11-25 15:37:59,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-25 15:37:59,860 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:37:59,874 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 15:37:59,874 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 15:37:59,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 03:37:59 BasicIcfg [2022-11-25 15:37:59,880 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 15:37:59,880 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 15:37:59,881 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 15:37:59,881 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 15:37:59,882 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:30:18" (3/4) ... [2022-11-25 15:37:59,888 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 15:37:59,898 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-25 15:37:59,898 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-25 15:37:59,898 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-25 15:37:59,923 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-11-25 15:37:59,924 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-25 15:37:59,927 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 15:37:59,927 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 15:37:59,987 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248f6eb-325a-4a3f-a7a4-f2ff2d778cc0/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 15:37:59,987 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 15:37:59,988 INFO L158 Benchmark]: Toolchain (without parser) took 468492.27ms. Allocated memory was 163.6MB in the beginning and 6.6GB in the end (delta: 6.4GB). Free memory was 118.3MB in the beginning and 3.4GB in the end (delta: -3.3GB). Peak memory consumption was 3.2GB. Max. memory is 16.1GB. [2022-11-25 15:37:59,989 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 163.6MB. Free memory is still 103.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:37:59,989 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.23ms. Allocated memory is still 163.6MB. Free memory was 118.3MB in the beginning and 105.1MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 15:37:59,990 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.21ms. Allocated memory is still 163.6MB. Free memory was 105.1MB in the beginning and 102.1MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 15:37:59,990 INFO L158 Benchmark]: Boogie Preprocessor took 48.63ms. Allocated memory is still 163.6MB. Free memory was 102.1MB in the beginning and 99.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:37:59,992 INFO L158 Benchmark]: RCFGBuilder took 6760.22ms. Allocated memory was 163.6MB in the beginning and 434.1MB in the end (delta: 270.5MB). Free memory was 99.4MB in the beginning and 143.0MB in the end (delta: -43.5MB). Peak memory consumption was 232.4MB. Max. memory is 16.1GB. [2022-11-25 15:37:59,992 INFO L158 Benchmark]: TraceAbstraction took 461148.37ms. Allocated memory was 434.1MB in the beginning and 6.6GB in the end (delta: 6.2GB). Free memory was 141.9MB in the beginning and 3.4GB in the end (delta: -3.3GB). Peak memory consumption was 2.9GB. Max. memory is 16.1GB. [2022-11-25 15:37:59,993 INFO L158 Benchmark]: Witness Printer took 107.26ms. Allocated memory is still 6.6GB. Free memory was 3.4GB in the beginning and 3.4GB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:37:59,996 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 163.6MB. Free memory is still 103.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 341.23ms. Allocated memory is still 163.6MB. Free memory was 118.3MB in the beginning and 105.1MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.21ms. Allocated memory is still 163.6MB. Free memory was 105.1MB in the beginning and 102.1MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.63ms. Allocated memory is still 163.6MB. Free memory was 102.1MB in the beginning and 99.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 6760.22ms. Allocated memory was 163.6MB in the beginning and 434.1MB in the end (delta: 270.5MB). Free memory was 99.4MB in the beginning and 143.0MB in the end (delta: -43.5MB). Peak memory consumption was 232.4MB. Max. memory is 16.1GB. * TraceAbstraction took 461148.37ms. Allocated memory was 434.1MB in the beginning and 6.6GB in the end (delta: 6.2GB). Free memory was 141.9MB in the beginning and 3.4GB in the end (delta: -3.3GB). Peak memory consumption was 2.9GB. Max. memory is 16.1GB. * Witness Printer took 107.26ms. Allocated memory is still 6.6GB. Free memory was 3.4GB in the beginning and 3.4GB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 71.6s, 182 PlacesBefore, 96 PlacesAfterwards, 172 TransitionsBefore, 86 TransitionsAfterwards, 6318 CoEnabledTransitionPairs, 7 FixpointIterations, 68 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 86 TotalNumberOfCompositions, 3309 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3309, independent: 3309, independent conditional: 0, independent unconditional: 3309, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1280, independent: 1280, independent conditional: 0, independent unconditional: 1280, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1280, independent: 1280, independent conditional: 0, independent unconditional: 1280, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3309, independent: 2029, independent conditional: 0, independent unconditional: 2029, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1280, unknown conditional: 0, unknown unconditional: 1280] , Statistics on independence cache: Total cache size (in pairs): 310, Positive cache size: 310, Positive conditional cache size: 0, Positive unconditional cache size: 310, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 290 locations, 147 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 459.5s, OverallIterations: 25, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 383.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 72.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 883 SdHoareTripleChecker+Valid, 5.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 824 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 5.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 82 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 987 IncrementalHoareTripleChecker+Invalid, 1069 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 82 mSolverCounterUnsat, 27 mSDtfsCounter, 987 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=187occurred in iteration=0, InterpolantAutomatonStates: 74, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 258 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 25 InterpolantComputations, 25 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 72 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-25 15:38:00,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248f6eb-325a-4a3f-a7a4-f2ff2d778cc0/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE